Possible Hazards and Chemicals CHEM 202 Complete List Of
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SDS Contains All of the Information Required by the HPR
SAFETY DATA SHEET Preparation Date: 7/7/2015 Revision Date: 7/6/2018 Revision Number: G2 1. IDENTIFICATION Product identifier Product code: C1115 Product Name: CALCIUM HYDROXIDE, POWDER, REAGENT, ACS Other means of identification Synonyms: Calcium hydrate Carboxide Calcium dihydroxidede calcium (French) CAS #: 1305-62-0 RTECS # EW2800000 CI#: Not available Recommended use of the chemical and restrictions on use Recommended use: Fireproofing coatings. water treatment. Buffering agent. In paper manufacture process. Chemical intermediate. In dental cement. In lubricants. In mortar, plaster, cement and other building and paving materials. In fungicides. In pesticides. In SBR rubber vulcanization. Uses advised against No information available Supplier: Spectrum Chemical Mfg. Corp 14422 South San Pedro St. Gardena, CA 90248 (310) 516-8000 Order Online At: https://www.spectrumchemical.com Emergency telephone number Chemtrec 1-800-424-9300 Contact Person: Martin LaBenz (West Coast) Contact Person: Ibad Tirmiz (East Coast) 2. HAZARDS IDENTIFICATION Classification This chemical is considered hazardous according to the 2012 OSHA Hazard Communication Standard (29 CFR 1910.1200) Considered a dangerous substance or mixture according to the Globally Harmonized System (GHS) Skin corrosion/irritation Category 2 Serious eye damage/eye irritation Category 1 Specific target organ toxicity (single exposure) Category 3 Label elements Danger Product code: C1115 Product name: CALCIUM 1 / 13 HYDROXIDE, POWDER, REAGENT, ACS Hazard statements Causes skin irritation Causes serious eye damage May cause respiratory irritation Hazards not otherwise classified (HNOC) Not Applicable Other hazards Not available Precautionary Statements - Prevention Wash face, hands and any exposed skin thoroughly after handling Avoid breathing dust/fume/gas/mist/vapors/spray Use only outdoors or in a well-ventilated area Wear protective gloves Wear eye/face protection Precautionary Statements - Response IF IN EYES: Rinse cautiously with water for several minutes. -
One-Pot Synthesis of Tetrasubstituted Imidazoles Catalyzed by Preyssler-Type Heteropoly Acid
ISSN: 0973-4945; CODEN ECJHAO E-Journal of Chemistry http://www.e-journals.net 2011, 8(2), 547-552 One-Pot Synthesis of Tetrasubstituted Imidazoles Catalyzed by Preyssler-Type Heteropoly Acid ALI JAVID §*, MAJID M. HERAVI #, F. F. BAMOHARRAM and MOHSEN NIKPOUR § §Department of Chemistry, School of Sciences Islamic Azad University, Ahvaz Branch, Ahvaz 6134968875, Iran #Department of Chemistry Azzahra University, Vanak, Tehran, Iran Department of Chemistry, School of Sciences Islamic Azad University, Mashhad Branch, Mashhad, Iran [email protected] Received 27 June 2010; Accepted 2 September 2010 Abstract: A simple one-pot four-component synthetic method was reported for the preparation of tetrasubstituted imidazole derivatives from benzil, aromatic aldehydes, primary amines and ammonium acetate in the presence of Preyssler-type heteropoly acid catalyst . This method was proved to be eco- benign, easy work-up, convenient, relatively short reaction times and the products were isolated with high yields. Keywords: Multi-component reactions (MCRs), One-pot synthesis, tetrasubstituted imidazoles, Preyssler catalyst, Heteropoly acid (HPA) Introduction Imidazole, at first, has been prepared by debus 1 in 1858. Over the century, imidazole derivatives have received significant attention due to their synthesis, reactions and biochemical properties. The imidazoles are one of the most important substructures found in a large number of natural products and pharmacologically active compounds. For example, histidine, histamine and biotin, an active component in several drug molecules 2, anti-allergic activity 3, hypnotic agent etomidate 4, proton pump inhibitor omeprazole 5 and the benzodiazepine antagonist flumazenil 6 are imidazole derivatives. Recent advances in green chemistry and organometallic catalysis has extended the application of imidazoles as ionic liquids 7 and N-heterocyclic carbenes 8. -
