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Trimethylacetic Formic Anhydride Precipitation from Ethanol and Diethyl Ether, M.P
PDF hosted at the Radboud Repository of the Radboud University Nijmegen The following full text is a publisher's version. For additional information about this publication click this link. http://hdl.handle.net/2066/16408 Please be advised that this information was generated on 2021-09-24 and may be subject to change. 460 Edward J. Vlietsira et al. / Trimethylacetic formic anhydride precipitation from ethanol and diethyl ether, m.p. 240°C (dec.); Acknowledgements [a]5 5 —140° (c 1.0, water). MS: M* 700. We thank Mr. P. Kranenburg for valuable technical as N-(6,14-endo-Etheno-7,8-dihydromorphine-7ai-carbonyl)-L- sistance and Messrs. J. A. de Groot, L. J. M. Helvensteijn -phenylalanyl-L-leucinol (14) and E. F. Lameijer for carrying out preliminary experi The hydrochloride of 12 (1.63 g, 2.4 mmol) was converted into the ments. We are grateful to the Management of Diosynth base and dissolved in 30 ml of anhydrous 2-propanol. To this B. V., Apeldoorn, The Netherlands, for gifts of chemicals. solution, 1.5 g (15 mmol) of anhydrous calcium chloride and We thank the U.S.A. Committee on Problems of Drug 1.14 g (30 mmol) of sodium tetrahydroborate were added. The Dependence and Dr. A. E. Jacobson, Biological Coordi conversion was complete (TLC) after 6 days at 35°C. Water nator, for the results of the pharmacological studies. We (50 ml) was then added and the mixture acidified with 2 N hydro gen chloride to pH 2-3. Extraction with a mixture of chloroform are indebted to Dr. -
SODIUM FORMATE, Hydrate
CXSO045 - SODIUM FORMATE, hydrate SODIUM FORMATE, hydrate Safety Data Sheet CXSO045 Date of issue: 04/04/2017 Version: 1.0 SECTION 1: Identification 1.1. Product identifier Product name : SODIUM FORMATE, hydrate Product code : CXSO045 Product form : Substance Physical state : Solid Formula : CHNaO2 Synonyms : FORMIC ACID, ZINC SALT, DIHYDRATE DIFORMATOZINC DIHYDRATE ZINC DIFORMATE DIHYDRATE Chemical family : METAL COMPOUND 1.2. Recommended use of the chemical and restrictions on use Recommended use : Chemical intermediate For research and industrial use only 1.3. Details of the supplier of the safety data sheet GELEST, INC. 11 East Steel Road Morrisville, PA 19067 USA T 215-547-1015 - F 215-547-2484 - (M-F): 8:00 AM - 5:30 PM EST [email protected] - www.gelest.com 1.4. Emergency telephone number Emergency number : CHEMTREC: 1-800-424-9300 (USA); +1 703-527-3887 (International) SECTION 2: Hazard(s) identification 2.1. Classification of the substance or mixture GHS-US classification Not classified 2.2. Label elements GHS-US labeling No labeling applicable 2.3. Hazards not otherwise classified (HNOC) No additional information available 2.4. Unknown acute toxicity (GHS US) No data available SECTION 3: Composition/Information on ingredients 3.1. Substances Substance type : Mono-constituent Name : SODIUM FORMATE, hydrate CAS No : 141-53-7 Name Product identifier % GHS-US classification Sodium formate (CAS No) 141-53-7 95 - 100 Not classified Full text of hazard classes and H-statements : see section 16 3.2. Mixtures Not applicable 4.1. Description of first aid measures First-aid measures general : Remove contaminated clothing and shoes. -
The Activation of Surface Films of Lecithin by Amphipathic Molecules
Vol. 72 493 The Activation of Surface Films of Lecithin by Amphipathic Molecules BY R. M. C. DAWSON AND A. D. BANGHAM Agricultural Research Council Institute of Animcw Physiology,, Babraham, Cambridge (Received, 31 December 1958) In the preceding paper it was shown that a phos- methanol-chloroform (1:1, v/v) and the auspension pholipase prepared,from Penicllium notatum will filtered. The filtrates were pooled and evaporated to hydrolyse lecithin only after the, addition,, of a dryness in vacuo. The,lipid residue was then dissolved in minimum proportion of anionic amphipathic 50 ml. of ethanol and the ethanol removed in vacuo to complete dehydration. The,residue was next thoroughly molecules1 e.g. dicetylphosphoric acid, cardiolipin, extracted with 100 ml. of-diethyl, ether; insoluble matter sodium dodecyl sulphate (Bangham & Dawson, was removed by filtration and the filtrate evaporated to 1959), The onset of hydrolysis occurred, only when dryness. The residue was dissolved in 4 ml. of ether and the emulsion particles carried a minimum net 40 ml. of acetone was added;-after allowing the solution to negative charge, independent of the .species of stand for 1 hr. at 0°, the precipitate of phospholipids was anion added. recovered by centrifuging. The, acetone-damp precipitate The question arose whether the negative charge was extracted, first with,8 ml. of chloroform -methanol on the surface of the emulsion particle was ,directly (1:1, v/v), and then onc,e more with 4 ml. of the same concerned with the reaction between enzyme,and solvent, any insoluble material-beAg"remroved by centri- substrate at the or whether it fuging. -
