Hydroquinone 123-3...

Hydroquinone  123-31-9

Hydroquinone 123-31-9

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1 Kilogram

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Keywords

123-31-9 Hydroquinone Hydroquinone

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  • Appearance:conform
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  • ProductionCapacity:1|Metric Ton|Day
  • Storage:conform
  • Transportation:by air

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Details:

Hydroquinone Basic information
Product Name: Hydroquinone
Synonyms: 1,4-Benzenediol (hydroquinone);1,4-Dihydroxy-benzeen;1,4-Dihydroxybenzen;1,4-dihydroxybenzen(czech);1,4-Dihydroxy-benzol;1,4-Diidrobenzene;4-Hydroxyphenol;alpha-hydroquinone
CAS: 123-31-9
MF: C6H6O2
MW: 110.11
EINECS: 204-617-8
Product Categories: Intermediates of Dyes and Pigments;Redox Catalysts (Environmentally-friendly Oxidation);Environmentally-friendly Oxidation;Synthetic Organic Chemistry;Aromatics;Building Blocks;Chemical Synthesis;Nutrition Research;Organic Building Blocks;Oxygen Compounds;Phytochemicals by Plant (Food/Spice/Herb);Polyols;Vaccinium myrtillus (Bilberry);PINDAC
Mol File: 123-31-9.mol
Hydroquinone Structure
 
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.

 

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