Bromothymol Blue
Safety Data Sheet Bromothymol Blue 1. PRODUCT AND COMPANY IDENTIFICATION Product Name: Bromothymol Blue Synonyms/Generic Names: 4,4'-(3H-2,1-Benzoxathiol-3-ylidene)bis[2-bromo-3-methyl-6-(1- methylethyl)phenol]S,S-dioxide sodium salt SDS Number: 116.00 Product Use: For Educational Use Only Manufacturer: Columbus Chemical Industries, Inc. N4335 Temkin Rd. Columbus, WI. 53925 For More Information Contact: Ward's Science 5100 West Henrietta Rd. PO Box 92912-9012 Rochester, NY 14692 (800) 962-2660 (Monday-Friday 7:30-7:00 Eastern Time) In Case of Emergency Call: CHEMTREC - 800-424-9300 or 703-527-3887 (24 Hours/Day, 7 Days/Week) 2. HAZARDS IDENTIFICATION OSHA Hazards: No known OSHA hazards. Target Organs: None Signal Word: Warning Pictograms: None GHS Classification: Acute toxicity, Oral Category 5 GHS Label Elements, including precautionary statements: Hazard Statements: H303 May be harmful if swallowed. Precautionary Statements: P312 Call a POISON CENTER or doctor/physician if you feel unwell. Potential Health Effects Eyes May cause eye irritation. Inhalation May be harmful if inhaled. Causes respiratory tract irritation. Skin May be harmful if absorbed through skin. Causes skin irritation. Ingestion May be harmful if swallowed. Revised on 01/07/2013 Page 1 of 5 NFPA Ratings HMIS Ratings Health 1 Health 1 Flammability 1 Fire 1 Reactivity 0 Reactivity 0 Specific hazard Not Available Personal E 3. COMPOSITION/INFORMATION ON INGREDIENTS EINECS# / Molecular Component Weight % CAS # Formula ELINCS# Weight Bromothymol Blue 100 34722-90-2 N/A C27H27Br2NaO5S 646.36 g/mol 4. FIRST-AID MEASURES Eyes Rinse with plenty of water for at least 15 minutes and seek medical attention if necessary. -
Microstructural and Compressive Strength Analysis for Cement Mortar with Industrial Waste Materials
Available online at www.CivileJournal.org Civil Engineering Journal Vol. 6, No. 5, May, 2020 Microstructural and Compressive Strength Analysis for Cement Mortar with Industrial Waste Materials Zahraa Fakhri Jawad a, Rusul Jaber Ghayyib a, Awham Jumah Salman a* a Al-Furat Al-Awsat Technical University, Najaf, Kufa, Iraq. Received 06 December 2019; Accepted 02 March 2020 Abstract Cement production uses large quantities of natural resources and contributes to the release of CO2. In order to treat the environmental effects related to cement manufacturing, there is a need to improve alternative binders to make concrete. Accordingly, extensive study is ongoing into the utilization of cement replacements, using many waste materials and industrial. This paper introduces the results of experimental investigations upon the mortar study with the partial cement replacement. Fly ash, silica fume and glass powder were used as a partial replacement, and cement was replaced by 0%, 1%, 1.5%, 3% and 5% of each replacement by the weight. Compressive strength test was conducted upon specimens at the age of 7 and 28 days. Microstructural characteristic of the modified mortar was done through the scanning electron microscope (SEM) vision, and X-ray diffraction (XRD) analysis was carried out for mixes with different replacements. The tests results were compared with the control mix. The results manifested that all replacements present the development of strength; this improvement was less in the early ages and raised at the higher ages in comparison with the control specimens. Microstructural analysis showed the formation of hydration compounds in mortar paste for each replacement. This study concluded that the strength significantly improved by adding 5% of silica fume compared with fly ash and glass powder. -
