2-Methyl-4-nitrophenol

  • p-Nitro-o-cresol
  • 4-Nitro-o-cresol
  • 4-Nitro-2-methylphenol
  • 2-Hydroxy-5-nitrotoluene
Formula
C7H7NO3
Structure
Description
yellow powder

Registry Numbers and Inventories.
CAS
99-53-6
EC (EINECS/ELINCS)
202-763-7
22 36/37/38
RTECS
GP2700000
RTECS class
Other
UN (DOT)
2446
Beilstein/Gmelin
1365535
Beilstein Reference
4-06-00-02011
Japan ENCS (MITI)
Listed

Properties.
Formula
C7H7NO3
Formula mass
153.15
Melting point, °C
96
Boiling point, °C
311
Vapor pressure, mmHg
0.0003 (25 C)
Refractive index
y
pKa/pKb
7.43 (pKa)
Heat of vaporization
57.4 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed.
Protection
Compatible chemical-resistant gloves. Chemical safety goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
ELIMINATE all ignition sources. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Stability
Stable at normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, Carbon dioxide, Nitrogen oxides.

Fire.
Flash Point,°C
143
Fire fighting
Extinguish using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Fire potential
Combustible material: may burn but does not ignite readily.
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
2
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure effects
Harmful if swallowed. Irritating to eyes, respiratory system and skin.
   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
Seek medical assistance.
   Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.
   Skin
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.
   Eyes
Immediately flush with running water for at least 20 minutes.

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