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5/4/1994· This cleaning process was performed once a week for a total work time of approximately four hours, using methyl ethyl ketone solvent and a propane torch. The nozzles, made of 0.375 inch copper tubing 6 inches long, were chucked in a vise. A wire was then used to loosen the butyl. Methyl ethyl ketone was used to loosen the butyl rubber materials.
Methyl Ethyl Ketone CAS RN: 78-93-3 Health Effects 0.2.1 SUMMARY OF EXPOSURE 0.2.1.1 ACUTE EXPOSURE A) USES: Ketones are organic compounds with a carbonyl group attached to a carbon atom. They are a natural by-product of fatty acid metabolism and have industrial uses as solvents, polymer precursors and in pharmaceuticals.
Methyl Ethyl Ketone Peroxide Method no.: 077 Matrix: Air Target concentration: 1.5 mg/m 3 Procedure: Air samples are collected by drawing known volumes of air through XAD-4 adsorbent tubes. The samples are desorbed with 2-propanol and analyzed by HPLC using postcolumn derivatization and an ultraviolet detector. Recommended air volume
29/9/2022· C 4 H 8 O 7, commonly known as 2-butanone, methyl acetone, ethyl methyl ketone, and MEK, is a ketone that contains both a methyl and an adjacent ethyl group. MEK is a white liquid that smells like acetone and has a musty odor. MEK is water insoluble, but soluble in alcohol, ether, and benzene. By its very nature, it is very flammable and volatile.
Methyl Ethyl Ketone. Methyl Ethyl Ketone also known as MEK, butanone, 2-butanone, butan-2-one, oxobutane, or methyl acetone is a clear volatile liquid that is soluble in water and has a mild, acetone odour and has the molecular formula C 4 H 8 O, CAS: 78-93-3. It has a flash point of -9°C and a specific gravity of 0.81.
OSHA Vaed PELs: Methyl ethyl ketone: 200 ppm TWA; 590 mg/m3 TWA; 300 ppm STEL; 885 mg/m3 STEL Personal Protective Equipment Eyes: Wear chemical goggles. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Following inhalation, methyl ethyl ketone has a biphasic elimination curve with an initial half-life of 30 minutes and a terminal half-life of 81 minutes. J) DIFFERENTIAL DIAGNOSIS 1) Other substances that may mimic ketone exposures include other irritant chemicals, other hydrocarbons, or neurotoxic substances.
29/9/2022· C 4 H 8 O 7, commonly known as 2-butanone, methyl acetone, ethyl methyl ketone, and MEK, is a ketone that contains both a methyl and an adjacent ethyl group. MEK is a white liquid that smells like acetone and has a musty odor. MEK is water insoluble, but soluble in alcohol, ether, and benzene. By its very nature, it is very flammable and volatile.
14/11/2022· What are the potential health effects of methyl ethyl ketone? Main Routes of Exposure: Inhalation. Skin contact. Eye contact. Inhalation: Can irritate the nose and throat. At high concentrations: can harm the nervous system. Symptoms may include headache, nausea, dizziness, drowsiness and confusion. A severe exposure can cause unconsciousness.
5/4/1994· This cleaning process was performed once a week for a total work time of approximately four hours, using methyl ethyl ketone solvent and a propane torch. The nozzles, made of 0.375 inch copper tubing 6 inches long, were chucked in a vise. A wire was then used to loosen the butyl. Methyl ethyl ketone was used to loosen the butyl rubber materials.
Methyl ethyl ketone is a colorless volatile liquid that is soluble in water. (2) The odor threshold for methyl ethyl ketone is 5.4 parts per million (ppm), with an acetone-like odor reported. (3) The chemical formula for methyl ethyl ketone is C4H8O and the molecular
Methyl ethyl ketone (MEK) CAS No: 78-93-3 NOTE: (1) Efficacy of Medical Tests has not been evaluated. (2) NIOSH references include diagnostic, screening, and other tests. (3) OSHA mandated medical tests, if any, are provided in BOLD on a yellow background. (4) This HTML page was created from DHHS (NIOSH) Publiion No. 2005-110. Deceer 2004.
13/4/2009· Product Name Methyl Ethyl Ketone No. : M209-1, M209-20, M209-200, M209-4, M209-500, M209S-4, M209FB-19, This chemical is considered hazardous by the 2012 OSHA Hazard Communiion Standard (29 CFR 1910.1200) Label Elements Danger
Wipe with acetone or methyl ethyl ketone. 2. Immerse in a chromic acid solution ( Table 8.3) for 10–20 seconds at room temperature (20°C–30°C). Dissolve the potassium dichromate in clear tap water; then add the sulfuric acid in increments of about 200 g, stirring after each addition. Table 8.3. Composition of Etching Solution for Acetal Homopolymer
14/11/2022· What are the potential health effects of methyl ethyl ketone? Main Routes of Exposure: Inhalation. Skin contact. Eye contact. Inhalation: Can irritate the nose and throat. At high concentrations: can harm the nervous system. Symptoms may include headache, nausea, dizziness, drowsiness and confusion. A severe exposure can cause unconsciousness.