Preparation of Barium Strontium Titanate Powder from Citrate
APPLIED ORGANOMETALLIC CHEMISTRY Appl. Organometal. Chem. 13, 383–397 (1999) Preparation of Barium Strontium Titanate Powder from Citrate Precursor Chen-Feng Kao* and Wein-Duo Yang Department of Chemical Engineering, National Cheng Kung University, Tainan, 70101, Taiwan TiCl4 or titanium isopropoxide reacted with INTRODUCTION citric acid to form a titanyl citrate precipitate. Barium strontium citrate solutions were then BaTiO3 is ferroelectric and piezoelectric and has added to the titanyl citrate reaction to form gels. extensive applications as an electronic material. It These gels were dried and calcined to (Ba,Sr)- can be used as a capacitor, thermistor, transducer, TiO3 powders. The gels and powders were accelerometer or degausser of colour television. characterized by DSC/TGA, IR, SEM and BaTiO3 doped with strontium retains its original XRD analyses. These results showed that, at characteristics but has a lower Curie temperature 500 °C, the gels decomposed to Ba,Sr carbonate for positive temperature coefficient devices under and TiO2, followed by the formation of (Ba,Sr)- various conditions. TiO3. The onset of perovskite formation oc- Besides solid-state reactions, chemical reactions curred at 600 °C, and was nearly complete at have also been used to prepare BaTiO3 powder. 1 1000 °C. Traces of SrCO3 were still present. Among them the hydrolysis of metal alkoxide , The cation ratios of the titanate powder oxalate precipitation in ethanol2, and alcoholic prepared in the pH range 5–6 were closest to dehydration of citrate solution3 are among the more the original stoichiometry. Only 0.1 mol% of the attractive methods. In 1956 Clabaugh et al.4 free cations remained in solution. -
ACUMER™ 9000 Mineral Slurry Dispersant
Technical Data ACUMER™ 9000 Mineral Slurry Dispersant Description ACUMER™ 9000 is a sodium salt of an acrylic acid-based polymer. It is a highly effective dispersant for aqueous calcium hydroxide and magnesium hydroxide slurries. Features and • Controlling phase separation Benefits • Reducing caking and clogging of equipment • Aiding the remixing of slurries after settling Typical Properties Property Typical Value Appearance Clear, light amber solution Total solids, % 44 pH 7.5 Density (lb/gal, @ 25°C) 10.8 Brookfield viscosity, (mPa.s/cps @ 25°C) 500 These properties do not constitute specifications. Performance Many problems can be encountered in producing calcium hydroxide or magnesium hydroxide slurries, including: • Wettability • Phase separation • Caking • Pumping • Pipe clogging • Remixing after setting • Slurry viscosity Calcium Hydroxide Figure 1 shows the efficiency of ACUMER 9000 as a dispersant for 30% calcium hydroxide slurry. Figure 1. ACUMER 9000 Dosage vs. Viscosity (30% Lime Slurry) Page 1 of 4 ®™Trademark of The Dow Chemical Company (“Dow”) or an affiliated company of Dow Form No. 812-00352-0216BBI ACUMER™ 9000 / Dow Oil, Gas & Mining The following table shows the positive effect of ACUMER™ 9000 dosage on lime slurry stability. Lower dosage (0.2%) gives higher slurry viscosity and lower syneresis (liquid phase separation). The desired slurry properties can be controlled by optimizing the dispersant dosage. Effect of ACUMER 9000 Dispersant on 30% Lime Slurry1 Stability After 8 Days at Room Temperature Initial Make-Down Dosage, % (solids basis) Syneresis Gel3 Flowed4 Viscosity2 0.2 2080 1.7 98.3 93.3 0.4 810 12.0 88.0 97.1 0.6 382 16.5 83.5 96.3 130% lime slurry was prepared by mixing 210 grams of slaked lime with 490 grams of deionized water (including additives) for five minutes in a Waring blender at high speed. -
