Hydroquinone 123-31-9 CAS NO.123-31-9

Min.Order Quantity:: 1 Kilogram

Purity:: 99%

Port:: Tianjin xingang

Payment Terms:: L/C,T/T,MoneyGram

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Product Details

Keywords

Hydroquinone
123-31-9
1,4-Dihydroxy-benzeen

Quick Details

ProName: Hydroquinone 123-31-9
CasNo: 123-31-9
Molecular Formula: C6H6O2
Appearance: white needle-like crystals or crystall...
Application: K channel agonist, antihypertensive
DeliveryTime: 12days
PackAge: in foil bag or customized
Port: Tianjin xingang
ProductionCapacity: 10 Metric Ton/Day
Purity: 99%
Transportation: by sea
LimitNum: 1 Kilogram
Heavy metal: less than 0.4%
Grade: Industrial Grade

Superiority

our company is a professional chemical raw materials manufacturer and exporter for many years in chemical market. there are more than 200 excellent staffs and four factories working for us .

company advantage:

1.place of origin in china with super quality by reasonable price.

2.fast delivery by safe express way to address specified.

3.lots of highly qualified engineers and experts to provide technical guideness and support for customers.

4. sample order are welcome.

5.a variety of payments, such as l/c, tt, , moneygram or other payments.

warm welcome to contact us to get more products information and details, i will send our product list for your choice.we are looking forward to our long term cooperation.

Details

hydroquinone chemical properties

mp	172-175 °c(lit.)
bp	285 °c(lit.)
density	1.32
vapor density	3.81 (vs air)
vapor pressure	1 mm hg ( 132 °c)
fp	165 °c
storage temp.	refrigerator
solubility	h₂o: 50 mg/ml, clear
water solubility	70 g/l (20 ºc)
merck	14,4808
brn	605970
stability:	stable. combustible. incompatible with strong oxidizing agents, strong bases, oxygen, ferric salts. light and air-sensitive. discolours in air.
cas database reference	123-31-9(cas database reference)
nist chemistry reference	hydroquinone(123-31-9)
epa substance registry system	1,4-benzenediol(123-31-9)

safety information

hazard codes	xn,n
risk statements	22-40-41-43-50-68-r68-r50-r43-r41-r40-r22
safety statements	26-36/37/39-61-s61-s36/37/39-s26
ridadr	2662
wgk germany	3
rtecs	mx3500000
hazardclass	9
packinggroup	iii
hs code	29072210
hazardous substances data	123-31-9(hazardous substances data)

msds information

provider	language
sigmaaldrich	english
acros	english
alfa	english

hydroquinone usage and synthesis

chemical properties	white needle-like crystals or crystalline powder
usage	k channel agonist, antihypertensive
usage	hydroquinone
usage	reducing agent prevents polymerization of resin monomers lightens darkened skin, light sensitive
usage	use as photographic reducer and developer; as reagent in the determination of small quantities of phosphate; as antioxidant. depigmentor
general description	light colored crystals or solutions. may irritate the skin, eyes and mucous membranes. mildly toxic by ingestion or skin absorption.
air & water reactions	darkens on exposure to air and light. miscible in water. solutions become brown in air due to oxidation. oxidation is very rapid in the presence of alkali.
reactivity profile	hydroquinone is a slight explosion hazard when exposed to heat. incompatible with strong oxidizing agents. also incompatible with bases. hydroquinone reacts with oxygen and sodium hydroxide. reacts with ferric salts . hot and/or concentrated naoh can cause hydroquinone to decompose exothermically at elevated temperature. (nfpa pub. 491m, 1975, 385)
health hazard	hydroquinone is very toxic; the probable oral lethal dose for humans is 50-500 mg/kg, or between 1 teaspoon and 1 ounce for a 150 lb. person. it is irritating but not corrosive. fatal human doses have ranged from 5-12 grams, but 300-500 mg have been ingested daily for 3-5 months without ill effects. death is apparently initiated by respiratory failure or anoxia.
fire hazard	dust cloud may explode if ignited in an enclosed area. hydroquinone can react with oxidizing materials and is rapidly oxidized in the presence of alkaline materials. oxidizes in air.