5-Amino-2-nitrobenzoic acid

  • 2-Nitro-5-aminobenzoic acid
  • 3-Carboxy-4-nitroaniline
Formula
C7H6N2O4
Structure
Description
Orange solid.

Registry Numbers and Inventories.
CAS
13280-60-9
EC (EINECS/ELINCS)
236-283-4
R 36/37/38
Beilstein/Gmelin
NA
New Zealand
Listed

Properties.
Formula
C7H6N2O4
Formula mass
182.14
Melting point, °C
234
Boiling point, °C
481
Vapor pressure, mmHg
5E-10 (25 C)
Solubility in water
Very soluble
pKa/pKb
2.31 (pKa)
Partition coefficient, pKow
1.17
Heat of vaporization
78.6 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container. Keep under a nitrogen blanket.
Handling
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Protection
Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Vacuum or sweep up material and place into a suitable disposal container.
Stability
No data.
Incompatibilities
Strong oxidizing agents.
Decomposition
Carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
244
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or chemical foam.

Health.
Exposure effects
   Ingestion
Harmful if swallowed. The toxicological properties of this substance have not been fully investigated.
   Inhalation
Harmful if inhaled. Causes respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
   Skin
Causes skin irritation. Harmful if absorbed through the skin.
   Eyes
Causes eye irritation.

First aid
 
   Ingestion
Get medical aid. Wash mouth out with water.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.