The principal route of exposure for the general population to methylene chloride is by inhalation. Methylene chloride is absorbed readily after inhalation and ingestion. Environmental protection agency epa published a signed final rule that prohibits the manufacture including import, processing, and distribution of methylene chloride for consumer paint and coating removal. Methylene chloride is used in paint stripper and degreasers. Paintstripping formulations usually contain about 80% by weight of methylene chloride, often in combination with methanol. Resources to protect workers from methylene chloride. Mailing address 1101 mail service center raleigh, nc 276991101. It became an industrial chemical of importance during the second world war. Methylene chloride, also known as dichloromethane or dcm, is a solvent used in a range of products. Chemical identity and chemical physical properties of methylene chloride characteristicproperty data reference cas no. Reprinted with permission from dcreport wendy hartley, whose son kevin died at age 21 after using a toxic paint stripper, met with exepa chief scott pruitt two years ago to urge him to ban a chemical in the stripper that has killed people since 1947 but when the epa evaluated the chemical, methylene chloride, under the toxic substances control act, the agency decided the chemical didnt. Methylene chloride reacts violently in the presence of alkali or alkaline earth metals and will hydrolyze to formaldehyde in the presence of an aqueous base. Visit chemicalbook to find more dcm 75092 information like chemical properties,structure,melting point,boiling point,density,molecular formula,molecular. Marwieze chemicals methylene chloride hplc 1 gallon.
Methylene chloride is a widely used industrial chemical with reported atmospheric emissions of more than 126 million pounds annually in the united states. It is one of the simplest chlorinated hydrocarbons, made by substituting two chlorine atoms for two hydrogen atoms on the methane molecule formula ch 2 cl 2. Methylene chloride was also used in metal cleaning, polyurethane foam production, in aerosol products formulation, adhesives where it served as a replacement for tca, and as an extraction solvent e. Chemical waste generators must also consult local, regional, and national hazardous waste regulations to ensure complete and accurate classification. Disposal considerations waste disposal methods chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. Although it is not miscible with water, it is polar, and miscible with many organic solvents.
According to data compiled by the group safer chemicals, healthy families, methylene chloride has been linked to at least 64 deaths since 1980. Methylene chloride meth, also known as dichloro methane, is a colorless, volatile nonflammable liquid with a penetrating, etherlike odor. Methylene chloride is metabolized slowly to carbon monoxide. Rule 102 definitions volatile organic compounds voc. Methylene chloride was first prepared by regnault in 1840 by the chlorination of methyl chloride in sunlight.
Will senator udall accept the blame for methylene chloride. Methylene chloride an overview sciencedirect topics. The vapor pressure for methylene chloride is 349 mmhg at 20 c. Methylene chloride safer chemicals, healthy families. One major side effect of drinking decaf coffee eat this not. Inside youll find storage recommendations, chemical compatibility charts, and. This product is not flammable at ambient temperatures and atmospheric pressure. However, this method also results in more highly chlorinated compounds such as methylene chloride and chloroform and is usually only used. Methylene chloride environmental health and safety. In an investigation, the clean label project detected the chemical in major brands such as maxwell house decaffeinated the original roast coffee and costcos kirkland signature decaffeinated dark roast coffee. Structure, properties, spectra, suppliers and links for. Methylene chloride has been linked to cancer, cognitive impairment, and asphyxiation. Pon pure chemicals group chennai, tamilnadu, india 24 hour health. Methylene chloride tech grade 1 gallon stellar chemical ips weldon 3 acrylic plastic cement with weldon applicator bottle with needle, 4 oz can, clear 4.
Alkylation reactions occur at both functions, thus disubstitutions result. This section applies to all occupational exposures to methylene chloride mc, chemical abstracts service registry number 75092, in general industry, construction and shipyard employment. Dichloromethane ch2cl2 cid 6344 structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety. Methylene chloride released to the atmosphere readily disperses, so air contaminated by point sources is less of a hazard than contamination of the groundwater. Persons living near methylene chloride productionanduse facilities or near hazardous waste sites that store methylene chloride may have increased risk of exposure from chemical emissions. Beck and her epa colleagues complied with the schedule udall helped set up, which is impressive given the slow nature of bureaucracy. This structure is also available as a 2d mol file or as a computed 3d sd file.
