Home Categories Chemical Reagents p-Phenylenediamine
A6680912

p-Phenylenediamine , Analysis standard , 106-50-3

Synonym(s):
1,4-Benzenediamine;1,4-Diaminobenzene;1,4-Phenylenediamine;4-Aminoaniline

CAS NO.:106-50-3

Empirical Formula: C6H8N2

Molecular Weight: 108.14

MDL number: MFCD00007901

EINECS: 203-404-7

Update time: 2022-07-08

PRODUCT Properties

Melting point: 138-143 °C (lit.)
Boiling point: 267 °C (lit.)
Density  1.135 g/cm3 (20℃)
vapor density  3.7 (vs air)
vapor pressure  1.08 mm Hg ( 100 °C)
refractive index  1.6339 (estimate)
Flash point: 156 °C
storage temp.  Store below +30°C.
solubility  Soluble in alcohol, chloroform, ether and hot benzene.
Colour Index  76060
form  Powder or Flakes
pka 4.17(at 25℃)
color  White, gray, or purple to brown
PH 9 (50g/l, H2O, 20℃)
PH Range NonQ uorescence (3.1) to orange/yellow Q uorescence (4.4)
Water Solubility  47 g/L (25 ºC)
Merck  14,7285
BRN  742029
Exposure limits TLV-TWA 0.1 mg/m3 (ACGIH 1989); TWA skin 0.1 mg/m3 (MSHA and OSHA); IDLH 25 mg/m3 (NIOSH); carcinogenicity: Animal Inadequate Evidence (IARC). .
Stability: Stable, but oxidizes when exposed to air. Incompatible with oxidizing agents. Store under inert atmosphere.
Major Application Nanoparticles, liquid crystal displays, chemical mechanical polishing, bottom antireflective coatings, electrochromic materials, inks, rubber, hair dyes, cosmetics, treatment of virus skin infection
InChIKey CBCKQZAAMUWICA-UHFFFAOYSA-N
LogP -0.84 at 20℃

Description and Uses

Paraphenylenediamine (PPD) is a colorless compound oxidized by hydrogen peroxide in the presence of ammonia. It is then polymerized by a coupling agent to produce a color.

4-Phenylenediamine is an azo-dye intermediate; photographic-developing agent; photo-chemical measurements; intermediate in manufacture of antioxidants and accelerators for rubber; laboratory reagent; dye for hair and fur; lithography; photocopying; oils; greases; gasoline; antioxidant/accelerator in the rubber and plastic industry; the hydrochloride is used as blood reagent.

Safety

Symbol(GHS) 
GHS06,GHS08,GHS09
Signal word  Danger
Hazard statements  H301+H311+H331-H317-H319-H370-H410
Precautionary statements  P273-P280-P301+P310-P302+P352+P312-P304+P340+P311-P305+P351+P338
Hazard Codes  T,N,T+,Xn
Risk Statements  23/24/25-36-43-50/53-63-36/37/38-45-40-48/22-67-52/53
Safety Statements  28-36/37-45-60-61-28A-24/25-23-53-26
OEB D
OEL TWA: 0.1 mg/m3 [skin]
RIDADR  UN 1673 6.1/PG 3
WGK Germany  3
RTECS  SS8050000
8-10-23
Autoignition Temperature 567 °C
TSCA  Yes
HazardClass  6.1
PackingGroup  III
HS Code  29215119
Toxicity LD50 in rats (mg/kg): 80 orally, 37 i.p. (Burnett)
IDLA 25 mg/m3

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