Investigation Into the Addition of Chloroform and Bromoform to O- Bromobenzaldehyde
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Potassium Hydroxide Cas N°: 1310-58-3
OECD SIDS POTASSIUM HYDROXIDE FOREWORD INTRODUCTION POTASSIUM HYDROXIDE CAS N°: 1310-58-3 UNEP PUBLICATIONS 1 OECD SIDS POTASSIUM HYDROXIDE SIDS Initial Assessment Report For SIAM 13 Bern, Switzerland, 6-9 November 2001 1. Chemical Name: Potassium hydroxide 2. CAS Number: 1310-58-3 3. Sponsor Country: Belgium Dr. Thaly LAKHANISKY J. Wytsman 16 B-1050 Brussels, Belgium Tel : + 32 2 642 5104 Fax : +32 2 642 5224 E-mail : [email protected] 4. Shared Partnership with: ICCA (Tessenderlo Chemie NV) 5. Roles/Responsibilities of the Partners: · Name of industry sponsor /consortium · Process used 6. Sponsorship History · How was the chemical or In 2001, ICCA (Tessenderlo Chemie NV)) had proposed sponsor category brought into the and prepared draft documents(Dossier, SIAR, SIAP). It was OECD HPV Chemicals submitted to the SIDS contact point of Belgium on May 2001. Programme? The draft documents were revised by Belgium after discussion with Tessenderlo Chemie NV. The revised draft was discussed in detail with Tessenderlo Chemie NV on June and July 2001. After agreement, the documents were finalized and the checklist was developed by jointly by Belgium and Tessenderlo Chemie NV 7. Review Process Prior to the SIAM: 8. Quality check process: 9. Date of Submission: 10. Date of last Update: February 2002 11. Comments: No testing 2 UNEP PUBLICATIONS OECD SIDS POTASSIUM HYDROXIDE SIDS INITIAL ASSESSMENT PROFILE CAS No. 1310-58-3 Chemical Name Potassium hydroxide Structural Formula KOH RECOMMENDATIONS The chemical is currently of low priority for further work. SUMMARY CONCLUSIONS OF THE SIAR Human Health Solid KOH is corrosive. -
Transfer of Bromoform Present in Asparagopsis Taxiformis to Milk and Urine of Lactating Dairy Cows
foods Article Safety and Transfer Study: Transfer of Bromoform Present in Asparagopsis taxiformis to Milk and Urine of Lactating Dairy Cows Wouter Muizelaar 1,2,* , Maria Groot 3 , Gert van Duinkerken 1, Ruud Peters 3 and Jan Dijkstra 2 1 Wageningen Livestock Research, Wageningen University & Research, P.O. Box 338, 6700 AH Wageningen, The Netherlands; [email protected] 2 Animal Nutrition Group, Wageningen University & Research, P.O. Box 338, 6700 AH Wageningen, The Netherlands; [email protected] 3 Wageningen Food Safety Research, Wageningen University & Research, P.O. Box 230, 6700 AE Wageningen, The Netherlands; [email protected] (M.G.); [email protected] (R.P.) * Correspondence: [email protected]; Tel.: +31-317-487-941 Abstract: Enteric methane (CH4) is the main source of greenhouse gas emissions from ruminants. The red seaweeds Asparagopsis taxiformis (AT) and Asparagopsis armata contain halogenated compounds, including bromoform (CHBr3), which may strongly decrease enteric CH4 emissions. Bromoform is known to have several toxicological effects in rats and mice and is quickly excreted by the animals. This study investigated the transfer of CHBr3 present in AT to milk, urine, feces, and animal tissue when incorporated in the diet of dairy cows. Twelve lactating Holstein-Friesian dairy cows were randomly assigned to three treatment groups, representing the target dose (low), 2× target dose (medium), and 5× target dose (high). The adaptation period lasted seven days, and subsequently Citation: Muizelaar, W.; Groot, M.; cows were fed AT for 22 days maximally. The transfer of CHBr3 to the urine at days 1 and 10 (10–148 van Duinkerken, G.; Peters, R.; µg/L) was found with all treatments. -
MATERIAL SAFETY DATA SHEET According to the Hazard Communication Standard (29 CFR 1910.1200)
