Acrylic acid, ester series polymerization inhibitor Hydroquinone


Acrylic acid, ester series polymerization inhibitor Hydroquinone

Basic Information:

Chemical name: hydroquinone
Synonyms: Hydrogen, HYDROXYQUINOL; HYDROCHINONE; HYDROQUINONE; AKOSBBS-00004220; hydroquinone–1,4-benzenediol; Idrochinone; Melanex
Molecular formula: C6H6O2
Structure formula:


Molecular weight: 110.1
CAS NO.: 123-31-9
EINECS No.: 204-617-8
Melting point : 172 to 175 ℃
Boiling point: 286 ℃
Density: 1.328g /cm³
Flash point: 141.6 ℃
Application area: hydroquinone is widely used in medicine, pesticides, dyes and rubber as important raw materials, intermediates and additives, mainly used in developer, anthraquinone dyes, azo dyes, rubber antioxidant and monomer inhibitor, food stabilizer and coating antioxidant, petroleum anticoagulant, synthetic ammonia catalyst and other aspects.
Character: White crystal, discoloration when exposed to light. Has a special smell.
Solubility: It is easily soluble in hot water, soluble in cold water, ethanol and ether, and slightly soluble in benzene.

Product Detail

Product Tags

Quality Index

Index name Quality Index
Appearance White or nearly white crystal
Melting point 171~175℃
content 99.00~100.50%
iron ≤0.002%
Burning residue ≤0.05%


1. Hydroquinone is mainly used as a photographic developer. Hydroquinone and its alkylates are widely used as polymer inhibitors in the process of monomer storage and transportation. The common concentration is about 200ppm.
2. It can be used as rubber and gasoline antioxidant, etc.
3. In the field of treatment, hydroquinone is added to the hot water and cooling
water of the closed circuit heating and cooling system, which can inhibit the corrosion of the metal on the water side. Hydroquinone with furnace water deaerating agent, in boiler water preheating deaeration will be added to the hydroquinone, in order to remove residual dissolved oxygen.
4. It can be used to manufacture of anthraquinone dyes, azo dyes, pharmaceutical raw materials.
5. It can be used as detergent corrosion inhibitor, stabilizer and antioxidant, but also used in cosmetics hair dye.
6.Photometric determination of phosphorus, magnesium, niobium, copper, silicon and arsenic. Polarographic and volumetric determination of iridium. Reducers for heteropoly acids, reducers for copper and gold.

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