Educational content for trained professionals. Not a Safety Data Sheet, not medical advice. In an emergency, call your local poison control or emergency services immediately. Terms of use.
Dichloromethane
Also known as: DICHLOROMETHANE · Methylene chloride · 75-09-2 · Methylene dichloride
- CAS No.
- 75-09-2
- Formula
- CH2Cl2
- Molar mass
- 84.93 g/mol
- PubChem CID
- 6344
Harmful / Irritant
Health hazard
Summary
Dichloromethane (CH2Cl2), CAS 75-09-2. Common in labs and industry. Read on for hazards, storage, PPE and mixing rules.
Background
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Physical properties
No experimental physical properties indexed yet. Try PubChem for the raw record.
Hazards
May cause skin, eye or respiratory irritation.
Serious long-term health effects (CMR, respiratory sensitizer).
Hazard statements
- H351: Suspected of causing cancer [Warning Carcinogenicity]
- H302: Harmful if swallowed [Warning Acute toxicity, oral]
- H315: Causes skin irritation [Warning Skin corrosion/irritation]
- H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H336: May cause drowsiness or dizziness [Warning Specific target organ toxicity, single exposure
- H341
- H373
- H332: Harmful if inhaled [Warning Acute toxicity, inhalation]
- H350: May cause cancer [Danger Carcinogenicity]
- H361: Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]
- H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]
- H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]
- H402: Harmful to aquatic life [Hazardous to the aquatic environment, acute hazard]
- H412: Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
- H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure
Storage
Keep at room temperature, below 30 °C, out of direct heat.
Store somewhere well-ventilated and away from any ignition source.
Metal drums or tinted glass, tightly sealed.
Strong acids, strong bases and powerful oxidizers.
Personal protective equipment
Nitrile or butyl, at least 0.4 mm thick.
Safety goggles with side shields.
A2 organic-vapor cartridge if the room isn't well ventilated.
Occupational exposure limits (HSE)
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EU harmonised classification (ECHA C&L)
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Transport
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FDA recalls & enforcement
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Compatibilities
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Open comparator with DichloromethanePractical safety notes
- Irritant / harmful. Ventilate the workspace and avoid skin contact.
- Serious health hazard (carcinogen, mutagen, reprotoxic, respiratory sensitizer). Substitute if possible; otherwise closed systems and medical surveillance.
Derived from the GHS classification shown above. These notes are generic guidance and do not replace the manufacturer's SDS or your local risk assessment.
FAQ
Is Dichloromethane flammable?+
Dichloromethane (CAS 75-09-2) does not carry the GHS02 flame pictogram in our records. Always confirm with the manufacturer's SDS section 9 (flash point) before assuming a product is non-flammable.
What PPE should I wear when handling Dichloromethane?+
Safety glasses with side shields and nitrile gloves are the baseline. Work inside a fume hood or use a suitable respirator. Check SDS section 8 for material-specific breakthrough times.
How should Dichloromethane be stored?+
Store Dichloromethane (CAS 75-09-2) in tightly closed original containers, in a cool, dry, well-ventilated area away from incompatible materials.
Is Dichloromethane dangerous for the environment?+
No specific environmental pictogram (GHS09) is listed in our records for Dichloromethane, but any chemical waste should be handled through your site's hazardous-waste procedure, not poured down the drain.
Where can I find the official Safety Data Sheet for Dichloromethane?+
Official, up-to-date SDS documents are published by each manufacturer (Sigma-Aldrich, Merck, Thermo Fisher, VWR, Carl Roth, etc.) and by regulators such as ECHA and NIOSH. This page is an educational summary and does not replace the manufacturer's SDS.
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