MATERIAL SAFETY DATA SHEET according to the Hazard Communication Standard (29 CFR 1910.1200) Date of issue: 12/20/2012 Version 1.0 SECTION 1. Identification Product identifier Product number 101944 Product name Bromoform for separation of minerals mixtures Relevant identified uses of the substance or mixture and uses advised against Identified uses Reagent for analysis 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: +1-978-751-4321 | 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 3, Inhalation, H331 Acute toxicity, Category 4, Oral, H302 Eye irritation, Category 2, H319 Skin irritation, Category 2, H315 Chronic aquatic toxicity, Category 2, H411 For the full text of the H-Statements mentioned in this Section, see Section 16. GHS-Labeling Hazard pictograms Signal Word Danger Hazard Statements H331 Toxic if inhaled. Page 1 of 11 MATERIAL SAFETY DATA SHEET according to the Hazard Communication Standard (29 CFR 1910.1200) Product number 101944 Version 1.0 Product name Bromoform for separation of minerals mixtures H302 Harmful if swallowed. H319 Causes serious eye irritation. H315 Causes skin irritation. H411 Toxic to aquatic life with long lasting effects. Precautionary Statements P273 Avoid release to the environment. P304 + P340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. -
Exposure to Potassium Hydroxide Can Cause Headache, Eye Contact Dizziness, Nausea and Vomiting
Right to Know Hazardous Substance Fact Sheet Common Name: POTASSIUM HYDROXIDE Synonyms: Caustic Potash; Lye; Potassium Hydrate CAS Number: 1310-58-3 Chemical Name: Potassium Hydroxide (KOH) RTK Substance Number: 1571 Date: May 2001 Revision: January 2010 DOT Number: UN 1813 Description and Use EMERGENCY RESPONDERS >>>> SEE LAST PAGE Potassium Hydroxide is an odorless, white or slightly yellow, Hazard Summary flakey or lumpy solid which is often in a water solution. It is Hazard Rating NJDOH NFPA used in making soap, as an electrolyte in alkaline batteries and HEALTH - 3 in electroplating, lithography, and paint and varnish removers. FLAMMABILITY - 0 Liquid drain cleaners contain 25 to 36% of Potassium REACTIVITY - 1 Hydroxide. CORROSIVE POISONOUS GASES ARE PRODUCED IN FIRE DOES NOT BURN Reasons for Citation Hazard Rating Key: 0=minimal; 1=slight; 2=moderate; 3=serious; f Potassium Hydroxide is on the Right to Know Hazardous 4=severe Substance List because it is cited by ACGIH, DOT, NIOSH, NFPA and EPA. f Potassium Hydroxide can affect you when inhaled and by f This chemical is on the Special Health Hazard Substance passing through the skin. List. f Potassium Hydroxide is a HIGHLY CORROSIVE CHEMICAL and contact can severely irritate and burn the skin and eyes leading to eye damage. f Contact can irritate the nose and throat. f Inhaling Potassium Hydroxide can irritate the lungs. SEE GLOSSARY ON PAGE 5. Higher exposures may cause a build-up of fluid in the lungs (pulmonary edema), a medical emergency. FIRST AID f Exposure to Potassium Hydroxide can cause headache, Eye Contact dizziness, nausea and vomiting. -
PCTM 17 ISSUED-1996 Method to Determine Rosin Acids in Tall Oil
PCTM 17 ISSUED-1996 Method to determine rosin acids in tall oil Scope 3. Methyl sulfuric acid solution, 20% - Caution: This method covers the determination of rosin acids in Slowly pour 100 g of concentrated sulfuric acid (- tall oils containing more than 15% rosin acids. 96%), while stirring constantly, into 400 g of methanol. This method may not be applicable to adducts or 4 . Thymol blue indicator - Weigh 0.1 g thymol blue in derivatives of tall oils, or other naval stores products. 100 mL methanol. Fatty acids are esterified by methanol in the presence of sulfuric Sample Preparation acid catalyst, and rosin acids are determined by titration after neutralization of the sulfuric acid. 1. Dissolve 5 ± 0.5 g of sample, weighed to the nearest 0.001 g, into a 250-m1. Erlenmeyer flask. Apparatus 2. Add 100 mL of methanol and swirl to dissolve. 3. Add 5.0 mL of methyl sulfuric acid solution. 1. Beaker, tall-form, 300-mL capacity. 4. Connect the flask to the condenser and reflux for 2. Buret, 50-mL capacity with 0.1-mL divisions. 30 minutes. Allow the flask to cool to Electronic burets are preferable for increased approximately room temperature. accuracy and precision. 3. Erlenmeyer flask, 250-mL flat-bottom fitted with a Method A - Potentiometric Titration condenser. 4. pH meter, capable of reading ± 0.1 pH over a 1. Titrate with the KOH solution to a fixed pH of range of pH 1 to pH 13 in alcoholic "solutions. 4.0, the first end point. 5. Pipet, 5-mL. -
