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HYDROQUINONE
Product Name HYDROQUINONE
Company Catalog TOP-RT0014
CAS No. 123-31-9
Specifications Photographic Grade,Technical Grade
Packaging 25kg/bag
Product Description

 

Hydroquinone(HQ)
2.Photographic Grade,Technical Grade
3.Cas no.:123-31-9
4.white or off-white powdery crystal
5.25kgs/ bag

hydroquinone for face cream

 

 

(1) Photographic Grade
Molecular Formual: 1,4-C6H4(OH)2 
Molecular weight: 110.12 (According to the international atomic weight of 1987)
Specification: Content: 99% - 101%
Usage: Generally for photograph, dye, pesticide rubber, chemical industry, medicine, polymer retarder, desulphurization in fertilizer, urea synergist antioxidant, analyse chemical reagent and so.
Packing: 25kg (net weight) kraft paper bag lined with two plastic bags.

(2) Technical Grade 
Molecular Formual: 1,4-C6H4(OH)2
Molecular weight: 110.12 (According to the international atomic weight of 1987)
Specification: Content: ≥98.5%
Usage: Generally for photograph, dye, pesticide rubber, chemical industry, medicine, polymer retarder, desulphurization in fertilizer, urea synergist antioxidant, analyse chemical reagent and so.
Packing: 25kg (net weight) kraft paper bag lined with two plastic bags

 

 

Name of product

HYDROQUINONE

 

 

 

 

Source of sample

Workshop

 

Spec.

Photo grade

 

Item

Specification

Result

Appearance

White acicular crystal or crystal powder

White acicular crystal or

crystal powder

 

Content(%)

99-101

99.8

 

Melting point(°C)

171-175

171.3-172.5

 

Residue after ignition(%)

0.05

0.03

 

Fe(%)

0.002

<0.002

Pb(%)

0.002

<0.002

 

 

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