2,4-Diaminophenol dihydrochloride

  • 4-Hydroxy-m-phenylenediammonium dichloride
Formula
C6H8N2O . 2HCl
Structure
Description
Grayish-white crystals.
Uses
As photographic developer, in fur & hair dyeing, in test for formaldehyde & ammonia.

Registry Numbers and Inventories.
CAS
137-09-7
EC (EINECS/ELINCS)
205-279-4
EC Class
harmful, irritant
R 22 36/37/38 42/43
S 22 26 36/37/39 45
RTECS
SK7600000
RTECS class
Tumorigen; Mutagen
UN (DOT)
1759
Merck
13,3003
Beilstein/Gmelin
4228856
Swiss Giftliste 1
G-1082
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C6H10Cl2N2O
Formula mass
197.07
Melting point, °C
205
Solubility in water
275 g/L

Hazards and Protection.
Storage
Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
Handling
Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Do not ingest or inhale.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. 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
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions.
Disposal code
9
Stability
Stable under normal shipping and handling conditions.
Incompatibilities
Strong oxidizing agents.
Decomposition
Hydrogen chloride, nitrogen oxides, carbon monoxide, carbon dioxide.

Fire.
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Use agent most appropriate to extinguish fire.
Fire potential
This material is probably combustible.
Hazards
Contact with metals may evolve flammable hydrogen gas.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
2
 
Flammability
0
 
 
Reactivity
0
 

Health.
Poison_Class
3
Exposure effects
Abnormally low blood pressure and labored respirations may occur. CNS depression and peripheral neuropathy have been reported after ingestion.
   Ingestion
Harmful if swallowed. May cause irritation of the digestive tract. Systemic effects from ingestion may include: rise in blood pressure, vertigo, tremors, convulsions, and coma.
   Inhalation
May cause allergic respiratory reaction. May cause respiratory tract irritation. May cause effects similar to those described for ingestion.
   Skin
Causes skin irritation. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material. If absorbed, may cause symptoms similar to those for ingestion. May cause severe dermatitis and urticaria(hives).
   Eyes
Causes eye irritation. May cause conjunctivitis, lacrimation, abnormnal protrusion of the eyeball, eye inflammation and even possible blindness.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
1759
Response guide
Hazard class
8
Packing Group
I; II; III
 
HS Code
2922 29 00