and in typical California fashion, it's complicated. [8] Butanone fires should be extinguished with carbon dioxide, dry agents, or alcohol-resistant foam. Because of its effectiveness as a solvent, MEK is especially valuable in formulating high solids coatings, which help to reduce emissions from coati… MEK = methyl ethyl ketone; this was banned in California in 2011. Acute (short-term) inhalation exposure to methyl ethyl ketone in humans results in irritation to the eyes, nose, and throat. Methyl ethyl ketone , MEK , 2-Butanone , Prolabo , Pháp , VWR , France Methyl ethyl ketone , MEK , 2-Butanone , Prolabo , Pháp , VWR , France. [7] The cumene process can be modified to produce phenol and a mixture of acetone and butanone instead of only phenol and acetone in the original. butanone; ethyl methyl ketone CAD - Chemical Agents Directive, Art. What are other names or identifying information for methyl ethyl ketone? I am not sure if pure methyl ethyl ketone is even available anymore. [8] It is an isomer of another solvent, tetrahydrofuran. [22], Emission of butanone was regulated in the US as a hazardous air pollutant, because it is a volatile organic compound contributing to the formation of tropospheric (ground-level) ozone. By the time the banned solvents are truly no longer available, HFC 43-10 mee and HCFC-225 ca/cb will have been evaluated by industry, and HFE-A should be commercially available. [19]:96 Methyl ethyl ketone is used as a solvent. The problem with wiping wood down with water is the water raises the grain and it then needs to be sanded again. I will not (nor ever have) used or recommended petroleum-based materials. [21], Butanone is listed as a Table II precursor under the United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic Substances. [8] It is moderately explosive, requiring only a small flame or spark to cause a vigorous reaction. CAS Number 78-93-3 Synonym(s) Butanone; 2-butanone; 3-butanone; Caswell No. Now I can't find it; the local orange big-box has a "MEK subsitute." Implications for cognitive rehabilitation and brain injury from exposure to Methyl Ethyl Ketone (MEK): a review. For a better experience, please enable JavaScript in your browser before proceeding. [7] It is partially soluble in water, and is commonly used as an industrial solvent. Apr 27, 2020 at 8:19 pm #3643522. Mineral spirits are not MEK, but California has clamped down on this as well.... and in typical California fashion, it's complicated. Product #047-5884-6. What is the WHMIS 1988 classification? 2(b)(i) - Hazardous Agents, Workplace Signs - minimum requirements & signs on containers and pipes, Waste Framework Directive, Annex III - Waste - Hazardous Properties, Fertiliser Regulation- Annex I, … Reactive with strong oxidizing materials, and will dissolve or soften some plastics. Methyl ethyl ketone (MEK) Revision Date 05/04/2018 Version 1.2 Print Date 05/17/2018 110000000947 Page 8 of 10 SAFETY DATA SHEET IATA UN 1193, Methyl Ethyl Ketone, 3, II When shipped in quantities greater than 5,000 lbs, RQ must be added to the shipping description. Though often considered an adhesive, it is actually functioning as a welding agent in this context. [20], As of 2010[update], some reviewers advised caution in using butanone because of reports of neuropsychological effects. Find here suppliers offering best price for 500ml bottle up to 200 L … Don't know what happened, whether OSHA, or EPA, or some other .gov busybody is responsible, but now it's nowhere to be found... and I've finally run out. You never said how much solvent you needed. Methyl Ethyl Ketone – MEK – C4H8O – Butanone. The “Ketone Peroxide” category of an organic peroxide calculated per §173.128(a)(4)(ii) to contain >9% available oxygen [§173.21(j)]. Butanone, also known as methyl ethyl ketone (MEK), is an organic compound with the formula CH3C(O)CH2CH3. Mineral spirits are not MEK, but California has clamped down on this as well. Klean-Strip Odorless Mineral Spirits for California, https://www.surfer.com/features/cleanupset_vol47_3/, VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. I wasn't sure if mineral spirits was more "effective". I don't know anything about MEK's ability to dissolve epoxies but please don't expose your self to the vapors of methyl ethyl ketone without a respirator capable of removing it from the air you breathe. Dimethylglyoxime can be prepared from butanone first by reaction with ethyl nitrite to give diacetyl monoxime followed by conversion to the dioxime:[15]. Butanone may be produced by oxidation of 2-butanol. There is a reason MEK was banned and then not, so no longer on the EPA 313 list of toxic chemicals that must be reported. [17] There are no long-term studies with animals breathing or drinking it,[18] and no studies for carcinogenicity in animals breathing or drinking it. Methyl Ethyl Ketone (MEK) is one of them. These included skeletal birth defects and low birth weight in mice, when they inhaled it at the highest dose tested (3000 ppm for 7 hours/day). Methyl ethyl ketone (also known as 2-butanone) is a man-made chemical that is also found in nature. Can you get solvents in Nevada? This was science decided not by scientists but a federal judge. There is some evidence that butanone can potentiate the toxicity of other solvents, in contrast to the calculation of mixed solvent exposures by simple addition of exposures. Supposedly banned because of VOC’s, but what we use instead – butane, propane, white gas, kerosene, etc. IDENTIFICATION Methyl Ethyl Ketone is a colorless liquid with a fragrant, mint-like