p-Phenylenediamine CAS#106-50-3

CAS Number: 106-50-3
Chemical Formula: C6H8N2
Synonyms:

JAROCOL PPD
fur black 41866
C.I. 76060

Appearance: White Powder

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

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Product Details

p-Phenylenediamine CAS#106-50-3

P-phenylenediamine is one of the simplest aromatic diamine with the pure product being white to purple red crystals. It turns purple or dark brown color when being exposed to the air. It is slightly soluble in cold water, soluble in alcohol, ether, chloroform and benzene. It can be used for making azo dyes, high-molecule polymers and can also be used for the production of fur dyes, rubber antioxidants and photo developer and is mainly used for Kevlar, azo dyes, sulfur dyes, acid dyes as well as being used for the production of black fur D, black fur DB, brown fur N2 as well as rubber antioxidant DNP, DOP and MB. It can also be used as the raw material of cosmetic hair p-Phenylenediamine series, gasoline polymerization inhibitor and developer. P-phenylenediamine, as a chemical dye, is currently permitted for use in hair dye production, but there is a clear usage limits. According to China "Hygienic Standard for Cosmetics," the content of p-phenylenediamine in hair dyes should not exceed 6%. According to the introduction of experts, although five kinds of "Yixihei" shampoo have their p-phenylenediamine content being within 1.1% to 1.4%. However, the shampoo has high frequency of usage with long-term accumulation being prone to pose a threat to the health and safety of consumers. There is still no literatures regarding to whether phenylenediamine is carcinogenic or not; but there is literature basis regarding to that p-phenylenediamine drug is toxic organic. We can refer to Shanghai Science and technology press (November 1985) "reagent Handbook" (second edition), page 980. Overseas research has shown that for population being subject to frequent hair dying has the incidence of breast cancer, skin cancer and leukemia increased. In addition, p-phenylenediamine is also a common sensitive reagent for testing iron and copper. In the international arena, it is also used for aircraft coatings, bullet-proof clothing intima and walls paint.

p-Phenylenediamine Chemical Properties

Melting point	138-143 °C (lit.)
Boiling point	267 °C (lit.)
bulk density	600kg/m3
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)
Fp	156 °C
storage temp.	Store below +30°C.
solubility	Soluble in alcohol, chloroform, ether and hot benzene.
pka	4.17(at 25℃)
form	Powder or Flakes
Colour Index	76060
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
Cosmetics Ingredients Functions	HAIR DYEING
InChI	1S/C6H8N2/c7-5-1-2-6(8)4-3-5/h1-4H,7-8H2
InChIKey	CBCKQZAAMUWICA-UHFFFAOYSA-N
SMILES	Nc1ccc(N)cc1
LogP	-0.84 at 20℃
CAS DataBase Reference	106-50-3(CAS DataBase Reference)
IARC	3 (Vol. 16, Sup 7) 1987
NIST Chemistry Reference	1,4-Benzenediamine(106-50-3)
EPA Substance Registry System	p-Phenylenediamine (106-50-3)

Safety Information

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
RIDADR	UN 1673 6.1/PG 3
OEB	D
OEL	TWA: 0.1 mg/m3 [skin]
WGK Germany	3
RTECS	SS8050000
F	8-10-23
Autoignition Temperature	567 °C
TSCA	TSCA listed
HazardClass	6.1
PackingGroup	III
HS Code	29215119
Storage Class	6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects
Hazard Classifications	Acute Tox. 3 Dermal Acute Tox. 3 Inhalation Acute Tox. 3 Oral Aquatic Acute 1 Aquatic Chronic 1 Eye Irrit. 2 Skin Sens. 1 STOT SE 1 Oral
Hazardous Substances Data	106-50-3(Hazardous Substances Data)
Toxicity	LD50 in rats (mg/kg): 80 orally, 37 i.p. (Burnett)
IDLA	25 mg/m3

Product Application Of p-Phenylenediamine CAS#106-50-3

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.

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