GPS Safety Summary Cyanuric Chloride AI Version

Total Page:16

File Type:pdf, Size:1020Kb

GPS Safety Summary Cyanuric Chloride AI Version Technical information GPS Safety Summary Cyanuric chloride This Product Safety Summary is intended to provide a general overview of the chemical substance in the context of ICCA Global Product Strategy. The information on the summary is basic information and is not intended to provide emergency response information, medical information or treatment information. Substance name Cyanuric chloride CAS-No. 108-77-0 General statement Because cyanuric chloride is used as an intermediate in the chemical industry under strictly controlled conditions, exposure is very limited. Consumer risk and exposure is very unlikely as cyanuric chloride is manufactured and handled in industrial settings only. The environmental effects, ecotoxicology and toxicology information available for cyanuric chloride is provided based on studies and/or a reliable evaluation of its hazardous properties. Cyanuric chloride should not enter surface water, groundwater water and soil. General and substance specific operational conditions and risk management measures are in place preventing exposure to workers and release to the environment. Chemical identity Chemical name (IUPAC) 2,4,6-Trichloro-1,3,5-triazine Brand name Cyanuric chloride CAS number 108-77-0 EC number 203-614-9 Molecular formula C3Cl 3N3 Evonik IIndustriesndustries AG | GPS Safety Summary | November 2011 | Version 1 | page 1/6 Structure Synonyms 1,3,5-Trichlorotriazine; 2,4,6-Trichlorotriazine; 2,4,6-Trichloro-s-triazine; Chlorotriazine; Cyanuric acid chloride; Cyanuryl chloride; Cyol; CYC; s-Triazine trichloride Uses and application Cyanuric chloride is used as an intermediate for the production of other chemicals in the chemical industry. Physical/chemical properproperttttiesiesiesies Cyanuric chloride is a white solid with a characteristic stinging odor at standard temperature and pressure. The density is 1,9 g/cm³ which is higher than that of water. It does react with water but not with oxygen. Cyanuric chloride is not classified as flammable, as an oxidizer or as an explosive substance. The substance does not self-ignite. Property Value Form(s) powder Physical state solid Color white Odour stinging Density approx. 1.904 g/cm 3 (21.6 °C) Melting/boiling point 146.5 – 147.5 °C (1013 hPa) approx. 195 °C (1013 hPa) Flammability not flammable Explosive properties not explosive Self-ignition temperature not spontaneously flammable Vapor pressure 0.60 hPa (20 °C) Molecular weight 184.41 g/mol Water solubility hardly soluble, hydrolyses to cyanuric acid and hydrochloric acid Flash point > 200 °C (1013 hPa) Octanol-water partition log Pow 2.14 (25 °C) coefficient Evonik IIndustriesndustries GmbH | GPS Safety SummarySummary| November 2010 page 2/6 Health effects Cyanuric chloride is harmful if swallowed one time and fatal if inhaled short- time. Cyanuric chloride is corrosive to the skin and causes irreversible damage to the eyes. It is irritating to the respiratory tract. Cyanuric chloride may cause an allergic skin reaction. Information on exposure related observations in humans prevent a definite classification as respiratory sensitizer. Prolonged dermal exposure to cyanuric chloride in animal studies reveals significant irritation to the skin while prolonged inhalative exposure severely affects the respiratory tract mainly due to local caustic effects. Cyanuric chloride is not considered mutagenic or genotoxic. Limited experimental data show no carcinogenic potential following dietary uptake. Cyanuric chloride does not effect fertility and does not cause teratogenic effects. Effect Assessment Result Acute toxicity (oral, dermal and harmful if swallowed. Fatal if inhaled inhalation) Irritation/corrosion corrosive to the skin, causes skin/eye/respiratory tract irreversible damage to the eye, irritating to the respiratory tract Sensitization skin sensitizer, not a respiratory sensitizer Toxicity after repeated exposure severe local effects after prolonged dermal/inhalation inhalative exposure, significant local effects after prolonged dermal exposure Genotoxicity/mutagenicity not mutagenic/not genotoxic Carcinogenicity no evidence for a carcinogenic potential Toxicity for reproduction no effects on fertility/no teratogenic effects Environmental effects Based on available data for the substance, cyanuric chloride is considered to have a low toxicity to aquatic organisms. The product is not readily biodegradable and it has no potential to bioaccumulate. Effect Assessment Result Aquatic toxicity essentially not toxic to water organisms Evonik IIndustriesndustries AG | GPS Safety Summary | November 2010 | Version 1 | page 3/6 Fate and Behavior Result Biodegradation not readily biodegradable Bioaccumulation potential no bioaccumulation expected PBT/vPvB conclusion not considered to be either PBT or vPvB Exposure Human health Cyanuric chloride is used as an intermediate in the chemical