SAFETY DATA SHEET Potassium Hydroxide, Liquid 45-50% Revision Date: 2020-06-15 Version: 1.0
SAFETY DATA SHEET Potassium Hydroxide, Liquid 45-50% Revision date: 2020-06-15 Version: 1.0 1. PRODUCT AND COMPANY IDENTIFICATION Product Identifier Product Name: Potassium Hydroxide, Liquid 45-50% Synonyms: Chemical manufacturing, fertilizer, batteries, soaps Product Form: Liquid Recommended use of the chemical and restrictions on use Recommended Use: Professional use, Industrial use. Chemical manufacturing, fertilizer, batteries, soaps Restrictions on Use: Use as recommended by the label Details of the supplier and of the safety data sheet Supplier Tersus Environmental, LLC 1116 Colonial Club Rd Wake Forest, NC 27587 Phone: +1-919-453-5577 Email: [email protected] Contact Person David F. Alden Phone: +1-919-453-5577 x2002 Email: [email protected] Emergency telephone number For leak, fire, spill or accident emergencies, call: +1-919-453-5577 (Tersus Office Hours, 8:00 AM to 5:00 PM Eastern) +1-800-424-9300 (Chemtrec 24 Hour Service – Emergency Only) +1-703-527-3887 (Chemtrec Outside United States 24 Hour Service – Emergency Only) +1-919-638-7892 Gary M. Birk (Outside office hours) 2. HAZARD IDENTIFICATION Relevant identified uses of the substance or mixture GHS Classification in accordance with 29 CFR 1910 (OSHA HCS) GHS label elements, including precautionary statements: Signal Word: Danger Pictogram(s): GHS05 GHS07 Page 1 of 10 Potassium Hydroxide, Liquid 45-50% Revision date: 2020-06-15 Version: 1.0 Hazard statement H290 May be corrosive to metals. H302 Harmful if swallowed. H314 Causes severe skin burns and eye damage H318 Causes serious eye damage. H402 Harmful to aquatic life. Precautionary statement P234 Keep only in original container. -
Potassium Hydroxide Safety Data Sheet According to Federal Register / Vol
Potassium Hydroxide Safety Data Sheet according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations Date of issue: 10/09/2004 Revision date: 02/06/2018 Supersedes: 02/06/2018 Version: 1.1 SECTION 1: Identification 1.1. Identification Product form : Substance Substance name : Potassium Hydroxide CAS-No. : 1310-58-3 Product code : LC19190 Formula : KOH Synonyms : caustic potash / caustic potash dry / caustic potash, dry solid, flake, bead or granular / caustic potash, solid / caustic potash,solid / hydrate of potash / hydrate of potassium / hydroxide of potash / hydroxide of potassium / lye (=potassium hydroxide) / potash / potash hydrate / potash lye / potassium hydrate / potassium hydroxide (K(OH)) / potassium hydroxide dry / potassium hydroxide pellets / potassium hydroxide, dry solid, flake, bead or granular / potassium hydroxide, electrolytical, solid / potassium hydroxide, solid / Potassium hydroxide, solid / potassium lye 1.2. Recommended use and restrictions on use Use of the substance/mixture : For laboratory and manufacturing use only. Recommended use : Laboratory chemicals Restrictions on use : Not for food, drug or household use 1.3. Supplier LabChem Inc Jackson's Pointe Commerce Park Building 1000, 1010 Jackson's Pointe Court Zelienople, PA 16063 - USA T 412-826-5230 - F 724-473-0647 [email protected] - www.labchem.com 1.4. Emergency telephone number Emergency number : CHEMTREC: 1-800-424-9300 or 011-703-527-3887 SECTION 2: Hazard(s) identification 2.1. Classification of the substance or mixture GHS-US classification Acute toxicity (oral) H302 Harmful if swallowed Category 4 Skin corrosion/irritation H314 Causes severe skin burns and eye damage Category 1A Hazardous to the aquatic H402 Harmful to aquatic life environment - Acute Hazard Category 3 Full text of H statements : see section 16 2.2. -
PAPERS READ BEFORE the CHEMICAL SOCIETY. XXII1.-On
