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4,4'-OXYBIS(BENZENESULPHONYL HYDRAZIDE)ICSC: 1285
November 1998
CAS #: 80-51-3Benzenesulfonic acid, 4,4'-oxybis-, dihydrazide
4,4'-Oxydi(benzenesulphonohydrazide)
Diphenyloxide 4,4'-sulphonylhydrazide
p,p'-Oxybisbenzenesulphonyl hydrazide
EINECS #: 201-286-1

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Not combustible.        In case of fire in the surroundings, use appropriate extinguishing media.   

 PREVENT DISPERSION OF DUST!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation   Use local exhaust.  Fresh air, rest. 
Skin   Protective gloves.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes   Wear safety spectacles.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion   Do not eat, drink, or smoke during work.  Rinse mouth. Give one or two glasses of water to drink. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations. Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. 

According to UN GHS Criteria

 

Transportation
UN Classification
 

STORAGE
 
PACKAGING
 
4,4'-OXYBIS(BENZENESULPHONYL HYDRAZIDE) ICSC: 1285
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
ODOURLESS WHITE CRYSTALLINE POWDER. 

Physical dangers
 

Chemical dangers
 

Formula: C12H14N4O5S2 / H2NHNO2SC6H4OC6H4SO2NHNH2
Molecular mass: 358.4
Decomposes at 140-160°C
Melting point: 130°C
Density: 1.52 g/cm³
Solubility in water: none 


EXPOSURE & HEALTH EFFECTS

Routes of exposure
 

Effects of short-term exposure
See Notes. 

Inhalation risk
Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly when dispersed. 

Effects of long-term or repeated exposure
 


Occupational exposure limits
TLV: (inhalable fraction): 0.1 mg/m3, ppm, as TWA 

ENVIRONMENT
 

NOTES
Health effects of exposure to the substance have not been investigated adequately. 

ADDITIONAL INFORMATION
  EC Classification
 

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    See Also:
       Toxicological Abbreviations