industry in closed systems under strictly controlled conditions. Worker exposure to this chemical in the manufacturing facilities is low because the process, storage and handling operations are enclosed. Specific operational conditions and risk management measures assure limited workplace exposures. When containers and tanks are cleaned, residues are disposed of as hazardous waste. All workers are trained in the safety measures of handling the substance including using personal protective equipment. Consumers will not come in contact with cyanuric chloride. EnvirEnvironmentonment Cyanuric chloride is manufactured and used in the chemical industry in closed systems and therefore no release to the environment is expected. Direct use by consumers is not intended. Risk management recommendations Cyanuric chloride is transferred and handled in closed systems. Apparatus and pipelines are free from leaks. There is no ventilation to atmosphere. The emissions are minimized by appropriate technical measures. All personal protective measures (respiratory protection, hand protection, eye protection, skin and body protection) are strictly observed. All work is done by regularly trained personnel. The requirements for disposal are strictly monitored. Evonik IIndustriesndustries AG | GPS Safety Summary | November 2010 | Version 1 | page 4/6 State agency review • Regulation (EC) No 1907/2006 concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) • EU REACH registration number: 01-2119515672-42-0000 • EU-GHS Regulation (EC) No 1272/2008 • OECD SIDS Initial Assessment Report, 25 September 2001 • IPCS International Chemical Safety Card Regulatory informinformation/classificationation/classification and labelling GHSGHS----LabelingLabeling Statutory basis GHS as per Regulation (EC) No 1272/2008 Symbol(s) Signal word(s) Danger Hazard statement(s) H330 - Fatal if inhaled. H302 - Harmful if swallowed. H335 - May cause respiratory irritation. H314 - Causes severe skin burns and eye damage. H317 - May cause an allergic skin reaction. Precautionary statement(s) P264 - Wash hands thoroughly with soap and water after handling. P280 - Wear protective gloves/protective clothing/eye protection/face protection. P284 - Wear respiratory protection. P302 + P352 - IF ON SKIN: Wash with plenty of soap and water. P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P310 - Immediately call a POISON CENTER or doctor/physician. P403 + P233 - Store in a well-ventilated place. Keep container tightly closed. Evonik IIndustriesndustries AG | GPS Safety Summary | November 2010 | Version 1 | page 5/6 Glossary Acute toxicity harmful effects after a single exposure Biodegradable breakdown of materials by a physiological environment Bioaccumulation accumulation of substances in the environment Carcinogenicity effects causing cancer Chronic toxicity harmful effects after repeated exposures GHS Global Harmonized System on Classification and Labeling Mutagenicity effects that change genes PBT Persistent Bioaccumulative Toxic Reprotoxicity teratogenicity, embryotoxicity and harmful effects on fertility Sensitizing allergenic Teratogenic effects on foetal morphology vPvB very Persistent very Bioaccumulative Contact information within company EUEUEU Email address [email protected] Emergency Telephone number +49 (0)2365 49-2232 (Fire Brigade, Infracor GmbH) Emergency Telefax number +49 (0)2365 49-4423 (Fire Brigade, Infracor GmbH) USA Email address [email protected] Emergency Telephone number 800 424-9300 (CHEMTREC) This GPS Safety Summary is based on Evonik´s present knowledge and experience as of the date of issue. However, it implies no liability or other legal responsibility on the part of Evonik, including with regards to existing third party intellectual property rights, especially patent rights. In no event shall Evonik be responsible for damages of any nature whatsoever resulting from the use of or reliance upon the information herein or the chemical to which that information refers. In particular, no warranty, whether express or implied, or guarantee in the legal sense is intended or implied by Evonik. This GPS Safety Summary is only intended to provide general information about the chemical referred to herein but not any in- depth health and safety information. The information in this GPS Safety Summary is supplied on the condition that the persons receiving the same will make their own determination as to its suitability for their purposes prior to use. This GPS Safety Summary does not supersede or replace required regulatory and/or legal communication documents. Performance of the chemical described herein should be verified by testing which should be carried out only by qualified experts. Evonik reserves the right to make any changes to this GPS Safety Summary in accordance with technological progress or further developments. Reference to trade names used by other companies is neither a recommendation, nor does it imply, that similar products could not be used. November 2011 .
