4-Methyl-2-nitrophenol

  • Nitrocresol
  • 2-Nitro-p-cresol
Formula
C7H7NO3
Structure
Description
Yellow to brown solid.

Registry Numbers and Inventories.
CAS
119-33-5
EC (EINECS/ELINCS)
204-315-6
S 26 36/37/39 45
RTECS
GP2800000
RTECS class
Other
UN (DOT)
2446
Beilstein/Gmelin
1868022
Beilstein Reference
4-06-00-02149
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C7H7NO3
Formula mass
153.15
Melting point, °C
31
Boiling point, °C
234
Vapor pressure, mmHg
0.023 (25 C)
Density
1.2399 g/cm3 (39 C)
Solubility in water
Insoluble
Refractive index
1.5657 (38.6 C)
pKa/pKb
7.45 (pKa)
Partition coefficient, pKow
2.17
Heat of vaporization
49.8 kJ/mol

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear skin protection and self-contained breathing apparatus.
Respirators
Wear a NIOSH/MSHA or European Standard EN 149 approved full-facepiece airline respirator in the positive pressure mode with emergency escape provisions.
Small spills/leaks
Sweep up, then place into a suitable container for disposal.
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents - strong bases - acid chlorides - acid anhydrides.
Decomposition
Nitrogen oxides, carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
108
Fire fighting
Small Fires: Dry chemical, carbon dioxide or water spray. Large Fires: Dry chemical, carbon dioxide, alcohol-resistant foam or water spray.
Fire potential
Quite flammable.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
   Ingestion
See Inhalation.
   Inhalation
TOXIC; inhalation, ingestion, or skin contact with material may cause severe injury or death. Effects of contact or inhalation may be delayed.
   Skin
Contact with molten substance may cause severe burns to skin and eyes. See Inhalation.
   Eyes
See Inhalation.

First aid
 
   Ingestion
Do NOT induce vomiting. Allow the victim to rinse his mouth and then to drink 2-4 cupfuls of water, and seek medical advice.
   Inhalation
Remove from exposure to fresh air immediately.
   Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Immediately flush with running water for at least 20 minutes.

Transport.
UN number
2446
Response guide
Hazard class
6.1
Packing Group
III