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Alcohols Combined 1405
ALCOHOLS COMBINED 1405 Formulas: Table 1 MW: Table 1 CAS: Table 2 RTECS: Table 2 METHOD: 1405, Issue 1 EVALUATION: PARTIAL Issue 1: 15 March 2003 OSHA : Table 2 PROPERTIES: Table 1 NIOSH: Table 2 ACGIH: Table 2 COMPOUNDS: (1) n-butyl alcohol (4) n-propyl alcohol (7) cyclohexanol (2) sec-butyl alcohol (5) allyl alcohol (8) isoamyl alcohol (3) isobutyl alcohol (6) diacetone alcohol (9) methyl isobutyl carbinol SYNONYMS: See Table 3. SAMPLING MEASUREMENT SAMPLER: SOLID SORBENT TUBE TECHNIQUE: GAS CHROMATOGRAPHY, FID (Coconut shell charcoal, 100 mg/50 mg) ANALYTE: Compounds above FLOW RATE: 0.01 to 0.2 L/min DESORPTION: 1 mL 5% 2-propanol in CS2 Compounds: (1-3 ) (4-9) VOL-MIN: 2 L 1 L INJECTION -MAX: 10 L 10 L VOLUME: 1 µL SHIPMENT: Routine TEMPERATURE -INJECTION: 220 °C SAMPLE -DETECTOR: 250 - 300 °C STABILITY: See Evaluation of Method. -COLUMN: 35 °C (7 minutes), to 60 °C at 5 °C/minute, hold 5 minutes, up to BLANKS: 2 to 10 field blanks per set 120 °C at 10 °C /minute, hold 3 minutes. CARRIER GAS: He, 4 mL/min ACCURACY COLUMN: Capillary, fused silica, 30 m x 0.32-mm RANGE STUDIED: Not studied [1, 2]. ID; 0.5 µm film polyethylene glycol, DB- wax or equivalent BIAS: Not determined CALIBRATION: Solutions of analyte in eluent (internal OVERALL standard optional) PRECISION (Ö ): Not determined rT RANGE: See EVALUATION OF METHOD. ACCURACY: Not determined ESTIMATED LOD: 1 µg each analyte per sample PRECISION: See EVALUATION OF METHOD. APPLICABILITY: This method may be used to determine two or more of the specified analytes simultaneously. -
Chemicals Used for Chemical Manufacturing Page 1 of 2
Chemicals used for Chemical Manufacturing Page 1 of 2 Acetic Acid (Glacial, 56%) Glycol Ether PMA Acetone Glycol Ether PNB Acrylic Acid Glycol Ether PNP Activated Carbon Glycol Ether TPM Adipic Acid Glycols Aloe Vera Grease Aluminum Stearate Gum Arabic Aluminum Sulfate Heat Transfer Fluids Amino Acid Heptane Ammonium Acetate Hexane Ammonium Bicarbonate Hydrazine Hydrate Ammonium Bifluoride Hydrochloric Acid (Muriatic) Ammonium Chloride Hydrogen Peroxide Ammonium Citrate Hydroquinone Ammonium Hydroxide Hydroxylamine Sulfate Ammonium Laureth Sulfate Ice Melter Ammonium Lauryl Sulfate Imidazole Ammonium Nitrate Isobutyl Acetate Ammonium Persulfate Isobutyl Alcohol Ammonium Silicofluoride Calcium Stearate Dipropylene Glycol Isopropanolamine Ammonium Sulfate Carboxymethylcellulose Disodium Phosphate Isopropyl Acetate Antifoams Caustic Potash D'Limonene Isopropyl Alcohol Antifreeze Caustic Soda (All Grades) Dodecylbenzene Sulfonic Acid Isopropyl Myristate Antimicrobials Caustic Soda (Beads, Prills) (DDBSA) Isopropyl Palmitate Antimony Oxide Cetyl Alcohol Dowfrost Itaconic Acid Aqua Ammonia Cetyl Palmitate Dowfrost HD Jojoba Oil Ascorbic Acid Chlorine, Granular Dowtherm SR-1 Keratin Barium Carbonate Chloroform Dowtherm 4000 Lactic Acid Barium Chloride Chromic Acid EDTA Lanolin Beeswax Citric Acid (Dry and Liquid) EDTA Plus Lauric Acid Bentonite Coal Epsom Salt Lauryl Alcohol Benzaldehyde Cocamide DEA Ethyl Acetate Lecithin Benzoic Acid Copper Nitrate Ethyl Alcohol (Denatured) Lime Benzyl Alcohol Copper Sulfate Ethylene Glycol Linoleic Acid Bicarbonate -
Ammonium Persulfate
SAFETY DATA SHEET Ammonium Persulfate Section 1. Identification GHS product identifier : Ammonium Persulfate Code : 76322 Other means of : ammonium persulphate; Peroxydisulfuric acid, diammonium salt; diammonium identification peroxodisulfate; Diammonium persulfate Supplier/Manufacturer : 3420 Central Expressway, Santa Clara CA 95051 In case of emergency : Chemtrec: 1 800 424 9300 Outside USA & Canada: +1 703 527 3887 Section 2. Hazards identification OSHA/HCS status : This material is considered hazardous by the OSHA Hazard Communication Standard (29 CFR 1910.1200). Classification of the : OXIDIZING SOLIDS - Category 3 substance or mixture ACUTE TOXICITY (oral) - Category 4 SKIN CORROSION/IRRITATION - Category 2 SERIOUS EYE DAMAGE/ EYE IRRITATION - Category 2 RESPIRATORY SENSITIZATION - Category 1 SKIN SENSITIZATION - Category 1 SPECIFIC TARGET ORGAN TOXICITY (SINGLE EXPOSURE) (Respiratory