Recommended publications
  • An Aged Reaction Revisited
    TETRAHEDRON Pergamon Tetrahedron 56 (2000) 9705±9711 2-Alkyl-4,6-dialkylamino-1,3,5-triazines via Grignard Alkylation of Cyanuric Chloride: An Aged Reaction Revisited Rita Menicagli,* Simona Samaritani and Valeria Zucchelli Dipartimento di Chimica e Chimica Industriale and Centro di Studi del CNR per le Macromolecole Stereordinate ed Otticamente Attive, Via Risorgimento 35, 56126 Pisa, Italy Received 24 July 2000; revised 8 September 2000; accepted 28 September 2000 AbstractÐSuitable one-pot reaction conditions are suggested to prepare, in good overall yields, some 2-(alk-1 0-ynyl)- and 2-alkyl-4,6- dialkylamino-1,3,5-triazines via reaction of cyanuric chloride with Grignard reagents followed by amination. q 2000 Elsevier Science Ltd. All rights reserved. In our studies1 concerning the protection of paper against The reaction between a benzene (CAUTION) solution of 1 pathogenic fungi, we found that 2-(alk-1 0-ynyl)-4,6- and a THF solution of alk-1 0-ynylmagnesium halides has dimethoxy-1,3,5-triazines showed an appreciable biostatic been reported to afford 2-(alk-1 0-ynyl)-4,6-dichloro-1,3,5- activity.2 Taking into account that alkylamino derivatives of triazines in 50±60% yield.6a Since the puri®cation of these 1,3,5-triazine are generally better biostatic agents than intermediates might have caused an appreciable loss of the alkoxy derivatives,1 preparation of 2-(alk-1 0-ynyl)-4,6- product owing to the well known8 reactivity of the C±Cl dialkylamino-1,3,5-triazines was necessary in order to bonds and the treatment of the crude products with nucleo- compare their antifungal activities with those of 2-(alk-1 0- philes would have lead to complex mixtures of compounds, ynyl)-4,6-dimethoxy-1,3,5-triazines.
    [Show full text]
  • Toxicological Profile for Cyanide
    CYANIDE 141 5. PRODUCTION, IMPORT/EXPORT, USE, AND DISPOSAL 5.1 PRODUCTION The demand for hydrogen cyanide in the United States during 2000 was 1.615 billion pounds, up slightly from 1.605 billion pounds in 1999 (CMR 2001). Production of hydrogen cyanide in 2003 was 2.019 billion pounds in the United States (FAS 2005). The demand for hydrogen cyanide was projected to be 1.838 billion pounds in 2004 (CMR 2001; NYSDOH 2005). Major producers of hydrogen cyanide are Adisseo USA, Inc. (Institute, West Virginia); Cyanco Co. (Winnemucca, Nevada); Cytec Industries (Waggoman, Louisiana); Degussa Corp. (Theodora, Alabama); The Dow Chemical Company (Freeport, Texas); E.I. du Pont de Neumours and Company (Memphis, Tennessee; Beaumont, Texas); Innovene (Green Lake, Texas and Lima, Ohio); Invista, Inc. (Orange, Texas and Victoria, Texas); Rhom and Haas Texas Inc. (Deer Park, Texas); Solutia, Inc. (Alvin, Texas); Sterling Chemicals, Inc. (Texas City, Texas); and Syngenta Crop Protection (St. Garbiel, Louisiana) (SRI 2005). The combined annual production capacity of these plants is approximately 2.036 billion pounds (SRI 2005). As of February 2005, the following companies produced other cyanide compounds in the United States (SRI 2005): ammonium Crompton, Taft, Louisiana; and Mallinckrodt, Inc., St. Louis, Missouri thiocyanate: cyanogen: Matheson Gas Products, Inc., Gloucester, Massachusetts potassium cyanide: DuPont Chemical Company, Memphis, Tennessee; and The Dow Chemical Company, Nashua, New Hampshire potassium silver Engelhard Corporation, Union, New Jersey; and Metalor Technologies USA, North cyanide: Attleboro, Massachusetts Facilities in the United States producing sodium cyanide and their annual capacity (in millions of pounds) in 2005 include: Cyanco Co., Winnemucca, Nevada (86); and E.I.
