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.
Bromochloromethane
Also known as: Bromochloromethane · 74-97-5 · bromo(chloro)methane · Methylene chlorobromide
- CAS No.
- 74-97-5
- Formula
- CH2BrCl
- Molar mass
- 129.38 g/mol
- PubChem CID
- 6333
Corrosive
Harmful / Irritant
Health hazard
Summary
Bromochloromethane (CH2BrCl), CAS 74-97-5. Common in labs and industry. Read on for hazards, storage, PPE and mixing rules.
Background
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Hazards
Attacks skin, eyes and materials.
May cause skin, eye or respiratory irritation.
Serious long-term health effects (CMR, respiratory sensitizer).
Hazard statements
- H314
- H315: Causes skin irritation [Warning Skin corrosion/irritation]
- H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]
- H332: Harmful if inhaled [Warning Acute toxicity, inhalation]
- H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure
- H420: Harms public health and the environment by destroying ozone in the upper atmosphere [Warning Hazardous to the ozone layer]
- H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]
- H336: May cause drowsiness or dizziness [Warning Specific target organ toxicity, single exposure
- H361: Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]
- H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]
- H373: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]
- H303: May be harmful if swallowed [Warning Acute toxicity, oral]
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 BromochloromethanePractical safety notes
- Corrosive. Wear chemical goggles, faceshield and chemical-resistant gloves. Have an eyewash within reach.
- 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 Bromochloromethane flammable?+
Bromochloromethane (CAS 74-97-5) 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 Bromochloromethane?+
Chemical-splash goggles and a faceshield, chemical-resistant gloves (nitrile or butyl) and an apron are the minimum. Work inside a fume hood or use a suitable respirator. Check SDS section 8 for material-specific breakthrough times.
How should Bromochloromethane be stored?+
Store Bromochloromethane (CAS 74-97-5) in tightly closed original containers, in a cool, dry, well-ventilated area away from incompatible materials. Segregate acids from bases and keep away from metals that can be attacked.
Is Bromochloromethane dangerous for the environment?+
No specific environmental pictogram (GHS09) is listed in our records for Bromochloromethane, 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 Bromochloromethane?+
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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