| Chemical Abstract Number (CAS #) |
79469
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| CASRN |
79-46-9 |
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| Synonyms | 2-Nitropropane |
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Propane, 2-nitro- |
| Analytical Methods |
EPA Method 524.2 |
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EPA Method 8260 |
| Molecular Formula | C3H7NO2 |
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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
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| Apparent Color | COLORLESS LIQ
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| Boiling Point | 120.3 DEG C @ 760 MM HG
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| Melting Point | -93 DEG C
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| Molecular Weight | 89.09
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| Density | 0.9821 AT 25 DEG C/4 DEG C
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| 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
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| Sensitivity Data | Vapor irritating to eyes, nose and throat. Liquid irritating to skin and eyes.
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| 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.
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| 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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