tract irritation) - Category 3 GHS label elements Hazard pictograms : Signal word : Danger Hazard statements : May intensify fire; oxidizer. Harmful if swallowed. Causes serious eye irritation. Causes skin irritation. May cause allergy or asthma symptoms or breathing difficulties if inhaled. May cause an allergic skin reaction. May cause respiratory irritation. Precautionary statements Prevention : Wear protective gloves. Wear eye or face protection. In case of inadequate ventilation wear respiratory protection. Keep away from heat. - No smoking. Keep away from clothing, incompatible materials and combustible materials. Take any precaution to avoid mixing with combustibles and other incompatible materials. Use only outdoors or in a well-ventilated area. Avoid breathing dust. Do not eat, drink or smoke when using this product. Wash hands thoroughly after handling. Contaminated work clothing should not be allowed out of the workplace. Response : IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. -
Enlarging Knowledge on Lager Beer Volatile Metabolites Using Multidimensional Gas Chromatography
foods Article Enlarging Knowledge on Lager Beer Volatile Metabolites Using Multidimensional Gas Chromatography Cátia Martins 1 , Tiago Brandão 2, Adelaide Almeida 3 and Sílvia M. Rocha 1,* 1 Departamento de Química & LAQV-REQUIMTE, Universidade de Aveiro, Campus Universitário Santiago, 3810-193 Aveiro, Portugal; [email protected] 2 Super Bock Group, Rua do Mosteiro, 4465-703 Leça do Balio, Portugal; [email protected] 3 Departamento de Biologia & CESAM, Universidade de Aveiro, Campus Universitário Santiago, 3810-193 Aveiro, Portugal; [email protected] * Correspondence: [email protected]; Tel.: +351-234-401-524 Received: 30 July 2020; Accepted: 6 September 2020; Published: 11 September 2020 Abstract: Foodomics, emergent field of metabolomics, has been applied to study food system processes, and it may be useful to understand sensorial food properties, among others, through foods metabolites profiling. Thus, as beer volatile components represent the major contributors for beer overall and peculiar aroma properties, this work intends to perform an in-depth profiling of lager beer volatile metabolites and to generate new data that may contribute for molecules’ identification, by using multidimensional gas chromatography. A set of lager beers were used as case-study, and 329 volatile metabolites were determined, distributed over 8 chemical families: acids, alcohols, esters, monoterpenic compounds, norisoprenoids, sesquiterpenic compounds, sulfur compounds, and volatile phenols. From these, 96 compounds are reported for the first time in the lager beer volatile composition. Around half of them were common to all beers under study. Clustering analysis allowed a beer typing according to production system: macro- and microbrewer beers. Monoterpenic and sesquiterpenic compounds were the chemical families that showed wide range of chemical structures, which may contribute for the samples’ peculiar aroma characteristics. -
Toxicological Profile for 2-Butanone Released for Public Comment in May 2019
Toxicological Profile for 2-Butanone October 2020 2-BUTANONE ii DISCLAIMER Use of trade names is for identification only and does not imply endorsement by the Agency for Toxic Substances and Disease Registry, the Public Health Service, or the U.S. Department of Health and Human Services. 2-BUTANONE iii FOREWORD This toxicological profile is prepared in accordance with guidelines* developed by the Agency for Toxic Substances and Disease Registry (ATSDR) and the Environmental Protection Agency (EPA). The original guidelines were published in the Federal Register on April 17, 1987. Each profile will be revised and republished as necessary. The ATSDR toxicological profile succinctly characterizes the toxicologic and adverse health effects information for these toxic substances described therein. Each peer-reviewed profile identifies and reviews the key literature that describes a substance's toxicologic properties. Other pertinent literature is also presented, but is described in less detail than the key studies. The profile is not intended to be an exhaustive document; however, more comprehensive sources of specialty information are referenced. The focus of the profiles is on health and toxicologic information; therefore, each toxicological profile begins with a relevance to public health discussion which would allow a public health professional to make a real-time determination of whether the presence of a particular substance in the environment poses a potential threat to human health. The adequacy of information to determine a substance's -
