CAS Number: 75-07-0
Chemical Name: Acetaldehyde
Type of Toxicity: cancer
Listing Mechanism: State's Qualified Experts (SQE)
Date Listed: 1-Apr-88
NSRL (No Significant Risk Level) or MADL (Maximum Allowable Dose Level): 90 (inhalation) µg/day
Where a source or product results in exposures by multiple routes, the total exposure must be considered. For example, the MADL for benzene is exceeded when the absorbed dose exceeds 24 µg/day. If only inhalation and oral exposure occurs, the benzene MADL is exceeded when: (oral dose ÷ 24 µg/day) + (inhalation dose ÷ 49 µg/day) > 1.0.
Chemical Formula: C2H4O
EC Number (EINECS): 200-836-8
Synonyms: Acetic aldehyde;Ethanal;Ethyl aldehyde;CH3CHO;Acetaldehyd;Aldehyde acetique;Aldeide acetica;NCI-C56326;Octowy aldehyd;Acetylaldehyde;Rcra waste number U001;UN 1089;Acetaldeyde
Appearance: colourless liquid
Melting Point: -124 C
Boiling Point: 20 C
Vapor Density: 1.52 (air = 1)
Vapor Pressure: 755 mm Hg at 20 C
Flash Point: -39 C
Explosion Limits: 4% - 57%
Auto Ignition: 185 C
Water Solubility: miscible in all prop
Stability: Stable, but air sensitive. Substances to be avoided include strong oxidizing agents, strong acids, reducing agents, alkalies, halogens, halogen oxides. Highly flammable. Vapour/air mixtures explosive over a very wide concentration range. May form peroxides in storage.
Molecular Weight: 44.0526
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