75-07-0 Acetaldehyde

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