Effects of Sodium Formate and Calcium Propionate Additives On
animals Article Effects of Sodium Formate and Calcium Propionate Additives on the Fermentation Quality and Microbial Community of Wet Brewers Grains after Short-Term Storage Jingyi Lv, Xinpeng Fang, Guanzhi Feng, Guangning Zhang , Chao Zhao, Yonggen Zhang and Yang Li * College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China; [email protected] (J.L.); [email protected] (X.F.); [email protected] (G.F.); [email protected] (G.Z.); [email protected] (C.Z.); [email protected] (Y.Z.) * Correspondence: [email protected]; Tel./Fax: +86-0451-5519-0840 Received: 27 July 2020; Accepted: 7 September 2020; Published: 9 September 2020 Simple Summary: The objective of this study was to examine the effect of sodium formate and calcium propionate on the fermentation quality and microbial community of wet brewers grains (WBG) after short-term storage. Both additives improved the silage quality of WBG ensiled for 20 days to different extents. However, ensiled WBG treated with sodium formate had higher contents of dry matter, water-soluble carbohydrates, and neutral detergent fibers and better fermentation quality, rumen degradation, and microbial composition. The addition of sodium formate enhances the abundance of desirable Lactobacillus and reduces the abundance of undesirable microorganisms, including Clostridium. In summary, during short-term storage of high-moisture feed, sodium formate has a more beneficial preservation effect than an equivalent dose of calcium propionate. Abstract: The objective of this research was to examine the effect of sodium formate (SF) and calcium propionate (CAP) on the fermentation characteristics and microbial community of wet brewers grains (WBG) after short-term storage. -
(Hexamine) Formaldehyde (Formalin) Pentaerythritol Sodium Formate
Hexamethylenetetramine (Hexamine) ▶Hexamethylenetetramine (Hexamine) White crystalline or powder compound that easily dissolves in water. It releases heat when dissolving in Characteristics water, with solubility decreasing as the temperature increases. This product has a larger crystalline piece size compared to other companies made possible by setting the granularity distribution during manufacturing. Key Used phenol-formaldehyde resin hardeners, RDX, fuel, gas absorbent and rubber vulcanizing agents, etc. applications Formaldehyde (Formalin) ▶Formaldehyde (Formalin) Aldehyde substance in a simple structure stored and sold in an aqueous solution state (37~42%) since it Characteristics exists as gas at room temperature. It has the property of becoming polymerized at a low temperature, so methanol has been added as an additive (content in the range of 2 ~ 12%). Key Used in insecticides, disinfectants, germicides, medical drugs, raw ingredient of synthetic resins and applications raw organic synthetic materials, etc. Pentaerythritol ▶Pentaerythritol Odorless white crystalline compound without hygroscopicity and non-volatile, making it a safe substance in Characteristics the air. Although there is a risk of explosion with the fine powder, the minimum explosion powder concentration in air is 30mg/㎥, with the minimum ignition temperature being 450℃. Key Used in alkyd resin, raw material for polyurethane, rosin ester, synthetic drying oil, reagent, applications PVC plasticizer and surfactant, etc. Sodium Formate ▶Sodium Formate Product generated as a byproduct in the pentaerythritol manufacturing process. This is a colorless crystal or Characteristics white crystalline powder that can be dissolved in water easily due to its hygroscopicity, but it does not dissolve easily in ethyl alcohol. Used in analysis of precipitants for precious metals, as an astringent, in textile dyes and printing, formic acid, Key electroplating agent, acidifier for leather manufacturing, reductant, organic chemical substance, analytic applications reagent, etc.. -