The Effect of Various Hydroxide and Salt Additives on the Reduction of Fluoride Ion Mobility in Industrial Waste
sustainability Article The Effect of Various Hydroxide and Salt Additives on the Reduction of Fluoride Ion Mobility in Industrial Waste Tadas Dambrauskas 1,* , Kestutis Baltakys 1, Agne Grineviciene 1 and Valdas Rudelis 2 1 Department of Silicate Technology, Kaunas University of Technology, LT-50270 Kaunas, Lithuania; [email protected] (K.B.); [email protected] (A.G.) 2 JSC “Lifosa”, LT-57502 Kedainiai, Lithuania; [email protected] * Correspondence: [email protected] Abstract: In this work, the influence of various hydroxide and salt additives on the removal of F− ions from silica gel waste, which is obtained during the production of AlF3, was examined. The leaching of the mentioned ions from silica gel waste to the liquid medium was achieved by the application of different techniques: (1) leaching under static conditions; (2) leaching under dynamic conditions by the use of continuous liquid medium flow; and (3) leaching in cycles under dynamic conditions. It was determined that the efficiency of the fluoride removal from this waste depends on the w/s ratio, the leaching conditions, and the additives used. It was proven that it is possible to reduce the concentration of fluorine ions from 10% to <5% by changing the treatment conditions and by adding alkaline compounds. The silica gel obtained after the leaching is a promising silicon dioxide source. Keywords: fluorine ions; silica gel waste; leaching; hydroxide additives Citation: Dambrauskas, T.; Baltakys, K.; Grineviciene, A.; Rudelis, V. The 1. Introduction Effect of Various Hydroxide and Salt Waste management and the reduction of pollution are the priority areas of environ- Additives on the Reduction of mental protection in the World [1–4]. -
How to Make Concrete More Sustainable Harald Justnes1
Journal of Advanced Concrete Technology Vol. 13, 147-154, March 2015 / Copyright © 2015 Japan Concrete Institute 147 Scientific paper How to Make Concrete More Sustainable Harald Justnes1 A selected paper of ICCS13, Tokyo 2013. Received 12 November 2013, accepted 16 February 2015 doi:10.3151/jact.13.147 Abstract Production of cement is ranking 3rd in causes of man-made carbon dioxide emissions world-wide. Thus, in order to make concrete more sustainable one may work along one or more of the following routes; 1) Replacing cement in con- crete with larger amounts of supplementary cementing materials (SCMs) than usual, 2) Replacing cement in concrete with combinations of SCMs leading to synergic reactions enhancing strength, 3) Producing leaner concrete with less cement per cubic meter utilizing plasticizers and 4) Making concrete with local aggregate susceptible to alkali silica reaction (ASR) by using cement replacements, thus avoiding long transport of non-reactive aggregate. 1 Introduction SCMs, also uncommon ones like calcined marl 2. Replacing cement in concrete with combinations of The cement industry world-wide is calculated to bring SCMs leading to synergic reactions enhancing about 5-8% of the total global anthropogenic carbon strength dioxide (CO2) emissions. The general estimate is about 3. Producing leaner concrete with less cement per cubic 1 tonne of CO2 emission per tonne clinker produced, if meter utilizing plasticizers. fossil fuel is used and no measures are taken to reduce it. 4. Making concrete with local aggregate susceptible to The 3rd rank is not because cement is such a bad mate- alkali silica reaction (ASR) by using cement re- rial with respect to CO2 emissions, but owing to the fact placements, thus avoiding long transport of non- that it is so widely used to construct the infrastructure reactive aggregate and buildings of modern society as we know it. -
