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1,2-Diphenylhydrazine Structure

1,2-Diphenylhydrazine

Chemical Properties

Melting point 123-126 °C(lit.)
Boiling point 308.2°C (rough estimate)
Density  1,158 g/cm3
vapor pressure  2.6 x 10-5 mmHg at 25 °C (Mabey et al., 1982)
refractive index  1.6266 (estimate)
storage temp.  Refrigerator
solubility  Soluble in ethanol (Weast, 1986).
pka 3.02±0.70(Predicted)
color  Colorless to pale yellow to orange crystals
Water Solubility  221 mg/L at 25 °C (U.S. EPA, 1980a)
BRN  639793
Stability Stable. Incompatible with strong oxidizing agents, strong acids.
InChIKey YBQZXXMEJHZYMB-UHFFFAOYSA-N
CAS DataBase Reference 122-66-7(CAS DataBase Reference)
NIST Chemistry Reference Hydrazine, 1,2-diphenyl-(122-66-7)
EPA Substance Registry System 1,2-Diphenylhydrazine (122-66-7)

Safety Information

Hazard Codes  T,N
Risk Statements  45-22-50/53
Safety Statements  53-45-60-61
RIDADR  UN 3077 9/PG 3
WGK Germany  3
RTECS  MW2625000
10-23
TSCA  Yes
HazardClass  6.1
PackingGroup  III
HS Code  29280000
Hazardous Substances Data 122-66-7(Hazardous Substances Data)
Toxicity Acute oral LD50 for rats 301 mg/kg (quoted, RTECS, 1985).

MSDS

Usage And Synthesis

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