Development of Non-Targeted Approaches to Evidence Emerging Chemical Hazard
THESE DE DOCTORAT DE ONIRIS COMUE UNIVERSITE BRETAGNE LOIRE ECOLE DOCTORALE N° 605 Biologie Santé Spécialité : Santé Publique Par Mariane POURCHET Development of non-targeted approaches to evidence emerging chemical hazard Identification of new biomarkers of internal human exposure, in order to support human biomonitoring and the study of the link between chemical exposure and human health Thèse présentée et soutenue à Nantes, le 8 octobre 2020 Unité de recherche : LABERCA UMR INRAE 1329 Rapporteurs avant soutenance : Benedikt WARTH Associate professor, University of Vienna, Vienna, Austria Katrin VORKAMP Doctor, Aarhus University, Aarhus, Denmark Development of non-targeted approaches to evidence emerging Composition du Jury : chemical hazard Président : Adrian COVACI Professor, University of Antwerp, Antwerp, Belgium ExaminateursIdentification : Benedikt of WARTHnew biomarkers Associateof internal professor, human University exposure, of Vienna, in Vienna, order Austria to support Katrin VORKAMP Doctor, Aarhus University, Aarhus, Denmark human biomonitoringJana KLANOVA and the studyProfessor, of the Masaryk link University,between Brno, chemical Czech Republic exposure and Adrian COVACI Professor, University of Antwerp, Antwerp, Belgium human health Dir. de thèse : Jean-Philippe ANTIGNAC Doctor, Oniris, Nantes, France Thèse présentée et soutenue à Nantes, le 8 octobre 2020 Unité de recherche : LABERCA UMR INRAE 1329 I would like to express my sincere gratitude to my thesis committee, Benedikt Warth, Associate professor, Department of Food Chemistry and Toxicology, University of Vienna, Austria Katrin Vorkamp, Senior researcher, Department of Environmental Science, Aarhus University, Denmark Adrian Covaci, Professor, Toxicological Centre, University of Antwerp, Belgium Jana Klánová Professor, Research Centre for Toxic Compounds in the Environment (RECETOX), Masaryk University, Brno, Czech Republic for their time in reading and evaluating this manuscript. -
Calcium Bromide Liquid: Safety and Handling Guide Geobrom® HG520
Calcium Bromide Liquid Safety and Handling Guide GeoBrom® HG520 Great Lakes Solutions: brominated derivative products for mercury control Contents Emergency Response Telephone Numbers 1 Responsible Care®– Doing the Right Thing 2 Introduction 3 GeoBrom® HG520 Product Description 5 Product Description Typical Product Quality Physical and Chemical Properties Environmental, Health, Safety and Regulatory Summary Regulatory Information and Training 9 Procedures for the Safe Handling of Calcium Bromide Liquid 11 Product Data Sheet Personal Protective Equipment (PPE) Safety and Handling Safety Considerations Environmental Considerations Spills Recommended Storage and Security Emergency Procedures 13 Emergency Equipment and Supplies Transportation Emergencies Fire First Aid 14 Equipment and Materials of Construction 16 Corrosion Studies Summary Shipping Containers and Transportation 17 Contact Information 19 Emergency Response Telephone Numbers for Bromine Country/ Emergency Response Provider and Region Emergency Number* CHEMTREC® United States +1-800-424-9300 or 1-703-527-3887 Carechem 24 Europe +44 (0) 1235 239 670 Carechem 24 India +91 1166 4114 05 National Registration Centre for Chemicals (NRCC) China 0532-8388-9090 *Refer to the Safety Data Sheet (SDS) for additional regional emergency response phone numbers. 1 | GLS GeoBrom® HG520 CaBr2 Liquid Safety and Handling Guide Responsible Care®– Doing the Right Thing Responsible Care® is the chemical Our Responsible Care® Policy industry’s health, safety, security, Chemtura considers ensuring the safety and health of the public, our employees, and environmental performance contractors, and customers and the protection of the environment now and improvement initiative. As an for future generations to be our core values. We are committed to meeting obligation of membership, all applicable laws, regulations, permits, and internal standards throughout Responsible Care® is the ethical the world. -
Zinc-Calcium Bromide Solution
