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Hydroquinone

Pubdate:2016/04/09 Others views:2606

 Hydroquinone (HQ)

Chemical Name  1,4-Benzenediol 

Molecular Formula   C6H6O2

Molecular Weight  110.11

CAS#   123-31-9

Specifications   GB/T 22959-2009

  ItemSpecifications 
 Photographic GradeIndustrial Grade
Appearancewhite needle or powder crystalwhite or gray white needle or powder crystal
Melting Point               (℃) 171-175169.5
Residue on Ignition        (%)Max.0.050.3
Heavy metals (as Pb)       (%)Max.0.002
Iron                      (%)Max.0.002
SolubilityMeet the standardsMeet the standards
Purity                     (%)Min99.5-10199

Properties   Hydroquinone, Photographic Grade, is a white crystalline solid, the density is 1.34g/cm3, Hydroquinone contact can react with strong oxidizer. Hydroquinone by high thermal decomposition let out poisonous gases. Soluble in hot water, ethanol and ethyl ether, slightly soluble in benzene..

Applications Generally for photograph, dye, pesticide rubber, chemical industry, medicine, polymer retarder, desulphurization in fertilizer, urea synergist antioxidant, analyse chemical reagent.HQ is used primarily as a photographic developer. Hydroquinone and alkylate is widely used for monomer stored process of adding inhibitor.It can also be used as antioxidant for rubber and gasoline.used as oxygen scavenger of boiler water.manufacturing anthraquinone dyes, azo dyes, pharmaceutical raw materials

Storage  Store closed containers in a cool, dry, well-ventilated area. Avoid exposure to direct sunlight.

Packing   kraft paper bag lined with two plastic bags. Net weight 25 kg per bag.

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