Benzene-1,3-disulfohydrazide

  • 1,3-Benzenedisulfonic acid, dihydrazide
  • Benzene-1,3-disulfonic acid hydrazid
  • m-Benzenedisulfonyl hydrazide
  • Porofor DF 9
Formula
C6H10N4O4S2
Structure

Registry Numbers and Inventories.
CAS
4547-70-0
EC (EINECS/ELINCS)
224-906-2
UN (DOT)
2971
Beilstein/Gmelin
2759980
Beilstein Reference
3-11-00-00454
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed

Properties.
Formula
C6H10N4O4S2
Formula mass
266.30
Melting point, °C
145
Solubility in water
Soluble
pKa/pKb
8.54 (pKa)
Partition coefficient, pKow
-0.43

Hazards and Protection.
Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
ELIMINATE all ignition sources and combustible materials. Do not touch spilled material. Stop leak if you can do it without risk. Take up with inert, damp, noncombustible material using clean non-sparking tools and place into loosely covered plastic containers for later disposal.

Fire.
Fire fighting
Small Fires: Dry chemical, carbon dioxide, water spray or regular foam. Large Fires: Flood fire area with water from a distance.
Fire potential
Self-decomposition or self-ignition may be triggered by heat, chemical reaction, friction or impact.
Hazards
Vapors or dust may form explosive mixtures with air. Some may decompose explosively when heated or involved in a fire.
Combustion products
May produce irritating, toxic and/or corrosive gases.

Health.
Exposure effects
   Inhalation
Inhalation or contact with vapors, substance, or decomposition products may cause severe injury or death.
   Skin
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. Administer oxygen if breathing is difficult.
   Skin
Remove and isolate contaminated clothing and shoes. Remove material from skin immediately. Immediately flush with running water for at least 20 minutes.
   Eyes
Immediately flush with running water for at least 20 minutes.

Transport.
UN number
2971
Response guide