    [Show full text]
  • Thermodynamics and Reaction Mechanism of Urea Decomposition† Cite This: Phys
    PCCP View Article Online PAPER View Journal | View Issue Thermodynamics and reaction mechanism of urea decomposition† Cite this: Phys. Chem. Chem. Phys., 2019, 21,16785 a b b b Steffen Tischer, * Marion Bo¨rnhorst, Jonas Amsler, Gu¨nter Schoch and Olaf Deutschmann ab The selective catalytic reduction technique for automotive applications depends on ammonia production from a urea–water solution via thermolysis and hydrolysis. In this process, undesired liquid and solid by-products are formed in the exhaust pipe. The formation and decomposition of these Received 18th March 2019, by-products have been studied by thermogravimetric analysis and differential scanning calorimetry. Accepted 5th July 2019 A new reaction scheme is proposed that emphasizes the role of thermodynamic equilibrium of the DOI: 10.1039/c9cp01529a reactants in liquid and solid phases. Thermodynamic data for triuret have been refined. The observed phenomenon of liquefaction and re-solidification of biuret in the temperature range of 193–230 1Cis rsc.li/pccp explained by formation of a eutectic mixture with urea. Creative Commons Attribution-NonCommercial 3.0 Unported Licence. 1 Introduction and ammonium ISE (ion-selective electrode) measurements. Concluding from experimental results and literature data, 23 Air pollution by nitrogen oxides from Diesel engines is a major possible reactions including urea and its by-products biuret, problem concerning the environment and society. Therefore, cyanuric acid, ammelide, ammeline and melamine are presented. governments follow the need to regulate emissions by law (e.g., Further, cyanate and cyanurate salts and cyanamide are 715/2007/EG, ‘‘Euro 5 and Euro 6’’).1 The favored method to proposed as possible intermediates of high temperature urea reduce nitrogen oxides is selective catalytic reduction (SCR) decomposition.
    [Show full text]
  • SODIUM HYPOCHLORITE, AKA “LIQUID CHLORINE” in Other Words, Bleach by the PHTA Recreational Water Quality Committee
    TECH NOTES SODIUM HYPOCHLORITE, AKA “LIQUID CHLORINE” In other words, bleach By the PHTA Recreational Water Quality Committee IN THE SWIMMING pool industry, one gallon of 12.5% sodium hypochlorite a corrosive. As such, a maximum of of the most popularly chosen forms for provides approximately 12.5 ppm of 500 gallons can be stored in a non-fire, sanitizing and superchlorinating water free chlorine per 10,000 gallons of sprinkler-protected room and 1,000 is sodium hypochlorite. Commonly pool water. It takes 10.6 fl. oz of 12.5% gallons in a fire, sprinkler-protected known as “liquid chlorine” or bleach, sodium hypochlorite to get roughly room as maximum exempt quantities. sodium hypochlorite is widely used 1 ppm of free chlorine in 10,000 gallons Quantities beyond this create an “H” in both commercial and residential of pool water. The pH of pool grade Hazardous Occupancy and require swimming pools. Sodium hypochlorite sodium hypochlorite is 13. special fire protection. effectively destroys bacteria and Sodium hypochlorite is Sodium hypochlorite reacts prevents algae in swimming pools. classified as an inorganic sanitizer; in water to create hypochlorous This edition of Tech Notes provides it does not contain cyanuric acid. information on the characteristics, Sodium hypochlorite is a primary effects and proper application of sanitizer because of its ability to SODIUM HYPOCHLORITE: THE sodium hypochlorite. kill microorganisms, oxidize non- living contaminants like ammonia BASIC FACTS WHAT IT IS and swimmers’ waste and provide • Clear yellow liquid with a Sodium hypochlorite (NaOCl), a protective residual in the water. chlorine odor commonly referred to as “liquid Sodium hypochlorite is non-flammable, • A solution containing chlorine” or liquid bleach, is an non-combustible and non-explosive, water, hypochlorite, sodium aqueous solution created by and containers under 1.3 gallons hydroxide and a trace amount mixing chlorine gas in water with aretransported as “Limited Quantities” of sodium chloride concentrations of sodium hydroxide.
