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p-Phenylenediamine CAS NO.106-50-3

Min.Order Quantity:
1 Kilogram
Purity:
98%
Port:
China Main Ports
Payment Terms:
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Product Details

Keywords

  • p-Phenylenediamine
  • 106-50-3
  • manufacturer , better price with good quality

Quick Details

  • ProName: p-Phenylenediamine
  • CasNo: 106-50-3
  • Molecular Formula: C6H8N2
  • Appearance: Off-white flakes
  • Application: Organic Chemistry
  • DeliveryTime: Within 7 days
  • PackAge: Depended
  • Port: China Main Ports
  • ProductionCapacity: 300 Kilogram/Month
  • Purity: 98%
  • Storage: KEEP COLD
  • Transportation: BY SEA OR AIR
  • LimitNum: 1 Kilogram
  • Grade: Industrial Grade,Food Grade,Pharma Gra...

Superiority


preview
cbnumber: cb9852680
chemical name: p-phenylenediamine
molecular formula: c6h8n2
formula weight: 108.14
cas no.: 106-50-3
p-phenylenediamine chemical properties
mp 139 °c
bp 267 °c(lit.)
vapor density 3.7 (vs air)
vapor pressure 1.08 mm hg ( 100 °c)
fp 156 °c
storage temp. 2-8°c
colour index 76060
water solubility 47 g/l (25 ºc)
merck 14,7285
brn 742029
stability: stable, but oxidizes when exposed to air. incompatible with oxidizing agents. store under inert atmosphere.
cas database reference 106-50-3(cas database reference)
nist chemistry reference 1,4-benzenediamine(106-50-3)
epa substance registry system 1,4-benzenediamine(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
wgk germany 3
rtecs ss8050000
f 8-10-23
hazardclass 6.1
packinggroup iii
hs code 29215119
hazardous substances data 106-50-3(hazardous substances data)
msds information
provider language
c.i. 76060 english
sigmaaldrich english
acros english
alfa english
p-phenylenediamine usage and synthesis
outline 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.
the domestic development and production of p-phenylenediamine started earlier. before 2003, the major manufacturers were concentrated in jiangsu and zhejiang area with the total number of enterprises being more than 20. in 2004 china's total production capacity of p-phenylenediamine can be about 13,500 tons/year. market research has demonstrated that p-phenylenediamine in general exhibit a situation of supplying being more than the demand of the situation. since the 1990s, the demand can increase annually at a rate of 3% -5%. the difficulty of transportation of phenylenediamine and pollution caused by p-phenylenediamine production pollution has also largely limited the production and yield of p-phenylenediamine.
p-phenylene diamine rubber antioxidant as the antioxidant variety in rubber industry with the largest consumption, the production capability and yield of domestic production of p-phenylenediamine-class antioxidant has maintained rapid growth in recent years with the annual increasing rate from 2002 to 2008 being 28.1% which is comparable with the average annual growth rate of domestic tire (22.6 %). from the perspective of future market development, our country will still be a large demand for p-phenylenediamine-class rubber antioxidant. in recent years, with the eastward shifting of the global tire industry, china has become the world's largest tire producer with major foreign tire companies constructing joint ventures or wholly-owned enterprises in china. in the past five years, domestic tire production has an average annual growth rate being maintained at 20%. although severely affected by the global financial crisis in late 2008, tire production in 2008 still was up to 546.15 million (nbs) with an increase of about 7%. according to the prediction of automobile tires, in 2008 to 2010, domestic demand for rubber phenylenediamine antioxidant was maintained at an average annual growth rate of about 5%; from 2010 to 2015, there is decrease on the demand with the average annual growth rate being about 8 %. therefore, in 2010, 2015, the domestic demand for p-phenylenediamine rubber antioxidant will expected to reach 98,000 tons and 14.4 million tons.
the above information is edited by the chemicalbook of dai xiongfeng.
chemical properties it is white to purple red crystal. it will turn purple red or dark brown when exposure to the air. it can be dissolved in water, alcohol, ether, chloroform and benzene.
application it is important dye intermediates and is mainly used in the manufacture of dyes and sulfur dyes; it can also be used for the production of fur black d and rubber antioxidant dnp, 288, dop, dbp etc. p-phenylenediamine can also be used as the raw material of cosmetic hair dye “wuersi d”, gasoline polymerization inhibitor and developer.
production method it can be obtained from the reduction of p-nitroaniline via iron in acid medium. put the iron into hydrochloric acid and heat to 90 °c. add with stirring of p-nitroaniline. after completion of the adding, have them reacted at 95-100 ℃ for 0.5h, and then add drop wise of concentrated hydrochloric acid so that the reduction reaction is completed. after cooling, use saturated sodium carbonate solution for neutralizing to ph7-8, after boiling and have hot filtration; use host water to wash the filter cake. the filtrate and washings were combined and subject to concentration under reduced pressure; after cooling crystallization or vacuum distillation, we can obtain the p-phenylenediamine with the yield of being 95%.
category pesticide
toxicity grading highly toxic
acute toxicity oral- rat ld50: 80 mg / kg; oral - mouse ldl0: 100 mg / kg.
irritation data skin- rabbit 250 mg / 24 hours, moderate.
hazardous characteristics of explosive it is explosive when mixed with air.
flammability and hazard characteristics it is combustible upon fire, heat and oxidants with combustion releasing toxic fumes of nitrogen oxides.
storage characteristics treasury: ventilation, low-temperature and dry; store it separately from oxidants and food additives.
extinguishing media carbon dioxide, sand and water spray.
professional standards twa 0.1 mg / m³; stel 0.3 mg / m3.
chemical properties off-white flakes
usage a hair dye component, paraphenylenediamine, as a contact allergen for treatment of inflammatory diseases.
general description a white to purple crystalline solid (melting point 234 f) that turns purple to black in air. flash point 309 f. toxic by skin absorption, inhalation or ingestion. used for production of aramid fiber, antioxidants, as a laboratory reagent, in photographic developing, and as a dye for hair and furs.
air & water reactions oxidizes on exposure to air. the finely powdered base if suspended in air poses a significant dust explosion hazard. soluble in water. even as a solid will spot downwind areas purple/black (roger patrick, dupont engineer).
reactivity profile p-phenylenediamine is the stongest of the weak aromatic bases. p-phenylenediamine neutralizes acids in weak exothermic reactions to form salts. may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. reacts readily with oxidizing agents .
fire hazard combustible material: may burn but does not ignite readily. when heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. contact with metals may evolve flammable hydrogen gas. containers may explode when heated. runoff may pollute waterways. substance may be transported in a molten form.