View Article Online / Journal Homepage / Table of Contents for this issue 773 PAPERS READ BEFORE THE CHEMICAL SOCIETY. XXII1.-On Tetrabromide of Carbon. No. II. By THOMASBOLAS and CHARLESE. GROVES. IN a former paper* we described several methods for the preparation of the hitherto unknown tetrabromide of carbon, and in the present communication we desire to lay before the Society the results of our more recent experiments. In addition to those methods of obtaining the carbon tetrabromide, which we have already published, the fol- lowing are of interest, either from a theoretical point of view, or as affording advantageous means for the preparation of that substance. Action of Bromine on Carbon Disulphide. Our former statement that? bromine had no action on carbon disul- phide requires some modification, as we find that when it is heated to 180" or 200" for several hundred hours with bromine free from both chlorine and iodine, and the contents of the tubes are neutralised and distilled in the usual way, a liquid is obtained, which consists almost entirely of unaltered carbon disulphide ; but when this is allowed to evaporate spontaneously, a small quantity of a crystalline substance is left, which has the appearance and properties of carbon tetrabromide. The length of time required for this reaction, and the very small relative amount of substance obtained, would, however, render this Published on 01 January 1871. Downloaded by Brown University 25/10/2014 10:39:25. quite inapplicable as a process for the preparation of the tetra- bromide. Action of Bromine on Carbon Disdphide in, presence of Certain Bromides. -
Potassium Hydroxide, 0.1N (0.1M) in Ethanol Safety Data Sheet According to Federal Register / Vol
Potassium Hydroxide, 0.1N (0.1M) in Ethanol Safety Data Sheet according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations Date of issue: 12/19/2013 Revision date: 02/06/2018 Supersedes: 02/06/2018 Version: 1.3 SECTION 1: Identification 1.1. Identification Product form : Mixtures Product name : Potassium Hydroxide, 0.1N (0.1M) in Ethanol Product code : LC19310 1.2. Recommended use and restrictions on use Use of the substance/mixture : For laboratory and manufacturing use only. Recommended use : Laboratory chemicals Restrictions on use : Not for food, drug or household use 1.3. Supplier LabChem Inc Jackson's Pointe Commerce Park Building 1000, 1010 Jackson's Pointe Court Zelienople, PA 16063 - USA T 412-826-5230 - F 724-473-0647 [email protected] - www.labchem.com 1.4. Emergency telephone number Emergency number : CHEMTREC: 1-800-424-9300 or 011-703-527-3887 SECTION 2: Hazard(s) identification 2.1. Classification of the substance or mixture GHS-US classification Flammable liquids H225 Highly flammable liquid and vapour Category 2 Serious eye damage/eye H319 Causes serious eye irritation irritation Category 2A Carcinogenicity Category H350 May cause cancer 1A Reproductive toxicity H361 Developmental toxicity (oral) Category 2 Specific target organ H370 Causes damage to organs (central nervous system, optic nerve) (oral, Dermal) toxicity (single exposure) Category 1 Full text of H statements : see section 16 2.2. GHS Label elements, including precautionary statements GHS-US labeling Hazard pictograms (GHS-US) : GHS02 GHS07 GHS08 Signal word (GHS-US) : Danger Hazard statements (GHS-US) : H225 - Highly flammable liquid and vapour H319 - Causes serious eye irritation H350 - May cause cancer H361 - Developmental toxicity (oral) H370 - Causes damage to organs (central nervous system, optic nerve) (oral, Dermal) Precautionary statements (GHS-US) : P201 - Obtain special instructions before use. -
American Version
COMPENDIUM OF INTERNATIONAL METHODS OF ANALYSIS-OIV Detection of preservatives and fermentation inhibitors Method OIV-MA-AS4-02E Type IV method Detection of preservatives and fermentation inhibitors Method A 35 modified by resolution Oeno 6/2006 1. Examination of dehydroacetic acid 1.1 Principle Wine acidified with sulfuric acid is extracted with a mixture of equal parts of diethyl ether and petroleum ether. After evaporation of the solvent, the extract, recovered with a small quantity of 96% ethanol (v/v) is deposited on a thin layer of polyamide and silica gel with fluorescent indicator and subjected to the action of the mobile solvent (benzene-acetone-acetic acid). The dehydroacetic acid is identified and characterized by ultraviolet examination of the chromatogram. 