    [Show full text]
  • Title Synthesis of Melamine from Urea, II Author(S)
    Title Synthesis of melamine from urea, II Author(s) Kinoshita, Hideo The Review of Physical Chemistry of Japan (1954), 24(1): 19- Citation 27 Issue Date 1954-09-10 URL http://hdl.handle.net/2433/46705 Right Type Departmental Bulletin Paper Textversion publisher Kyoto University The Review of Physical Chemistry of Japan Vol. 24 No. 1 (1954) SYNTHESIS OF MELAMINE FROM UREA, II BS' HILan 1{IYU$H IT Ai it Introduction It was reportedil that the reaction of yielding melamine from urea begins from 275'G, reaches equi]ibrium within 6 hours at 325`C and there is no considerable change in the quantity and the yield of melamine above 325°C. And it was recognized that the reaction velocity is faster, as the packing ratioisgreater and so the pressure of gas phase is-higher. The yield of melamine was calculated from the following equation and the maximum yield was 99.4b. 6NH,CONH_ _ (NH_CN), + 6NH, + 3C0. (1) Moreover, as the intermediate products of this reaction, biuret, cyanuric acid and the water insoluble were obtained. The nitrogen content of this water insoluble ~cas dis- tributedbetween 45.4 and 55.7%. For the purpose of studying the process of this reaction, the author experimented the following cases, the reaction of urea under the condition of existing excess ammonia, the reaction between cyanuric acid and ammonia, the reaction between the water Insoluble and ammonia, and the reaction between melamine and water. These results are compared with those of the previous paper, and moreover the author makes clear that the water insoluble consists of ammelide and ammeline.
    [Show full text]
  • Chlorinated Cyanurates (Dichlor & Trichlor)
    Chlorinated Cyanurates (Dichlor & Trichlor) Water Chemistry Implications David G. Wahman Research Environmental Engineer National Risk Management Research Laboratory U.S. Environmental Protection Agency Cincinnati, Ohio, United States EPA Small Systems Webinar Series January 30, 2018 1 OEPA After this presentation: 1. Familiar with chlorinated cyanurates & use 2. Understand water chemistry & implications 3. Aware of things to consider in practice 4. Aware of application & future updates Free Chlorine & Sunlight . Free chlorine . Hypochlorous acid (HOCl) + hypochlorite ion (OCl–) . Absorbs ultraviolet (UV) light decomposes . Wavelengths > ~280 nm reach Earth’s surface – . Peak absorbance (λmax): OCl = 292 nm & HOCl = 235 nm . 30 minute half–life Source: Zayat et al. (2007) Cyanuric Acid Addition . Cyanuric acid (CYA) . Not related to cyanide . Outdoor pools since 1958 . Added to “stabilize” free chlorine . Forms chlorinated cyanurates . Lowers free chlorine concentration . “Reservoir” of free chlorine releases back into water . λmax = 215–220 nm more stable in sunlight . Public pool concentrations (ANSI/APSP 2009) Parameter Minimum Ideal Maximum Total (Available) Chlorine (mg Cl2/L) 1 2–4 4 Cyanuric Acid (mg/L) N/A 30–50 100 CYA Stabilization (Concentration) 100 . ↑ CYA ↑ Stability 90 80 70 60 50 40 30 pH 7 0 mg/L CYA Percent of Total Chlorine Remaining Chlorine Total Percent of 20 84–90 °F 25 mg/L CYA 10 2.5 mg Cl2/L Total Chlorine Sunlight Exposed 100 mg/L CYA 0 0 1 2 3 4 Source: Wojtowicz (2004) Time (hours) Cyanuric Acid (H3Cy) ⇌ Cyanuric Acid Isocyanuric Acid (enol form) (keto form) . “Cy” = Cyanurate structure H3Cy Chlorinated Cyanurates Trichlor Cl3Cy – Chlorinated HCl2Cy Cl2Cy Dichlor Cyanurates + Free ⇌ ⇌ Chlorine – 2– H2ClCy HClCy ClCy ⇌ ⇌ ⇌ ⇌ ⇌ ⇌ ⇌ – 2– 3– Cyanuric H3Cy H2Cy HCy Cy Acid ↑ pH .