Material Safety Data Sheet Version 3.4 Revision Date 09/03/2012 Print Date 02/06/2014
SIGMA-ALDRICH sigma-aldrich.com Material Safety Data Sheet Version 3.4 Revision Date 09/03/2012 Print Date 02/06/2014 1. PRODUCT AND COMPANY IDENTIFICATION Product name : Strontium chloride solution Product Number : 69042 Brand : Sigma Supplier : Sigma-Aldrich 3050 Spruce Street SAINT LOUIS MO 63103 USA Telephone : +1 800-325-5832 Fax : +1 800-325-5052 Emergency Phone # (For : (314) 776-6555 both supplier and manufacturer) Preparation Information : Sigma-Aldrich Corporation Product Safety - Americas Region 1-800-521-8956 2. HAZARDS IDENTIFICATION Emergency Overview OSHA Hazards Irritant GHS Classification Skin irritation (Category 3) Eye irritation (Category 2A) GHS Label elements, including precautionary statements Pictogram Signal word Warning Hazard statement(s) H316 Causes mild skin irritation. H319 Causes serious eye irritation. Precautionary statement(s) P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. HMIS Classification Health hazard: 2 Flammability: 0 Physical hazards: 0 NFPA Rating Health hazard: 2 Fire: 0 Reactivity Hazard: 0 Potential Health Effects Inhalation May be harmful if inhaled. Causes respiratory tract irritation. Skin May be harmful if absorbed through skin. Causes skin irritation. Sigma - 69042 Page 1 of 6 Eyes Causes eye irritation. Ingestion May be harmful if swallowed. 3. COMPOSITION/INFORMATION ON INGREDIENTS Synonyms : Strontium chloridesolution Additive Screening Solution 27/Fluka kit no 78374 Component Classification Concentration Strontium chloride CAS-No. 10476-85-4 Skin Irrit. 2; Eye Dam. 1; 1 - 5 % EC-No. 233-971-6 STOT SE 3; H315, H318, H335 For the full text of the H-Statements and R-Phrases mentioned in this Section, see Section 16 4. -
Thinking Like a Chemist About Acids and Bases Part V UNIT 6 DAY 10
Thinking Like a Chemist About Acids and Bases Part V UNIT 6 DAY 10 What are we going to learn today? Explore Acid – Base Titrations Explore the concept of protonation and pKa Explore Behavior of Polyprotic Acids Acid Base Titration Why do a titration? You have a solution with an unknown property Unknown Concentration? Unknown Ka (Kb)? Both Slowly neutralize the solution by adding a strong base (acid) monitor the pH with each addition What do these plots tell you? How is the plot on the right different? Work with neighbors on Titration Discovery Activity Poll: Clicker Question The initial concentration of the HBr is: A) 7 M B) 0.7 M C) 0.007 M D) 0.0007 M E) 3.5 M Poll: Clicker Question The pKa for acetic acid is: A) 1.7 x 10-5 B) 1.6 x 10-9 C) 4.76 D) 8.32 E) 3.43 Chemical Equilibrium pH indicator Chemical Equilibrium pH indicator Bromothymol Blue, pKa = 7.1 Protonated form Deprotonated form yellow blue Poll: Clicker Question Chemical Equilibrium pH indicator Bromothymol Blue Bromophenol Blue has a pKa of around 7. When it is protonated (HA form) it is yellow, when it is deprotonated (A- form) it is blue. What color would in be in a solution in which the pH was 9? A. blue B. yellow C. green CH302 Vanden Bout/LaBrake Spring 2012 Polyprotic Acid Poll: Clicker Question Polyprotic Acid -4 Ka1 = 7.4 x 10 -5 Ka2 = 1.7 x 10 -7 Ka3 = 4.0 x 10 At pH = 2 how many of the acidic protons will be on the molecule? A. -