US EPA Inert (Other) Pesticide Ingredients
U.S. Environmental Protection Agency Office of Pesticide Programs List of Inert Pesticide Ingredients List 3 - Inerts of unknown toxicity - By Chemical Name UpdatedAugust 2004 Inert Ingredients Ordered Alphabetically by Chemical Name - List 3 Updated August 2004 CAS PREFIX NAME List No. 6798-76-1 Abietic acid, zinc salt 3 14351-66-7 Abietic acids, sodium salts 3 123-86-4 Acetic acid, butyl ester 3 108419-35-8 Acetic acid, C11-14 branched, alkyl ester 3 90438-79-2 Acetic acid, C6-8-branched alkyl esters 3 108419-32-5 Acetic acid, C7-9 branched, alkyl ester C8-rich 3 2016-56-0 Acetic acid, dodecylamine salt 3 110-19-0 Acetic acid, isobutyl ester 3 141-97-9 Acetoacetic acid, ethyl ester 3 93-08-3 2'- Acetonaphthone 3 67-64-1 Acetone 3 828-00-2 6- Acetoxy-2,4-dimethyl-m-dioxane 3 32388-55-9 Acetyl cedrene 3 1506-02-1 6- Acetyl-1,1,2,4,4,7-hexamethyl tetralin 3 21145-77-7 Acetyl-1,1,3,4,4,6-hexamethyltetralin 3 61788-48-5 Acetylated lanolin 3 74-86-2 Acetylene 3 141754-64-5 Acrylic acid, isopropanol telomer, ammonium salt 3 25136-75-8 Acrylic acid, polymer with acrylamide and diallyldimethylam 3 25084-90-6 Acrylic acid, t-butyl ester, polymer with ethylene 3 25036-25-3 Acrylonitrile-methyl methacrylate-vinylidene chloride copoly 3 1406-16-2 Activated ergosterol 3 124-04-9 Adipic acid 3 9010-89-3 Adipic acid, polymer with diethylene glycol 3 9002-18-0 Agar 3 61791-56-8 beta- Alanine, N-(2-carboxyethyl)-, N-tallow alkyl derivs., disodium3 14960-06-6 beta- Alanine, N-(2-carboxyethyl)-N-dodecyl-, monosodium salt 3 Alanine, N-coco alkyl derivs. -
Acrylamide Polymerization — a Practical Approach
electrophoresis tech note 1156 Acrylamide Polymerization — A Practical Approach Paul Menter, Bio-Rad Laboratories, 2000 Alfred Nobel Drive, Polyacrylamide Gel Polymerization Hercules, CA 94547 USA AcrylamideBis Polyacrylamide Introduction The unparalleled resolution and flexibility possible with CH2 CH + CH2 CH CH2 CH CH2 CH CH2 CH polyacrylamide gel electrophoresis (PAGE) has led to its CO CO CO CO CO widespread use for the separation of proteins and nucleic NH2 NH NH2 NH2 NH acids. Gel porosity can be varied over a wide range to meet CH2 CH2 specific separation requirements. Electrophoresis gels and NH NH NH NH buffers can be chosen to provide separation on the basis of CO 2 2 CO CO C O charge, size, or a combination of charge and size. CH2 CH CH2 CH CH2 CH CH2 CH The key to mastering this powerful technique lies in the polymerization process itself. By understanding the important Purity of Gel-Forming Reagents parameters, and following a few simple guidelines, the novice Acrylamide can become proficient and the experienced user can optimize Gel-forming reagents include the monomers, acrylamide and bis, separations even further. as well as the initiators, usually ammonium persulfate and TEMED or, occasionally, riboflavin and TEMED. On a molar This bulletin takes a practical approach to the preparation of basis, acrylamide is by far the most abundant component in the polyacrylamide gels. Its purpose is to provide the information monomer solution. As a result, acrylamide may be the primary required to achieve reproducible, controllable polymerization. source of interfering contaminants (Dirksen and Chrambach For those users interested only in the “bare essentials,” the 1972). -
Enhanced Conversion Oflactose to Glycerol by Kluyveromyces Fragilis
