4,5-Dichloro-o-phenylenediamine

  • 1,2-Benzenediamine, 4,5-dichloro-
Formula
C6H6Cl2N2
Structure
Description
Brown crystalline powder.

Registry Numbers and Inventories.
CAS
5348-42-5
EC (EINECS/ELINCS)
226-305-0
R 20/21/22 33 40
S 26 36/37/39 45
UN (DOT)
2811
Beilstein/Gmelin
1072811
Beilstein Reference
4-13-00-00072

Properties.
Formula
C6H6Cl2N2
Formula mass
177.03
Melting point, °C
163
Boiling point, °C
305
Partition coefficient, pKow
1.54

Hazards and Protection.
Storage
Store in a cool, dry place. Store in a tightly closed container.
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
Acids, acid chlorides, acid anhydrides, chloroformates.
Decomposition
Hydrogen chloride, carbon monoxide, oxides of nitrogen, carbon dioxide.

Fire.
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
May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated. Effects may be delayed 2 to 4 hours. Methemoglobinemia is characterized by dizziness, drowsiness, headache, breath shortness, cyanosis with bluish skin, rapid heart rate and chocolate-brown colored blood.
   Inhalation
May cause respiratory tract irritation. May cause effects similar to those described for ingestion.
   Skin
May cause skin irritation.
   Eyes
May cause 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.
UN number
2811
Response guide