TETRA Technologies, Inc. Material Safety Data Sheet Zinc-Calcium Bromide Solution 1. PRODUCT AND COMPANY IDENTIFICATION U.S. Toll Free (800) 424-9300 CHEMTREC (24-Hr Emergency Response): TETRA Technologies, Inc. International +1 703-527-3887 25025 I-45 North Poison Control: (800) 222-1222 The Woodlands, TX 77380 Non-emergency Customer Service: (281) 367-1983 Synonyms: Zinc-Calcium Bromide, Liquid Zinc-Calcium Bromide Chemical Family: Inorganic Salt Solution MSDS Creation Date: 08 Oct 96 MSDS Revision Date: 09 Apr 08 2. HAZARDS IDENTIFICATION NFPA Ratings: (Scale 0-4) Health: 2 Fire: 0 Reactivity: 0 WARNING: Irritant; Marine Pollutant; Explosion potential with mixtures containing potassium or sodium. Odorless, clear, colorless to amber liquid. May cause irritation to skin, eyes and respiratory system. Avoid breathing mists, EMERGENCY OVERVIEW: contact with eyes, skin and clothing. Harmful if swallowed. Do not ingest. Keep container tightly closed. Wash thoroughly after handling. Keep container tightly closed. Wash thoroughly after handling. Use only with adequate ventilation. Potential Health Effects Dermal sensitizer. Single, short exposure not likely to cause significant skin irritation. However, direct contact with solution may cause irritation, redness and Skin Contact: pain, possibly severe. Additional effects may include blistering, erythema, exfoliation, ulceration, necrosis, and scarring. May cause irritation of eyes with redness and pain and superficial injury. Additional Eye Contact: effects may include tearing, eye discharge, conjunctivitis, and blurred vision. Inhalation may cause irritation to mucous membranes and respiratory system. Inhalation: Additional effects may include coughing, labored breathing, and shortness of breath. Ingestion may cause burning sensation in mouth and throat, yellowing of the skin and eyes, nausea, vomiting, diarrhea, blood in urine, inability to urinate, low blood Ingestion: pressure, blood disorders, kidney damage, liver damage, convulsions and unconsciousness. -
R614 Formaldetox
PRODUCT INFORMATION FORMALDETOX INTENDED USE • DO NOT use more than two containers of Formaldetox at a time. Formaldetox is used to destroy the hazardous component of 10% formalin (3.7% formaldehyde) in unbuffered formalin, • DO NOT mix or shake the solution. neutral buffered formalin, unbuffered zinc formalin and buffered zinc formalin (ANATECH’s Z-Fix). Formaldetox will • DO NOT use a spigot or any other cap to close the also detoxify the still bottom residue remaining after opening in the drum. The small colored plug in the top of distillation. Formaldetox cannot be used with alcoholic the drum is a safety device designed to pop out if too formalin. much pressure builds up. Always use the vapor scrubber when conducting the PRODUCT SUMMARY • reaction process. Gases (mostly carbon dioxide) are Formaldetox oxidizes formaldehyde to formic acid and given off during the reaction, and must be allowed to immediately neutralizes it to sodium formate. Byproducts of escape. the reaction are sodium carbonate, sodium bicarbonate, carbon dioxide, and water. Methanol (present as a stabilizer The directions are designed to create a carefully controlled in most formalin solutions) is also oxidized to sodium reaction. Misuse of the product will increase the rate of heat formate. Phosphate buffer salts will remain unchanged. The production and could cause the solution to boil. The heat pH of the detoxified solution will range from 7.5 – 9.2. could cause thermal burns to anyone touching the drum. If foam-over occurs, see special instructions on page 2 “To Zinc compounds may interact with Formaldetox, making it prevent foaming with excessively dirty formalin or still bottom less efficient, and should be removed prior to detoxification. -
Chemical Compatibility Chart for Plazit-Polygal PLAZGAL SAN Sheets
Chemical Compatibility Chart for Plazit-Polygal PLAZGAL SAN Sheets This table gives an indication of the chemical resistance of PLAZGAL SAN sheets to a range of common chemicals at 20ºC. PLAZGAL SAN sheets can be safely used with most chemicals and components such as alkalis and diluted acids, as well as with aqueous salt solutions. However, SAN has limited resistance to alcohols, aliphatic hydrocarbons, oils and fats, and is not resistant to concentrated mineral acids, aromatic and/ or halogenated hydrocarbons, esters, ethers, ketones. Important note: the chemical stability of PLAZGAL SAN sheets depends on many factors such as the concentration of the chemical agent, internal stresses in the sheets and exposure