Home Categories Chemical Reagents N,N′-Diphenyl-p-phenylenediamine
A3119112

N,N′-Diphenyl-p-phenylenediamine , 95% , 74-31-7

Synonym(s):
DPPD;N,N′-Diphenyl-1,4-phenylenediamine

CAS NO.:74-31-7

Empirical Formula: C18H16N2

Molecular Weight: 260.33

MDL number: MFCD00003015

EINECS: 200-806-4

Pack Size Price Stock Quantity
25G RMB51.20 In Stock
100G RMB158.40 In Stock
500G RMB642.40 In Stock
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Update time: 2022-07-08

PRODUCT Properties

Melting point: 143-145 °C(lit.)
Boiling point: 220-225 °C0.5 mm Hg(lit.)
Density  1.2
refractive index  1.6300 (estimate)
Flash point: 220-225°C/1mm
storage temp.  Store below +30°C.
solubility  DMSO (Slightly), Methanol (Slightly)
form  Solid
pka 1.85±0.20(Predicted)
color  Pale Grey to Very Dark Grey
Water Solubility  <0.1 g/100 mL at 20 ºC
Merck  14,3329
BRN  2215944
Stability: Stable. Incompatible with strong acids, strong oxidizing agents
LogP 4.536 (est)

Description and Uses

N,N'-Diphenyl-4-phenylenediamine (DPPD) is a rubber accelerant, formerly contained in the "black rubber mix". The most frequent occupational categories are in metal industry, homemakers, health services and laboratories, and building industries.

Polymerization inhibitor. Antioxidant for rubber, petroleum oils, feedstuffs.

Safety

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H317-H412
Precautionary statements  P273-P280-P302+P352
Hazard Codes  Xi
Risk Statements  43-52/53
Safety Statements  24-37-61
WGK Germany  1
RTECS  ST2275000
TSCA  Yes
HS Code  2921 51 90
Toxicity LD50 orally in Rabbit: 2370 mg/kg LD50 dermal Rat 4500 mg/kg

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