91黄色美女,亚州久久久久,91久久夜夜

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)

Flash point:: 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

Henry's Law Constant: 7.1×10² mol/(m³Pa) at 25℃, Yaws (2003)

Exposure limits: ACGIH:TLV-TWA 0.1 mg/m3
OSHA:PEL-TWA 0.1 mg/m3
NIOSH:REL-TWA 0.1 mg/m3

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

Symbol(GHS): GHS06,GHS08,GHS09

Signal word: Danger

Hazard statements: H301+H311+H331-H319-H370-H372-H373-H317-H334-H410

Precautionary statements: P501-P273-P272-P260-P270-P271-P264-P280-P284-P391-P337+P313-P305+P351+P338-P308+P311-P361+P364-P333+P313-P301+P310+P330-P302+P352+P312-P304+P340+P311-P403+P233-P405

target organs: Kidney,Heart,Musculo-skeletal system

PPE: Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges

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 (PHENYLENEDIAMINES (o-, m-, p-))

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

REACH Registrations: Active

Limited Quantities: 5.0 kg (11 lbs) (solid)

Excepted Quantities: Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)

Use

p-phenylenediamine is one of the simplest aromatic diamine with the pure product being white to purple red crystals.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.