odor. MEK also is used as an extraction medium for fats, oils, waxes and resins. [12] Unlike acetone, it forms an azeotrope with water,[13][14] making it useful for azeotropic distillation of moisture in certain applications. Where can methyl ethyl ketone be found and how is it used? It is partially soluble in water, and is commonly used as an industrial solvent. Methyl Ethyl Ketone MEK, Butanone, C4H8O is a solvent used in production of adhesives, printing inks, and API. It can be harmful to the eyes, skin, and if inhaled or swallowed. Kim Giang , Thanh Trì, Hà Nội Methyl ethyl ketone (MEK) is a colorless liquid with a sharp, sweet odor. They add to the list of banned chemicals from time to time, too. – are full of VOC’s too and no one’s banning them. Therefore, anesthesiologists have a simple opportunity to explore, investigate and docu.. has anyone ever tried using methyl ethyl ketone as an adhesive for styrene instead of buying those little bottles from Plastruct or Testors? It is used as a solvent and in making plastics, textiles, and paints. It's the same problem with waterborne finishes, they raise the grain so you have to do a lot more between the coats sanding and more coats that you would have to do with a solvent based finish. Butanone is the precursor to methyl ethyl ketone peroxide, which is a catalyst for some polymerization reactions such as crosslinking of unsaturated polyester resins. It's not that far and a five gallon can would probably last the diy a decade. 78-93-3 Methyl ethyl ketone (C 4 H 8 O or CH 3 CH 3 COCH 2 CH 3) is a colorless, flammable liquid with a sharp odor. Hey all, A few years ago I used to see MEK (Methyl Ethyl Keytone) in local hardware stores all the time. Methyl ethyl ketone: health effects and incident management Information on methyl ethyl ketone (MEK) (also known as 2-butanone), for use in responding to chemical incidents. [12], Butanone is a constituent of tobacco smoke. Within that, the South Coast Air Quality Management District (SCAQMD) has imposed even further restrictions, banning additional chemicals from most of Los Angeles, Orange, Riverside, and San Bernardino Counties. Similarly, the role of brain temperature in relation to cognition, sleep and delirium is also debated [2-4]. View on Vehicle $16.99. It is characterised as a colourless liquid that has a … Bán Methyl Ethyl Ketone Peroxide | Mek Peroxide | Methylethylketonehydroperoxide | Ethyl Methyl Ketone Peroxide | MEKP | Mepoxe. It is produced industrially on a large scale, but occurs in nature only in trace amounts. Similarly, is paint thinner illegal in California? - Methyl Ethyl Ketone –MEK là một dung môi hoà tan tốt cho vinyl copolymer,acrylics, nitrocellose, các nhựa tự nhiên, nhựa tổng hợp và cao su. In 2005, the US Environmental Protection Agency removed butanone from the list of hazardous air pollutants (HAPs). Either "Mineral Spirits" or "Paint Thinner" will do the job. Origin Of Hypothesis: The role of air flow across nasal passage and paranasal sinuses in relation to keeping the brain cool is often debated [1]. Wilhelm Neier, Guenter Strehlke "2-Butanone" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH, Weinheim, 2002. Xem đầy đủ mô tả sản phẩm. It's a fast evaporating and extremely flammable solvent, so it should be handled with care. The finish would be a problem. Nearly half of it … I have a bottle of citrus solvent. Butanone is an effective and common solvent[8] and is used in processes involving gums, resins, cellulose acetate and nitrocellulose coatings and in vinyl films. Mixture with 2-propanol will form explosive peroxides during storage. Come join the discussion about shop safety, wood, carpentry, lumber, finishing, tools, machinery, woodworking related topics, styles, scales, reviews, accessories, classifieds, and more! List of Precursors and Chemicals Frequently Used in the Illicit Manufacture of Narcotic Drugs and Psychotropic Substances Under International Control, National Pollutant Inventory: Methyl Ethyl Ketone Fact Sheet, https://en.wikipedia.org/w/index.php?title=Butanone&oldid=996640915, Articles with unsourced statements from March 2015, Chemical articles with multiple compound IDs, Multiple chemicals in an infobox that need indexing, Pages using collapsible list with both background and text-align in titlestyle, Articles containing unverified chemical infoboxes, Articles containing potentially dated statements from 2010, All articles containing potentially dated statements, Creative Commons Attribution-ShareAlike License, This page was last edited on 27 December 2020, at 20:47. It's a particularly toxic chemical, that's why it's hard to find. 569; Meetco; MEK; Methyl acetone; AI3-07540; 2-oxobutane; EPA Pesticide Code: 044103 According to the harmonised classification and labelling (ATP15) approved by the European Union, this substance is toxic if swallowed, may cause cancer, causes damage to organs, is harmful in contact with skin, causes serious eye damage, causes skin irritation, may cause an allergic skin reaction and may cause drowsiness or dizziness. Nó … methyl ethyl ketone is a colourless, volatile, highly flammable liquid with a fruity odour it is widely used as a solvent for protective coatings, paints, plastics, adhesives, printing inks and pesticides it may be released from industry but it is quickly broken down in the environment In the final step of the process, a hydrolysis produces the desired product hydrazine and regenerates the butanone. Ignition on contact with potassium tert-butoxide. 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