1.2 Apparatus 1.2.1 Equipment for thin layer chromatography 1.2.2 Oven 1.2.3 Rotary evaporator 1.2.4 UV lamp 254 nm. 1.3 Reagents 1.3.1 Diethyl ether 1.3.2 Petroleum ether (boiling point 40 °C) 1.3.3 Methanol 1.3.4 Sulfuric acid, 20% (v/v) 1.3.5 Anhydrous sodium sulfate. 1.3.6 Ethanol, 96% (v/v) . 1.3.7 Chromatographic separation layer: 10 g polyamide powder with fluorescent indicator(e.g. polyamide DC II UV254 from Macherey-Nagel) mixed vigorously with 60 mL methanol. Add while stirring, 10 ml of water and 10ml of silica gel (with fluorescent indicator), e.g. Kiesselgel GF254 Merck. Spread this mixture on 5 plates (200 x 200 mm) to a thickness of 0.25 mm. Dry the plates at room temperature for 30 minutes, then place in a 70°C oven for 10 min. -
Techniques for Quantifying Gaseous Hocl Using Atmospheric Pressure Ionization Mass Spectrometry
View Article Online / Journal Homepage / Table of Contents for this issue Techniques for quantifying gaseous HOCl using atmospheric pressure ionization mass spectrometry Krishna L. Foster, Tracy E. Caldwell,¤ Thorsten Benter,* Sarka Langer,” John C. Hemminger and Barbara J. Finlayson-Pitts* Department of Chemistry, University of California, Irvine, CA 92697-2025, USA Received 10th September 1999, Accepted 1st November 1999 HOCl is speculated to be an important intermediate in mid-latitude marine boundary layer chemistry and at high latitudes in spring-time when surface-levelO3 depletion occurs. However, techniques do not currently exist to measure HOCl in the troposphere. We demonstrate that atmospheric pressure ionization mass spectrometry (API-MS) is a highly sensitive and selective technique which has promise for HOCl measurements both in laboratory systems and in Ðeld studies. While HOCl can be measured as the Æ ~ (HOCl O2) adduct with air as the chemical ionization (CI) reagent gas, the intensity of this adduct is sensitive to the presence of acids and to the amount of water vapor, complicating its use for quantitative measurements. However, the addition of bromoform vapor to the corona discharge region forms bromide ions that attach to HOCl and allow its detection via the (HOCl Æ Br)~ adduct. The ionÈmolecule chemistry associated with the use of air or bromoform as the CI reagent gas is discussed, with particular emphasis on the e†ects of relative humidity and gas phase acid concentrations. HOCl is quantiÐed by measuring the amount of Cl2 formed by its heterogeneous reaction with condensed-phaseHCl/H2O. Detection limits are D3 parts per billion (ppb) using air as the CI reagent gas and D0.9 ppb using bromoform. -
SDS Contains All of the Information Required by the HPR
SAFETY DATA SHEET Preparation Date: 4/1/2014 Revision date 6/24/2019 Revision Number: G2 1. IDENTIFICATION Product identifier Product code: P1040 Product Name: PETROLEUM ETHER, B.R. 20 DEG -40 DEG C Other means of identification Synonyms: Benzine (light petroleum distillate) Benzoline Canadol Ligroin Painters naphtha Refined solvent naphtha CAS #: 8032-32-4 RTECS # OI6180000 CI#: Not available Recommended use of the chemical and restrictions on use Recommended use: Solvent. 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: Tom Tyner (USA - West Coast) Contact Person: Ibad Tirmiz (USA - East Coast) 2. HAZARDS IDENTIFICATION Classification This chemical is considered hazardous by the 2012 OSHA Hazard Communication Standard (29 CFR 1910.1200) Considered a dangerous substance or mixture according to the Globally Harmonized System (GHS) Acute toxicity - Inhalation (Gases) Category 4 Acute toxicity - Inhalation (Vapors) Category 4 Skin corrosion/irritation Category 2 Serious eye damage/eye irritation Category 2A Specific target organ toxicity (single exposure) Category 3 Specific target organ toxicity (repeated exposure) Category 2 Aspiration toxicity Category 1 Flammable liquids Category 2 Label elements Product code: P1040 Product name: PETROLEUM ETHER, Page 1 / 13 B.R. 20 DEG -40 DEG C Danger Hazard statements Harmful if inhaled Causes