1,2,4-Trimethyl-5-nitrobenzene

  • 1-Nitro-2,4,5-trimethylbenzene
  • 2,4,5-Trimethyl-1-nitrobenzene
  • 5-Nitro-1,2,4-trimethylbenzene
  • 5-Nitropseudocumene
  • 2,4,5-Trimethylnitrobenzene
  • NSC 10997
Formula
C9H11NO2
Structure
Description
Solid.

Registry Numbers and Inventories.
CAS
610-91-3
EC (EINECS/ELINCS)
210-238-9
22/21/22 36/37/38

Properties.
Formula
C9H11NO2
Formula mass
165.19
Melting point, °C
71
Boiling point, °C
265
Vapor pressure, mmHg
0.015 (25 C)
Density
1.100 g/cm3 (20 C)
Solubility in water
25 mg/L (25 C)
Partition coefficient, pKow
3.33
Heat of vaporization
48.26 kJ/mol

Hazards and Protection.
Storage
Keep containers tightly closed.
Protection
Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing.
Respirators
Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU). Where risk assessment shows air-purifying respirators are appropriate use a dust mask type N95 (US) or type P1 (EN 143) respirator.
Small spills/leaks
Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.
Stability
Stable at normal temperatures and pressures.
Incompatibilities
Oxidizing agents.
Decomposition
Oxides of carbon and nitrogen.

Fire.
Flash Point,°C
122
Fire fighting
Extinguish with 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.
Hazards
Emits toxic fumes under fire conditions.
Health
2
 
Flammability
0
 
 
Reactivity
0
 

Health.
Exposure effects
   Ingestion
Harmful if ingested.
   Inhalation
Material is irritating to mucous membranes and upper respiratory tract. Harmful if inhaled.
   Skin
Causes skin irritation. Harmful if absorbed through skin.
   Eyes
Causes irritation.

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
In case of contact, immediately wash skin with soap and copious amounts of water. Remove contaminated clothing and shoes. Call a physician.
   Eyes
In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Transport.