APPLIED AND ENVIRONMENTAL MICROBIOLOGY, Mar. 1989, p. 573-578 Vol. 55, No. 3 0099-2240/89/030573-06$02.00/0 Copyright C) 1989, American Society for Microbiology Enhanced Conversion of Lactose to Glycerol by Kluyveromyces fragilis Utilizing Whey Permeate as a Substrate WHEAMEI JENQ,1 RAY A. SPECKMAN,' RICHARD E. CRANG,2* AND MARVIN P. STEINBERG1 Department of Food Science, 1304 West Pennsylvania Avenue,' and School of Life Sciences, 505 South Goodwin Avenue,2 University ofIllinois, Urbana, Illinois 61801 Received 6 June 1988/Accepted 12 December 1988 Kluyveromycesfragilis (CBS 397) is a nonhalophilic yeast which is capable of lactose utilization from whey permeate and high glycerol production under anaerobic growth conditions. However, the optimum yields of glycerol (11.6 mg/ml of whey permeate medium) obtained in this study occurred only in the presence of 1% Na2SO3 as a steering agent. The use of other concentrations of Na2SO3, as well as 5% NaCl and 1% ascorbic acid, had no or detrimental effects on cell growth, lactose utilization, and glycerol production. Glycerol yields were greater in cultures grown from a light inoculum of K. fragilis than in cultures in which a resuspended mass of cells was introduced into the medium. The results of this study suggest that this strain of K. fragilis may be useful commercially in the utilization of cheese whey lactose and the concomitant production of glycerol. Cheese whey represents a commercial by-product gener- troleum derivatives, which is less expensive than processing ated in such massive quantities that its safe disposal is a by sugar fermentation. major problem for many municipal sewage treatment plants. -
Supporting Information
Supporting Information Section 1 Components of DCM based coating strippers Table 1. Composition of Klean Strip Premium. CAS # Components Concentration 75-09-2 Dichloromethane 70.0-95.0% 67-56-1 Methanol < 5.0% 127087-87-0 Poly(oxy-1,2-ethandiyl) < 5.0% 124-38-9 Carbon dioxide < 5.0% Table 2. Composition of Klean Strip X. CAS # Components Concentration 75-09-2 Dichloromethane 30.0 – 40.0% 67-56-1 Methanol 15.0 – 26.0% 67-64-1 Acetone < 10.0% 1330-20-7 Xylene < 10.0% 108-88-3 Toluene < 10.0% 100-41-4 Ethylbenzene < 5.0% 64-17-5 Ethyl alcohol < 5.0% 67-63-0 Isopropyl alcohol < 5.0% Section 2 Sample preparation for the dwell time test As Figure S1 shows, a gasket was pasted on the conformal coating surface and a sheet of parafilm attached to the back of the printed circuit board to avoid solvent leakage dur- ing the dwell test. Figure 1. Sample preparation for the dwell time test. Section 3 Thickness measurement of coated PCBs Materials and Equipment Printed circuit boards (PCB), acrylic conformal coating, tape, Dektak stylus profiler (Bruker, Arizona, USA). Methods A piece of tape was attached on a PCB before coating. The coating was applied on the PCB using the same method as dip coating in the dwell time test. The PCB was sta- tioned and dried at room temperature for over 24 hours. The tape was then torn out to create a coating step. The PCB was fixed on the detection table using tapes. The stylus scanned from sub- strate to coated area. -
The Mechanism and Kinetics of Methyl Isobutyl Ketone Synthesis from Acetone Over Ion- Exchanged Hydroxyapatite
Lawrence Berkeley National Laboratory Recent Work Title The mechanism and kinetics of methyl isobutyl ketone synthesis from acetone over ion- exchanged hydroxyapatite Permalink https://escholarship.org/uc/item/4hq4p42d Authors Ho, CR Zheng, S Shylesh, S et al. Publication Date 2018-09-01 DOI 10.1016/j.jcat.2018.07.005 Peer reviewed eScholarship.org Powered by the California Digital Library University of California Journal of Catalysis 365 (2018) 174–183 Contents lists available at ScienceDirect Journal of Catalysis journal homepage: www.elsevier.com/locate/jcat The mechanism and kinetics of methyl isobutyl ketone synthesis from acetone over ion-exchanged hydroxyapatite ⇑ Christopher R. Ho a,b, Steven Zheng a, Sankaranarayanapillai Shylesh a,b, Alexis T. Bell a,b, a Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA 94720-1462, United States b Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, United States article info abstract Article history: The synthesis of methyl isobutyl ketone (MIBK) can be carried out by the condensation of acetone in the Received 9 May 2018 presence of hydrogen over a supported metal catalyst. Previous studies have shown that hydroxyapatite Revised 26 June 2018 is an excellent catalyst for condensation reactions. The present investigation was undertaken in order to Accepted 2 July 2018 elucidate the reaction mechanism and site requirements for acetone coupling to MIBK over a physical Available online 18 July 2018 mixture of hydroxyapatite and Pd/SiO2. The reaction is found to proceed by consecutive aldol addition to form diacetone alcohol (DAA), dehydration of DAA to mesityl oxide (MO), and hydrogenation of MO Keywords: to MIBK. -