    [Show full text]
  • Diisopropylcarbodiimide
    SUMMARY OF DATA FOR CHEMICAL SELECTION Diisopropylcarbodiimide CAS No. 693-13-0 Prepared for NCI by Technical Resources International, Inc Prepared on 8/91, rev. 2/92 Under Contract No. N01-CP-56019 Table of Contents I. Chemical Identification II. Basis of Nomination to the CSWG III. Input from Government Agencies IV. Selection Status V. Exposure Information VI. Evidence for Possible Carcinogenic Activity VII. References SUMMARY OF DATA FOR CHEMICAL SELECTION CHEMICAL IDENTIFICATION CAS Registry Number: 693-13-0 Chem. Abstr. Name: N,N'-Methanetetraylbis(2-propanamine) Synonyms: DIC; diisopropylcarbodiimide; N,N'-diisopropylcarbodiimide; 1,3-diisopropylcarbodiimide Structure, Molecular Formula and Molecular Weight: C7H14N2 Mol. wt.: 126.20 Chemical and Physical Properties: From Aldrich Chemical Co., Inc. (1988) Aldrich Technical Information Bulletin No. AL-168: 1,3- Diisopropylcarbodiimide (DIC), Milwaukee, WI. Description: Colorless liquid Boiling-point: 145-148°C Solubility: Soluble in chloroform, methylene chloride, acetonitrile, dioxane, dimethylformamide, and tetrahydrofuran Reactivity: Flammable and moisture-sensitive; reacts with water to form 1,3-diisopropylurea Density: 0.806 g/ml Refractive Index: nD20 = 1.4330 Flash Point: 33°C (Closed Cup) Technical Products and Impurities: Diisopropylcarbodiimide is available in purities ranging from 97% to 99% and in quantities ranging from research quantities to 1000 kg lots. The main impurities are the unreacted isocyanates and polymerized carbodiimides (Kuney, 1990; Janssen Chimica, 1990). BASIS OF NOMINATION TO THE CSWG Diisopropylcarbodiimide (DIC) was nominated to the CSWG based on the following considerations: DIC has been used in industry as a stabilizing agent, coupling agent, and condensing agent. The potential for exposure exists during the synthesis of polypeptides and other chemicals in the chemical and pharmaceutical industries, as well as during protein synthesis in the recombinant DNA industry.