temperature, in certain situations the sheets can develop stress cracks when even when exposed to chemicals to which SAN is usually resistant. The resistance of PLAZGAL SAN sheets is indicated in the table below. Chemical Concentration Compliance Chemical Concentration Compliance Aqua Regia Dissolved Brake fluids (ATE) Affected Acetic acid To 50% Not affected Butter Not affected Acetic acid 100% Affected Butyl acetate Affected Acetone Affected Butyric acid Affected Acetylsalicylic (soln.) Not affected Cadmium (soln.) Not affected acid bromide Allyl alcohol Affected Caffeine (soln.) Not affected Almond, bitter, Not affected Calcium bromide (soln.) Not affected oil of Calcium chloride (soln.) Not affected Aluminium (soln.) Not affected Calcium (solid) Not affected chloride hypochlorite Aluminium (soln.) Not affected Calcium (soln.) -
Sodium Formate Safety Data Sheet According to Federal Register / Vol
Sodium Formate Safety Data Sheet according to Federal Register / Vol. 77, No. 58 / Monday, March 26, 2012 / Rules and Regulations Date of issue: 06/01/2015 Revision date: 06/11/2018 Supersedes: 10/26/2015 Version: 2.0 SECTION 1: Identification 1.1. Identification Product form : Substance Substance name : Sodium Formate CAS-No. : 141-53-7 Formula : CHNaO2 1.2. Recommended use and restrictions on use Use of the substance/mixture : Chemical intermediate Reducing agent Preservative 1.3. Supplier Manufacturer Jost Chemical Co. 8150 Lackland Rd. Saint Louis, Missouri 63114 T 314-428-4300 - F 314-428-4366 [email protected] - www.jostchemical.com 1.4. Emergency telephone number Emergency number : For Hazardous Materials [or Dangerous Goods] Incident Spill, Leak, Fire, Exposure, or Accident Call CHEMTREC Day or Night United States and Canada: 1-800-424-9300 / +1 703-527-3887 Global: +1 703-741-5970 SECTION 2: Hazard(s) identification 2.1. Classification of the substance or mixture GHS-US classification Not classified 2.2. GHS Label elements, including precautionary statements GHS-US labeling No labeling applicable 2.3. Other hazards which do not result in classification No additional information available 2.4. Unknown acute toxicity (GHS US) Not applicable SECTION 3: Composition/Information on ingredients 3.1. Substances Substance type : Mono-constituent Name Product identifier % GHS-US classification Sodium Formate (CAS-No.) 141-53-7 100 Not classified (Main constituent) Full text of hazard classes and H-statements: see section 16 3.2. Mixtures Not applicable SECTION 4: First-aid measures 4.1. Description of first aid measures First-aid measures general : Check the vital functions. -
A Review of the Effect of Formic Acid and Its Salts on the Gastrointestinal
animals Review A Review of the Effect of Formic Acid and Its Salts on the Gastrointestinal Microbiota and Performance of Pigs Diana Luise * , Federico Correa , Paolo Bosi and Paolo Trevisi Department of Agricultural and Food Sciences (DISTAL), University of Bologna, 40127 Bologna, Italy; [email protected] (F.C.); [email protected] (P.B.); [email protected] (P.T.) * Correspondence: [email protected] Received: 20 April 2020; Accepted: 17 May 2020; Published: 19 May 2020 Simple Summary: Acidifiers, especially formic acid and its salts, have long been used for improving the gastrointestinal health and growth performance of pigs, especially piglets. Although, some biological mechanisms explaining their effects are already known, a lack of consensus is still reported on their effects on the gastrointestinal microbiome. The present review provides an overview and evaluation of the effects of formic acid and its salts on the gastrointestinal microbiota and on the growth performance of pigs. Abstract: Out of the alternatives to antibiotics and zinc oxide, organic acids, or simply acidifiers, play significant roles, especially in ensuring gut health and the growth performance of pigs. Regarding acidifiers, formic acid and its salts have shown very promising results in weaning, growing and finishing pigs. Although it is known that the main mechanisms by which acidifiers can improve livestock performance and health are related to the regulation of gastrointestinal pH, an improvement in intestinal digestibility and mineral utilization, and their antimicrobial properties against specific pathogens has been observed, while poor consensus remains in relation to the effect of acidifers on bacteria and the complex microbiome.