Bromothymol Blue Indicator, 0.04-1% Aqueous
SDS Safety Data Sheet 1. IDENTIFICATION Product Identifier: Bromothymol Blue Indicator, 0.04-1% w/v Aqueous Product Code(s): B1013, B1020, B1021 Synonyms: BTB, Sodium Salt Solution; 3,3’-Dibromothymolsulfonphthalein, Sodium Salt Solution Recommended Use: For manufacturing, industrial, and laboratory use only. Use as a laboratory reagent. Uses Advised Against: Not for food, drug, or household use. Supplier: Rocky Mountain Reagents, Inc. 4621 Technology Drive, Golden, CO 80403 Phone: (303) 762-0800 Fax: (303) 762-1240 Emergency Phone Number: For health emergency, call poison control: (800) 222-1222. 2. HAZARDS IDENTIFICATION Hazard Classifications: This product is classified as not hazardous under OSHA's Hazard Communication Standard, 29 CFR 1910.1200 (HCS) and the United Nations’ Globally Harmonized System of Classification and Labeling of Chemicals (GHS). However, all chemicals handled and used in the workplace should be treated with caution. Signal Word: Not applicable. Hazard Statements: Not applicable. Pictograms: Not applicable. Precautionary Statements: Prevention: Not applicable. Response: Not applicable. Storage: Not applicable. Disposal: Not applicable. Hazards Not Otherwise Not applicable. Classified: Toxicity Statement: Not applicable. Product: Bromothymol Blue Indicator, 0.04-1% w/v Aqueous Revision Date: 05/19/2016 1/7 3. COMPOSITION AND INFORMATION ON INGREDIENTS Component Common Name / Synonyms CAS# Chemical Formula % by Weight Water Water 7732-18-5 H2O ≥ 99.0 Bromothymol Blue, 3,3’-Dibromothymolsulfonphthalein, 34722-90-2 NaC27H27O5SBr2 ≤ 1.00 Sodium Salt Sodium Salt Trade Secret Statement: Not applicable. 4. FIRST AID MEASURES First Aid Procedures: Inhalation: Move to fresh air. If breathing is difficult, give oxygen. If not breathing, give artificial respiration. Call a physician if symptoms occur. -
Practical Problems Revised Grading Scheme
Student Code AAA-1 Practical Problems Revised Grading Scheme "Bonding the World with Chemistry" 49th INTERNATIONAL CHEMISTRY OLYMPIAD Nakhon Pathom, THAILAND Practical problems (official English version), 49th IChO 2017, Thailand 1 Student Code AAA-1 General Instructions. General Information In 0.1 mol dm-3 HCl, indicators are in the acidic form (HIn) only. In 0.1 mol dm-3 NaOH, indicators are in the basic form (In-) only. There will be no mark for the answer in the dotted line box. NOTE: Students are suggested to check the spectrophotometer before use by measuring the absorbance values of the instrument check solution at two different wavelengths, i.e., 430 and 620 nm. Spectrophotometer No. ________ is used throughout the experiment. Record the absorbance values of the instrument check solution A (at 430 nm) A (at 620 nm) Measured value ________________ ________________ Guided value 0.220 – 0.260 0.450 – 0.510 In case that the measured values are within the guided values, students can proceed with further experiments. If not, students can ask for assistance. Part a Absorbance measurement of an acid-base indicator (methyl orange) in strong acid and strong base 1. Pipette 1.50 cm3 of 2.00 10-4 mol dm-3 methyl orange indicator solution into a 25.00- cm3 volumetric flask, add 2.5 cm3 of 1 mol dm-3 HCl into the flask and make up to the volume using distilled water. Record the absorbance at 470 and 520 nm. 2. Pipette 2.00 cm3 of 2.00 10-4 mol dm-3 methyl orange indicator solution into a 25.00- cm3 volumetric flask, add 2.5 cm3 of 1 mol dm-3 NaOH into the flask and make up to the volume using distilled water.