    [Show full text]
  • MATERIAL SAFETY DATA SHEET According to the (US) Hazard Communication Standard (29 CFR 1910.1200)
    MATERIAL SAFETY DATA SHEET according to the (US) Hazard Communication Standard (29 CFR 1910.1200) Date of issue: 03/10/2013 Version 1.0 SECTION 1. Identification Product identifier Product number 802815 Product name Cyanuric chloride for synthesis Relevant identified uses of the substance or mixture and uses advised against Identified uses Chemical for synthesis Details of the supplier of the safety data sheet Company EMD Millipore Corporation | 290 Concord Road, Billerica, MA 01821, United States of America | SDS Phone Support: +1-978-715-1335 | General Inquiries: +1-978-715-4321 | Monday to Friday, 9:00 AM to 4:00 PM Eastern Time (GMT-5) e-mail: [email protected] Emergency telephone 800-424-9300 CHEMTREC (USA) +1-703-527-3887 CHEMTREC (International) 24 Hours/day; 7 Days/week SECTION 2. Hazards identification GHS Classification Acute toxicity, Category 2, Inhalation, H330 Acute toxicity, Category 4, Oral, H302 Skin corrosion, Category 1B, H314 Skin sensitization, Category 1, H317 For the full text of the H-Statements mentioned in this Section, see Section 16. GHS-Labeling Hazard pictograms Signal Word Danger Hazard Statements H330 Fatal if inhaled. Page 1 of 11 MATERIAL SAFETY DATA SHEET according to the (US) Hazard Communication Standard (29 CFR 1910.1200) Product number 802815 Version 1.0 Product name Cyanuric chloride for synthesis H302 Harmful if swallowed. H314 Causes severe skin burns and eye damage. H317 May cause an allergic skin reaction. Precautionary Statements P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/ protective clothing/ eye protection/ face protection. P304 + P340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
    [Show full text]
  • Analysis of Melamine and Cyanuric Acid by Liquid Chromatography with Diode Array Detection and Tandem Mass Spectrometry Byungchul Kim
    The University of Maine DigitalCommons@UMaine Electronic Theses and Dissertations Fogler Library 5-2009 Analysis of Melamine and Cyanuric Acid by Liquid Chromatography with Diode Array Detection and Tandem Mass Spectrometry Byungchul Kim Follow this and additional works at: http://digitalcommons.library.umaine.edu/etd Part of the Food Chemistry Commons Recommended Citation Kim, Byungchul, "Analysis of Melamine and Cyanuric Acid by Liquid Chromatography with Diode Array Detection and Tandem Mass Spectrometry" (2009). Electronic Theses and Dissertations. 12. http://digitalcommons.library.umaine.edu/etd/12 This Open-Access Dissertation is brought to you for free and open access by DigitalCommons@UMaine. It has been accepted for inclusion in Electronic Theses and Dissertations by an authorized administrator of DigitalCommons@UMaine. ANALYSIS OF MELAMINE AND CYANURIC ACID BY LIQUID CHROMATOGRAPHY WITH DIODE ARRAY DETECTION AND TANDEM MASS SPECTROMETRY By Byungchul Kim B.E. Pukyong National University, 1998 M.S. Pukyong National University, 2000 M.S. University of Arkansas, 2004 A THESIS Submitted in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy (in Food and Nutrition Sciences) The Graduate School The University of Maine May, 2009 Advisory Committee: Rodney J. Bushway, Professor of Food Science & Human Nutrition-Co chair L. Brian Perkins, Assistant Research Professor of Food Science-Co chair Alfred A. Bushway, Professor of Food Science & Human Nutrition Beth Calder, Extension Food Science Specialist and Assistant Professor of Food Science & Human Nutrition Lawrence A. LeBlanc, Assistant Research Professor of Food Science Titan Fan, President of Beacon Analytical Systems, Inc. © 2009 Byungchul Kim All Rights Reserved ii LIBRARY RIGHTS STATEMENT In presenting this thesis in partial fulfillment of the requirements for an advanced degree at The University of Maine, I agree that the Library shall make it freely available for inspection.
    [Show full text]
  • Cyanuric Acid in Commercial Swimming Pools and Its Effects on Chlorine's
    Cyanuric Acid in Commercial Swimming Pools and its Effects on Chlorine’s “Staying Power” And Oxidation Reduction Potentials By Aaron Askins Submitted to the Graduate Faculty of North Carolina State University in partial fulfillment of the requirements for the Degree of Master of Environmental Assessment Raleigh, North Carolina 2013 Approved by advisory committee: Committee Chair: Linda R. Taylor, PE Abstract Cyanuric acid levels in commercial swimming pools has been a controversial topic in the swimming pool industry in the past few years. This chemical is known for its stabilizing abilities by protecting chlorine from the ultraviolet rays of the sun which cause photolysis. Cyanuric acid has received recognition for this ability, but has also received blame for over stabilization which reduces the effectiveness of sanitization and oxidation reduction potential (ORP) of chlorine. This loss in effectiveness could possibly result in recreational water illnesses arising due to water quality standards being compromised. Local and state regulations can make it unclear on what parameters cyanuric acid levels should be in commercial swimming pools due to its inconsistencies across the United States. These variances are wide and could possibly lead to confusion amongst pool professionals to exactly where they should be when applying this chemical. In this project a look at the “staying power” of chlorine and its oxidation reduction potential at various levels of cyanuric acid will hopefully develop an understanding on where the ideal range of this chemical should be kept. This along with surveys from North Carolina professional pool companies and an interview with a local official who oversees commercial pool inspections in Wake County will develop a foundation on the perception of how pool professionals view this chemical and its capabilities along with testing for its levels.
