SPECTRUM

Chemical Fact Sheet

Chemical Abstract Number (CAS #) 79469
CASRN 79-46-9
Synonyms2-Nitropropane
Propane, 2-nitro-
Analytical Methods EPA Method 524.2
EPA Method 8260
Molecular FormulaC3H7NO2

Link to the National Library of Medicine's Hazardous Substances
Database for more details on this compound.

Use CHEM SYNTHESIS; ROCKET PROPELLANT; GASOLINE ADDITIVE IN CONCN RANGING FROM APPROX 5% TO 25% IS USED IN NUMBER OF SOLVENT SYSTEMS TO IMPROVE DRYING TIME; TO INSURE MORE COMPLETE SOLVENT RELEASE; TO PROVIDE BETTER FLOW CHARACTERISTICS & FILM INTEGRITY; TO INCR WETTING ABILITY & ELECTROSTATIC SPRAYING PROPERTIES; & TO INSURE GREATER PIGMENT DISPERSION. SOLVENT SYSTEMS USED IN COATINGS, EG, VINYL, EPOXY, NITROCELLULOSE & CHLORINATED RUBBERS, PRINTING INKS & ADHESIVES. CHEM INT FOR 2-AMINO-2-METHYL-1-PROPANOL CHEM INT FOR 2-DIMETHYLAMINO-2-METHYL-1-PROPANOL SMOKE DEPRESSANT IN DIESEL FUEL Racing car fuels may contain 20% nitropropane. Paint and varnish removal. Intermediate in the synthesis of pharmaceuticals, dyes, and insecticides. Explosives
Apparent Color COLORLESS LIQ
Boiling Point 120.3 DEG C @ 760 MM HG
Melting Point -93 DEG C
Molecular Weight 89.09
Density 0.9821 AT 25 DEG C/4 DEG C
Odor Threshold Concentration Detection in air (99% pure) 2.49 X 10 ppb Odor low: 17.5 mg/cu m; Odor high: 1029 mg/cu m
Sensitivity Data Vapor irritating to eyes, nose and throat. Liquid irritating to skin and eyes.
Environmental Impact 2-Nitropropane enters the atmosphere connected with its manufacture and use as a solvent. These sources are primarily of occupational concerns. Other uses such as octane or cetane boosters in fuels could lead to more widespread exposure although no ambient monitoring is available to document such exposure. 2-Nitropropane will photodegrade in the atmosphere. Its half-life due to photolysis is 9.8 days, while that due to reaction with photochemically produced hydroxyl radicals is 44 days. When spilled in water or land, 2-nitropropane will be lost by evaporation although photodegradation in surface water is possible. It is not adsorbed appreciably by soil. Degradation in soil will be minimal. 2-Nitropropane would not be expected to bioconcentrate in fish. Humans are exposed to 2-nitropropane in occupational settings.
Environmental Fate TERRESTRIAL FATE: If spilled on land, 2-nitropropane would be expected to volatilize rapidly and also leach into the soil where its degradation rate is low. AQUATIC FATE: When spilled in water, 2-nitropropane will volatilize with a half-life of 9.7 hrs for a typical river. It would not be expected to adsorb appreciably to suspended solids or sediment. It is likely to photolyze in surface water but no estimates of this or other degradative processes are available. ATMOSPHERIC FATE: In the atmosphere, 2-nitropropane will degrade due to photolysis (half-life 9.8 days) and reaction with photochemically produced hydroxyl radicals (44 days) .

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