Formaldehyde

CAS 50-00-0 CH₂O MW 30.0000 Danger
NIOSH Potential Occupational Carcinogen
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Gas Cylinder Gas Cylinder
Skull and Crossbones Skull and Crossbones
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Health Hazard Health Hazard
Emergency: 911 | Poison Control: 1-800-222-1222

Safety Data Sheets

ManufacturerDownload
Alfa Aesar Download PDF
Sigma Aldrich Download PDF

Hazard Statements

CodeStatementHazard Class
H220 Extremely flammable gas Flammable gases
H227 Combustible liquid Flammable liquids
H280 Contains gas under pressure; may explode if heated Gases under pressure
H302 Harmful if swallowed Acute toxicity, oral
H311 Toxic in contact with skin Acute toxicity, dermal
H315 Causes skin irritation Skin corrosion/irritation
H317 May cause an allergic skin reaction Sensitization, Skin
H319 Causes serious eye irritation Serious eye damage/eye irritation
H330 Fatal if inhaled Acute toxicity, inhalation
H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled Sensitization, respiratory
H341 Suspected of causing genetic defects Germ cell mutagenicity
H350 May cause cancer Carcinogenicity
H370 Causes damage to organs Specific target organ toxicity, single exposure
H372 Causes damage to organs through prolonged or repeated exposure Specific target organ toxicity, repeated exposure

Precautionary Statements

CodeStatement
P203 Obtain, read and follow all safety instructions before use.
P210 Keep away from heat, hot surface, sparks, open flames and other ignition sources. No smoking.
P222 Do not allow contact with air.
P233 Keep container tightly closed.
P260 Do not breathe dust/fume/gas/mist/vapors/spray.
P261 Avoid breathing dust/fume/gas/mist/vapors/spray.
P262 Do not get in eyes, on skin, or on clothing.
P264 Wash hands [and ...] thoroughly after handling.
P264+P265 Wash hands [and ...] thoroughly after handling. Do not touch eyes.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P272 Contaminated work clothing should not be allowed out of the workplace.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P284 [In case of inadequate ventilation] Wear respiratory protection.
P301+P317 IF SWALLOWED: Get medical help.
P302+P352 IF ON SKIN: wash with plenty of water/...
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do - continue rinsing.
P308+P316 IF exposed or concerned: Get emergency medical help immediately.
P316 Get emergency medical help immediately.
P318 if exposed or concerned, get medical advice.
P319 Get medical help if you feel unwell.
P320 Specific treatment is urgent (see ... on this label).
P321 Specific treatment (see information on this label and safety datasheet)).
P330 Rinse mouth.
P332+P317 If skin irritation occurs: Get medical help.
P333+P317 If skin irritation or rash occurs: Get medical help.
P337+P317 If eye irritation persists: Get medical help.
P342+P316 If experiencing respiratory symptoms: Get emergence medical help immediately.
P361+P364 Take off immediately all contaminated clothing and wash it before reuse.
P362+P364 Take off contaminated clothing and wash it before reuse.
P370+P378 In case of fire: Use ... to extinguish.
P377 Leaking gas fire: Do not extinguish, unless leak can be stopped safely.
P381 In case of leakage, eliminate all ignition sources.
P403 Store in a well-ventilated place.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P405 Store locked up.
P410+P403 Protect from sunlight. Store in a well-ventilated place.
P501 Dispose of contents/container to ...

Exposure Limits

OSHA PEL0.75 ppm
NIOSH REL1.6E-2 ppm (Ceiling: 0.1 ppm)
NIOSH IDLH20 ppm
Skin NotationYes — can be absorbed through skin

Physical Properties

Nearly colorless gas with a pungent, suffocating odor.

Boiling Point214°F
Flash Point185°F
Vapor Pressure1 mmHg

NFPA 704 Diamond

2
3
0
Health Fire Reactivity

Synonyms

formic aldehyde; lysoform; methanal; oxomethane; oxymethylene solution; paraform; formaldehyde (solution)

Data Sources

Disclaimer: This information is compiled from public regulatory databases for reference only. It does not replace the manufacturer's Safety Data Sheet (SDS). Always consult the official SDS for your specific product before handling chemicals.

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