Getting this deadly chemical out of consumers hands is a step in the right direction a step that was started by retailers nationwide. Dichloromethane dcm or methylene chloride is an organochloride compound with the formula c h 2 cl 2. Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on ftir instruments or in other chemical environments. It is moderately soluble in water as well as in most organic solvents namely. Workers are at risk when they inhale methylene chloride vapors and when it comes in contact with their skin. Methylene chloride, also known as dichloromethane and dcm, is a volatile and high production volume hpv chemical that is used as a solvent in a wide range of.
Numerous people have died from exposure to methylene chloride. Spectrum chemical has exactly the form and grade of methylene chloride for your lab needs. If medical advice is needed, have product container or label at hand. Many liquid paint strippers and solvents contain a toxic chemical called methylene chloride. It is a volatile liquid with a sweet scent and mostly used as a solvent. Integrating a missing element into medical education 1995. Chemicalbook provide chemical industry users with methylene chloride boiling point melting point,methylene chloride density msds formula use,if you also need to methylene chloride other information,welcome to contact us. Chemical summary for methylene chloride dichloromethane.
Spectrum has been proudly serving our scientific community for over 45 years. Chemicalbook provide chemical industry users with tertbutyldimethylsilyl chloride boiling point melting point,tertbutyldimethylsilyl chloride density msds. Methylene chloride is a combustible liquid, but its vapor is flammable only when present in relatively high concentrations 14% to 22% in air. This colorless, volatile liquid with a chloroformlike, sweet odour is widely used as a solvent. Spectrum chemical mfg corp 769 jersey avenue new brunswick, nj 08901 phone 732. This chemical inventory is oshas premier onestop shop for occupational chemical information. Chemical name chemical abstract service cas number acetaldehyde 75070 acetamide 60355 acetonitrile 75058 acetophenone 98862 2acetylaminofluorene 53963 acrolein 107028 acrylamide 79061 acrylic acid 79107 acrylonitrile 1071 allyl chloride 107051 4aminobiphenyl 92671 aniline 62533 oanisidine 90040. Methylene chloride, an organic compound, is also known as dcm or dichloromethane.
Methylene chloride 298, 299, 300 0000000194 page 4 14 version 1. The compound is an sicellent solvent and is especially attractive as a cleanins solvent because of its emectiveness and nonflammability. Kathy kelly, a spokesman for nestle, said her company did not use any chemicals in its decaffeination process. Certain paint strippers, aerosol paints, and adhesives, as well as other metal cleaning products can contain methylene chloride.
Related categories, cx bond formation halogen, chemical synthesis. Although it is not miscible with water, it is miscible with many organic solvents. Dec 21, 1985 the methylene chloride is drawn from the water, which is then returned to the coffee. Methylene chloride 75092 u080 no chemical weapons convention. Raquel baranow, cc paint strippers with methylene chloride are a common source of exposure.
It is hoped that this book will prove valuable to safety advisers, environmental health officers, emergency. Methylene chloride, also known as dichloromethane and dcm, is a volatile and high production volume hpv chemical that is used as a solvent in a wide range of industrial, commercial and consumer applications. Methylene chloride market segment and forecast up to 2023. Its also possible for this chemical to be absorbed through skin. This colourless, volatile liquid with a moderately sweet aroma is widely used as a solvent. Nov 16, 2018 a toxicology report revealed her only son died from methylene chloride inhalation. Department of labor physical address 4 west edenton st. Chemical product and company identification product name. The chemical formula for methylene chloride is ch2cl2, and the molecular weight is 84. Common synonyms molecular formula chemical structure physical state molecular weight melting point boiling point water solubility density vapor density air koc log kow vapor pressure 1 75092 mc, dlchloromethane, dcm. Chemical cas number state qs qc sl c3 tf tp br rc tk rf. One major side effect of drinking decaf coffee eat this. A common synonym for methylene chloride is dichloromethane. Visit chemicalbook to find more dcm75092 information like chemical properties,structure,melting point,boiling point,density,molecular formula, molecular.