Sodium Chlorite Neutralization
® Basic Chemicals Sodium Chlorite Neutralization Introduction that this reaction is exothermic and liberates a If sodium chlorite is spilled or becomes a waste, significant amount of heat (H). it must be disposed of in accordance with local, state, and Federal regulations by a NPDES NaClO2 + 2Na2SO3 2Na2SO4 + NaCl permitted out-fall or in a permitted hazardous 90.45g + 2(126.04g) 2(142.04g) + 58.44g waste treatment, storage, and disposal facility. H = -168 kcal/mole NaClO2 Due to the reactivity of sodium chlorite, neutralization for disposal purposes should be For example, when starting with a 5% NaClO2 avoided whenever possible. Where permitted, solution, the heat generated from this reaction the preferred method for handling sodium could theoretically raise the temperature of the chlorite spills and waste is by dilution, as solution by 81C (146F). Adequate dilution, discussed in the OxyChem Safety Data Sheet thorough mixing and a slow rate of reaction are (SDS) for sodium chlorite in Section 6, important factors in controlling the temperature (Accidental Release Measures). Sodium chlorite increase (T). neutralization procedures must be carried out only by properly trained personnel wearing Procedure appropriate protective equipment. The complete neutralization procedure involves three sequential steps: dilution, chlorite Reaction Considerations reduction, and alkali neutralization. The dilution If a specific situation requires sodium chlorite to step lowers the strength of the sodium chlorite be neutralized, the chlorite must first be reduced solution to 5% or less; the reduction step reacts by a reaction with sodium sulfite. The use of the diluted chlorite solution with sodium sulfite to sodium sulfite is recommended over other produce a sulfate solution, and the neutralization reducing agents such as sodium thiosulfate step reduces the pH of the alkaline sulfate (Na2S2O3), sodium bisulfite (NaHSO3), and solution from approximately 12 to 4-5. -
Methyl Isobutyl Ketone
Issued: Data Sheet 19-Sep-2005 Product Name Methyl isobutyl ketone Product Code S1215 Asia Pacific Product Category Ketones CAS Registry 108-10-1 Number EINECS Number 203-550-1 Alternate Name 2-methyl-2-pentanone, hexanone, MIBK Description Methyl isobutyl ketone, MIBK, a medium boiling ketone is a stable water-white liquid. Like acetone and MEK, it displays strong solvent power for cellulose esters vinyl polymers and copolymers, and most natural and synthetic resins. MIBK is a medium evaporating solvent with excellent solvency characteristics and with a high tolerance for hydrocarbon diluents. Sales Property Unit Min Max Method Specification Purity % m/m 99.5 ASTM D3329 Water % m/m 0.05 ASTM D1364 Methyl isobutyl carbinol mg/kg 1000 ASTM D3329 Mesityloxide + mg/kg 1000 ASTM D3329 Isomesityloxide Dimethylketone mg/kg 1000 ASTM D3329 Appearance Cl & FFSM ASTM D4176 Color Pt-Co 10 ASTM D1209 Density @20°C g/mL 0.799 0.802 ASTM D4052 (4) Refractive Index @20°C 1.395 1.397 ASTM D1218 (4) Acidity as Acetic acid % m/m 0.005 ASTM D1613 Non Volatile Matter g/100mL 0.002 ASTM D1353 Distillation, IBP °C 114.0 ASTM D1078 (4) Distillation, DP °C 117.0 ASTM D1078 (4) (1) Guaranteed, (2) Typical, (3) Report Only, (4) Guaranteed spec with typical result Product as produced complies with DIN 53247, ASTM D 1153 and ACS 9th edition. Typical Properties Property Unit Method Value Density @20°C kg/L ASTM D4052 0.800 Cubic Expansion Coefficient @20°C (10^-4)/°C - 12 Refractive Index @20°C - ASTM D1218 1.396 Distillation, IBP °C ASTM D1078 114.0 Distillation,