|Chemical Abstract Number (CAS #)||
||EPA Method 8270 |
Link to the National Library of Medicine's Hazardous Substances
Database for more details
on this compound.
|Use|| CHEM INT FOR CI PIGMENT YELLOW 5, ORANGE 2, YELLOW 7, VAT RED 15,
VAT ORANGE 7, CI PIGMENT ORANGE 43, VAT RED 14, DISPERSE YELLOW 10.
SYNTHESIS OF PHOTOGRAPHIC ANTIFOGGING AGENT,
|Consumption Patterns|| ESSENTIALLY 100% FOR DYE MANUFACTURE (1972)
|Apparent Color|| YELLOW-ORANGE CRYSTALS FROM BOILING WATER ; PLATES OR
NEEDLES ; Orange solid
|Boiling Point|| 284 DEG C (CALCULATED)
|Melting Point|| 69-71 DEG C
|Molecular Weight|| 138.14
|Density|| 0.9015 AT 25 DEG C/4 DEG C
|Sensitivity Data|| Dust: irritating to eyes, nose and throat; solid: irritating to skin & eyes
|Environmental Impact|| 2-Nitroaniline may be released to the environment in waste effluents generated at sites of
its commercial production or use as chemical intermediate in the synthesis of dyes and pigments.
It may also occur as a microbial decomposition product of dinitrobenzene. If released to the
atmosphere, 2-nitroaniline should degrade rapidly in the vapor-phase (estimated half-life of 11 hr)
by reaction with photochemically produced hydroxyl radicals. If released to soil or water, covalent
bonding to humic materials may be important. The covalent bonding process may represent a
mechanism by which 2-nitroaniline may be converted to a latent form in the biosphere. If this
covalent bonding does not occur, 2-nitroaniline should leach through soils and sorption to
sediments in water should not be important. When existing in a dissolved state in the water
column, 2-nitroaniline may be susceptible to significant degradation in sunlight via reaction with
photochemically produced oxidants such as hydroxyl and peroxy radicals. Occupational exposure
may occur primarily through dermal contact at sites of its commercial production and use as a
|Environmental Fate|| TERRESTRIAL FATE: 2-Nitroaniline may undergo significant covalent bonding with
humic materials in soil which would result in significant adsorption and a chemical conversion to a
latent form. If this bonding does not occur, significant leaching may be possible. A number of
biological screening studies have found 2-nitroaniline to be generally resistant to biodegradation.
AQUATIC FATE: 2-Nitroaniline may undergo significant covalent bonding with humic materials
in natural water which would result in significant adsorption and a chemical conversion to a latent
form. If this bonding does not occur, sorption to suspended solids and sediments is not expected
to be important. When existing in a dissolved state in the water column, 2-nitroaniline may be
susceptible to significant degradation in sunlight via reaction with photochemically produced
oxidants such as hydroxyl and peroxy radicals. A number of biological screening studies have
found 2-nitroaniline to be generally resistant to biodegradation. Aquatic hydrolysis, volatilization
and bioconcentration are not expected to be important.
ATMOSPHERIC FATE: Based on a vapor pressure of 8.8X10-4 mm Hg at 25 deg C ,
2-nitroaniline should exist primarily in the vapor-phase in the ambient atmosphere(2,SRC).
2-Nitroaniline is readily degraded in the vapor-phase via reaction with photochemically produced
hydroxyl radicals; this reaction has an estimated half-life of 11 hr in an average ambient
|Drinking Water Impact|| 0.001 mg/l o-Nitroaniline was found in water from the Labith River in the Netherlands.
SURFACE WATER: 2-Nitroaniline was qualitatively detected in the River Waal at Brakel in the
Netherlands during monitoring conducted between 1972-1974 . A 2-nitroaniline concn of 1 ppb
was found in the Rhine River at Lobith, Netherlands in July 1979 .
EFFL: An unspecified isomer of nitroaniline was qualitatively detected in wastewater effluents
from publicly-owned treatment works in Danville and Sauget, IL .