The average consumer is most likely to encounter it in paint strippers, even though safer alternatives exist. The cas number is the substance numerical identifier assigned by the chemical abstracts service, a division of the american chemical society, to substances registered in the cas registry database. The following links contain additional information about the dangers of methylene chloride and safer alternatives. The chemical is an ingredient in paint strippers sold at hardware stores, and is also used commercially. Apr 06, 2021 the extract of methylene chloride can still be found in many decaf coffee brands.
Criminalterrorist use of chemicalbiological radiological agents. Methylene chloride is produced by the reaction of methyl chloride with chlorine. Not available recommended use of the chemical and restrictions on use recommended use. A substance identified primarily by an ec or list number may be linked with more than one cas number, or with cas numbers that have been deleted. Osha occupational chemical database occupational safety and. I will continue my fight until the epa does its job. Methylene chloride, also known as dichloromethane or dcm, is used as an industrial solvent and a paint stripper, and is often used in bathtub refinishing. Klean strip premium stripper non methylene chloride formula fastacting. Methylene chloride can cause acute cns and respiratory depression, with resultant cardiac dysrhythmia. Exposure to decomposition products may be a hazard to. Also known as methylene chloride, dichloromethane dcm is a transparent, colorless, volatile halogenated aliphatic hydrocarbon compound with an etherlike mildly sweet smell. Methylene chloride, which is also called dichloromethane or dcm, is a volatile chemical that is produced and imported into the united states, with use estimated at over 260 million pounds per yea r. In some cases, abrasive blasting must be followed by a chemical cleaning.
Dichloromethane dcm or methylene chloride is an organic compound with the formula ch 2 cl 2. Epa states that it determined that the use of methylene chloride in consumer paint and coating removal. A reference material provided by the coroner, a book entitled disposition of toxic drugs and chemicals in man, 8th edition, cited a study divincenzo et al. Methylene chloride is a colorless, volatile liquid with a slight sweet odor. Material safety data sheet msds methylene chloride. Nov 12, 2018 in recent months, some retailers have said they will stop selling products that contain methylene chloride, also known as dcm, and a second chemical, nmethyl2pyrrolidone, or nmp. Methylene chloride is also approved for use as a postharvest fumigant for grains and strawberries and as a degreening agent for citrus fruit. Cpwr resources to protect workers from methylene chloride.
Accident report detail occupational safety and health. Due to high dielectric constant and dipole moment, dmi exhibits high solubility in various inorganic and organic compounds. In the framework of the project investigating for chemicals in the future, the. Dichloromethane ch2cl2 cid 6344 structure, chemical names, physical and chemical properties. Learn more about expanded access to acs publications research. Jun 26, 2018 the chemical structure of methylene chloride is very simple as shown at the us national library of medicines toxnet database nlm, 2018a. The success achieved by this books forerunners, basic principles of organic. Agency says solvent is safe for processing coffee the new. The epa listed methylene chloride as a priority chemical in november 2016, leaving up to another three and a half years for the assessment and final decision. The chemical formula for methylene chloride is ch 2 cl 2, and the molecular weight is 84. Estimation of available chlorine in bleaching powder. A highly interactive comprehensive scientific resource, containing over 700 interactive tables in over 450 documents. It has a sweet odor and evaporates into the air quickly. Acs reagent chemicals acs publications american chemical.
Material safety data sheet msds methylene chloride section 1. If you are a consumer or worker who uses products with methylene chloride, you may be exposed by inhaling the fumes of the chemical. Workers who use methylene chloride will now be left unprotected and at risk of health issues or death. If inhaled at high levels, methylene chloride can cause respiratory tract irritation, and noncardiogenic pulmonary edema may ensue. Methylene chloride is a very fastdrying solvent cement for polycarbonate and is recommended for use in only temperate climate zones and when bonding small areas together.
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