o-Phenylenediamine Chemical Properties
Melting point 99-102 °C
Boiling point 256-258 °C(lit.)
density 1,27 g/cm3
vapor density 3.7 (vs air)
vapor pressure 0.01 mm Hg ( 25 °C)
refractive index 1.6339 (estimate)
Fp 110°C
storage temp. 2-8°C
solubility H2O: 1 tablet/10 mL, clear, colorless
form tablet
Colour Index 76010
pka 4.46(at 25℃)
color white to off-white
PH Range Green Q uorescence (3.1) to nonQ uorescence (4.4)
PH 7-8 (50g/l, H2O, 20℃)
explosive limit 1.5%(V)
Water Solubility <0.1 g/100 mL at 20 ºC
Sensitive Air & Light Sensitive
Merck 14,7284
BRN 606074
Stability: Stable. Incompatible with strong oxidizing agents.
Major Application bottom antireflective coatings, semiconductor devices, hair dyes, detecting antibody, substrate for horseantibody, glucose, streptomycin, penicillin, sulfonamide, neuroglobin, substrate for horseradish peroxidase
CAS DataBase Reference 95-54-5(CAS DataBase Reference)
NIST Chemistry Reference 1,2-Benzenediamine(95-54-5)
EPA Substance Registry System 1,2-Benzenediamine(95-54-5)
Safety Information
Hazard Codes T,N
Risk Statements 20/21-25-36-40-43-50/53-68
Safety Statements 28-36/37-45-60-61-1/2
RIDADR UN 1673 6.1/PG 3
WGK Germany 3
RTECS SS7875000
F 8-10-23
TSCA Yes
HazardClass 6.1
PackingGroup III
HS Code 29215119
Hazardous Substances Data 95-54-5(Hazardous Substances Data)
Toxicity LD50 in rats (mg/kg): 1070 orally; 516 i.p., C. Burnett et al., J. Toxicol. Environ. Health 2, 657 (1977)