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Diphenylamine Structure

Diphenylamine

Chemical Properties

Melting point 52 °C
Boiling point 302 °C(lit.)
Density  1.16
vapor density  5.82 (vs air)
vapor pressure  1 mm Hg ( 108 °C)
refractive index  1.5785 (estimate)
Flash point 307 °F
storage temp.  Store below +30°C.
solubility  alcohol: passes test
form  crystalline
pka 0.79(at 25℃)
color  tan
Odor Floral odor
Water Solubility  Slightly soluble. 0.03 g/100 mL
Sensitive  Air & Light Sensitive
Merck  14,3317
BRN  508755
Exposure limits TLV-TWA 10 mg/m3 (ACGIH and MSHA).
Dielectric constant 3.3(11℃)
Stability Stable; may discolour on exposure to light. Incompatible with strong acids, strong oxidizing agents.
LogP 3.82 at 20.2℃
CAS DataBase Reference 122-39-4(CAS DataBase Reference)
NIST Chemistry Reference Diphenylamine(122-39-4)
EPA Substance Registry System Diphenylamine (122-39-4)

Safety Information

Hazard Codes  T,N,F
Risk Statements  23/24/25-33-50/53-52/53-39/23/24/25-11-51/53
Safety Statements  28-36/37-45-60-61-28A-16-7
RIDADR  UN 3077 9/PG 3
WGK Germany  3
RTECS  JJ7800000
8-10-23
Autoignition Temperature 630 °C DIN 51794
TSCA  Yes
HS Code  2921 44 00
HazardClass  6.1
PackingGroup  III
Hazardous Substances Data 122-39-4(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: 1120 mg/kg LD50 dermal Rabbit > 5000 mg/kg

MSDS

Usage And Synthesis

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