Details

henan sunlake enterprise corporation is located in henan province, the central plain of china , which enjoys favorable geogeaphical position and convenient transportion. the comany was established in june 1998 , until now having more than 18 years experience in manufacturing & exporting chemical raw material .
sunlake is a professional manufacturer engaged in producing and selling chemicals,including organic & inorganic chemicals , pigments & dyestuffs , water treatment chemicals , food & feed additives and others . these products have been being well exported to europe , southeast asia , the middle east , africa , south america and some other countries and areas.
we sincerely welcome foreign friends to visit our plant for cooperation. with the idea of "quality first,credit priority, excellent service", we are highly acknowledged by customers for good quality and competitive price. more importantly , the company has a strong r & d team who are professional engineers and scholars with ph. d. .so we are confident to serve you better with our high - quality products and professional team.
we are taking great efforts to provide our customers with demanded goods and professional services, continuously improve our core ability of competition and get the momentum for sustainable development ,which finally makes us being a reliable and professional supplier in international market.
we welcome any inquiries from all customers of the world, and sincerely hope to cooperate with you for a brilliant future!
our advantages:
i). we have abundant professional production experience.
ii). we have our own chemical factory.
iii). sample is free of charge.
iv). reasonable price, excellent quality & attentive service
v). prompt reply: we can reply your inquiry and email within 24 hours.
vi). fast delivery: the delivery time is about 10-20 days after receiving the deposit.
vii). we have passed the lfgb, sgs, stc, hsl and some other tests.
viii). we have a unity cooperation team.
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