HYDRAZODIBENZENE

PRODUCT IDENTIFICATION
CAS NO. 122-66-7

HYDRAZODIBENZENE
EINECS NO. 204-563-5
FORMULA C6H5NHNHC6H5
MOL WT. 184.24

H.S. CODE

  
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TOXICITY

  
SYNONYMS 1,1'-Hydrazodibenzene; N,N'-Bianiline;
1,2-Diphenylhydrazine; Diphenylhydrazine, 1,2-DPH; Hhydrazobenzene; N,N'-Diphenylhydrazine; (sym)-Diphenylhydrazine; 1,2-Diphenyldrazine;

CLASSIFICATION

  

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE off-white to yellow crystalline powder
MELTING POINT 123 - 126 C
BOILING POINT 309 C
SPECIFIC GRAVITY 1.155 - 1.165
SOLUBILITY IN WATER Slightly soluble
pH  
VAPOR DENSITY

 
AUTOIGNITION

 
NFPA RATINGS  

REFRACTIVE INDEX

  
FLASH POINT  
STABILITY

Stable under ordinary conditions

GENERAL DESCRIPTION AND APPLICATIONS

Hydrazine (anhydrous) is a clear, fuming, corrosive liquid with an ammonia-like odor; melting at 1.4 C, boiling at 113.5 C, specific gravity 1.011. It is very soluble in water and soluble in alcohol. It decomposes on heating or exposure to UV to form ammonia, hydrogen, and nitrogen, which may be explosive with a blue flame when catalysed by metal oxides and some metals such as platinum or Raney nickel. It is prepared from ammonia with chloramine in the presence of glue or gelatin (to inhibit decomposition of the hydrazine by unreacted oxidants) as the hydrate form usually (100% monohydrate contains 64% by weight hydrazine). Hydrazine is also prepared from sodium hypochlorite with urea in the presence of glue or gelatin. Hydrazine is used as a component in jet fuels because it produce a large amount of heat when burned. Hydrazine is used as an oxygen scavenger for boiler feed water to prevent corrosion damage. Hydrazine is used as a reducing agent for the recovery of precious metals and as a chain extender in urethane coatings. Hydrazine is dibasic and very reactive. It and its derivatives have active applications in organic synthesis for agrochemicals, pharmaceuticals and stabilizers, polymerization catalysts, flame-retardants, blowing agents for plastics.

Hydrazodibenzene (1,2-diphenylhydrazine) is a white solid. It does not dissolve easily in water but reacts rapidly to form other chemicals such as benzidine, azobenzene. Hydrazodibenzene is used in manufacturing benzidine (important azo dyes intermediate due to strong fix to cotton). It is used in the synthesis nonsteroidal anti-inflammatory drug (Phenylbutazone).
SALES SPECIFICATION

APPEARANCE

 off-white to yellow crystalline powder
PURITY

98.0% min
MELTING POINT 123 - 126 C
TRANSPORTATION
PACKING
25kgs in bag
HAZARD CLASS  
UN NO.  
OTHER INFORMATION
Hazard Symbols: T, Risk Phrases: 45-22-50/53, Safety Phrases: 53-45-60-61