13/3/2013· Methyl Ethyl Ketone, also known as Butanone, is an organic compound that has a sweet aroma, similar to butterscotch. It is produced in bulk for use in industry as a solvent. It is used in processes involving gums, resins, cellulose acetate and nitrocellulose coatings and in vinyl films. It has similar solvent properties to acetone but boils at
5/4/1994· This cleaning process was performed once a week for a total work time of approximately four hours, using methyl ethyl ketone solvent and a propane torch. The nozzles, made of 0.375 inch copper tubing 6 inches long, were chucked in a vise. A wire was then used to loosen the butyl. Methyl ethyl ketone was used to loosen the butyl rubber materials.
Methyl ethyl ketone TWA: 200 ppm STEL: 300 ppm OSHA - Occupational Safety and Health Administration Hygiene Measures Handle in accordance with good industrial hygiene and safety practice. (Vaed) TWA: 200 ppm (Vaed) TWA: 590 mg/m3 3 3 3
METHYL ETHYL KETONE TWA 590 mg/m3 200 ppm N/A OSHA Z1 METHYL ETHYL KETONE STEL 300 ppm N/A ACGIH METHYL ETHYL KETONE TWA 200 ppm N/A ACGIH Page 6 of 15 MSDS: MEK NOTE: Limits/standards shown for The level of
OSHA comments from the January 19, 1989 Final Rule on Air Contaminants Project extracted from 54FR2332 et. seq. This rule was remanded by the U.S. Circuit Court of Appeals and the limits are not currently in force. CAS: 110-12-3; Chemical Formula: CH 3 COCH 2 CH 2 CH(CH 3) 2
Methyl Ethyl Ketone Peroxide Method no.: 077 Matrix: Air Target concentration: 1.5 mg/m 3 Procedure: Air samples are collected by drawing known volumes of air through XAD-4 adsorbent tubes. The samples are desorbed with 2-propanol and analyzed by HPLC using postcolumn derivatization and an ultraviolet detector. Recommended air volume
OSHA Standards Skin / Eye / Resp. Irritants Other Preventive Measures Toxicity Summary Range of Toxicity Non-Human Toxicity Values Ecotoxicity Values Soil Adsorption / Mobility Volatilization Methyl Ethyl Ketone CAS RN: 78-93-3 DOT Emergency F
Methyl Ethyl Ketone CAS RN: 78-93-3 Storage Conditions Methyl ethyl ketone must be stored to avoid contact with strong oxidizers (such as chlorine, bromine, and fluorine) since violent reactions may occur. Store in tightly closed containers in a cool, well ventilated area away from sources of heat, sparks, or flame.
Methyl Ethyl Ketone C4H8O CID 6569 - structure, chemical names, physical and chemical properties, classifiion, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. National Institutes of Health PubChem
For methyl ethyl ketone (USEPA/OPP Pesticide Code: 044103) there are 0 labels match. /SRP: Not registered for current use in the U.S., but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses./
14/10/2021· Netherlands - Butanone (Methyl Ethyl Ketone) - Market Analysis, Forecast, Size, Trends and Insights Update: COVID-19 Impact $499 $2 390 Basic Edition (Single Report) $1995 $3 990 Professional Edition (Single Report) $3400 / year $7 990 Unlimited Annual )
Methyl ethyl ketone TWA: 200 ppm STEL: 300 ppm OSHA - Occupational Safety and Health Administration Hygiene Measures Handle in accordance with good industrial hygiene and safety practice. (Vaed) TWA: 200 ppm (Vaed) TWA: 590 mg/m3 3 3 3
13/3/2013· Methyl Ethyl Ketone, also known as Butanone, is an organic compound that has a sweet aroma, similar to butterscotch. It is produced in bulk for use in industry as a solvent. It is used in processes involving gums, resins, cellulose …
FACTS Online chemical incident safety database Quality: * * * * Year: 2000 Country: ROK Activity: PROCESSING Loion: CHEMICAL FACTORY Chemicals: METHYL ETHYL KETONE PEROXIDE, SULPHURIC ACID (SFA), METHYL ETHYL KETONE (MEK
Exposure Summary. Methyl ethyl ketone''s production and use as a solvent for coatings, resins, paint removers, pharmaceuticals, adhesives and cements and as an intermediate in organic synthesis may result in its release to the environment through various waste streams. Methyl ethyl ketone can be released directly to the atmosphere, via
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