    [Show full text]
  • Hydrogen Cyanide and Cyanides: Human Health Aspects
    This report contains the collective views of an international group of experts and does not necessarily represent the decisions or the stated policy of the United Nations Environment Programme, the International Labour Organization, or the World Health Organization. Concise International Chemical Assessment Document 61 HYDROGEN CYANIDE AND CYANIDES: HUMAN HEALTH ASPECTS Please note that the layout and pagination of this pdf file are not identical to the version in press First draft prepared by Prof. Fina Petrova Simeonova, Consultant, National Center of Hygiene, Medical Ecology and Nutrition, Sofia, Bulgaria; and Dr Lawrence Fishbein, Fairfax, Virginia, USA Published under the joint sponsorship of the United Nations Environment Programme, the International Labour Organization, and the World Health Organization, and produced within the framework of the Inter-Organization Programme for the Sound Management of Chemicals. World Health Organization Geneva, 2004 The International Programme on Chemical Safety (IPCS), established in 1980, is a joint venture of the United Nations Environment Programme (UNEP), the International Labour Organization (ILO), and the World Health Organization (WHO). The overall objectives of the IPCS are to establish the scientific basis for assessment of the risk to human health and the environment from exposure to chemicals, through international peer review processes, as a prerequisite for the promotion of chemical safety, and to provide technical assistance in strengthening national capacities for the sound management
    [Show full text]
  • Synthesis of Fmoc-Triazine Amino Acids and Its Application in the Synthesis of Short Antibacterial Peptidomimetics
    International Journal of Molecular Sciences Article Synthesis of Fmoc-Triazine Amino Acids and Its Application in the Synthesis of Short Antibacterial Peptidomimetics 1, 2 1 1,3, Pethaiah Gunasekaran y , Eun Young Kim , Jian Lee , Eun Kyoung Ryu y, Song Yub Shin 2,4 and Jeong Kyu Bang 1,3,* 1 Division of Magnetic Resonance, Korea Basic Science Institute (KBSI), Ochang 28119, Korea; [email protected] (P.G.); [email protected] (J.L.); [email protected] (E.K.R.) 2 Department of Medical Science, Graduate School, Chosun University, Gwangju 61452, Korea; [email protected] (E.Y.K.); [email protected] (S.Y.S.) 3 Department of Bio-analytical Science, University of Science & Technology, Daejeon 34113, Korea 4 Department of Cellular and Molecular Medicine, School of Medicine, Chosun University, Gwangju 61452, Korea * Correspondence: [email protected]; Tel.: +82-43-240-5023 These authors contributed equally to this work. y Received: 22 April 2020; Accepted: 18 May 2020; Published: 20 May 2020 Abstract: To combat the escalating rise of antibacterial resistance, the development of antimicrobial peptides (AMPs) with a unique mode of action is considered an attractive strategy. However, proteolytic degradation of AMPs remains the greatest challenge in their transformation into therapeutics. Herein, we synthesized Fmoc-triazine amino acids that differ from each other by anchoring either cationic or hydrophobic residues. These unnatural amino acids were adopted for solid-phase peptide synthesis (SPPS) to synthesize a series of amphipathic antimicrobial peptidomimetics. From the antimicrobial screening, we found that the trimer, BJK-4 is the most potent short antimicrobial peptidomimetic without showing hemolytic activity and it displayed enhanced proteolytic stability.
    [Show full text]