Yifan factory supply 99.5% Hydroquinone CAS 123-31-9-Cosmetic Raw Material-Shandong Yifan Chemical Technology co.,Ltd.-

Yifan factory supply 99.5% Hydroquinone CAS 123-31-9

1.Hydroquinone is used primarily as a photographic developer. Hydroquinone and alkylate is widely used for monomer stored process of adding inhibitor, the concentration of the commonly used about 200 PPM.

2.And gasoline used as rubber antioxidant and so on.

3.Processing field, the hydroquinone in closed circuit heating and cooling system of hot water and cooling water, the water side of metal corrosion effect. Hydroquinone in boiler water of deoxidizer, when the boiler water preheating oxygen adding
hydroquinone, to remove residual dissolved oxygen.

4.Made anthraquinone dyes, azo dye, and pharmaceutical raw materials.

5.The photometric determination of phosphorus, magnesium, niobium, copper, silicon and arsenic, etc. Iridium polarography and capacity method. Heteropoly acid reducing agent.

Product Name:	Hydroquinone
Quantity:	5000KG
Specification:	Company Standard
Item	Specification	Result	Conclusion
Appearance	White acicular crystal or crystal powder	White acicular crystal or crystal powder	confirm
Content(%)	≥99-101	99.9	confirm
Melting point(℃)	171-175	171.9-172.8	confirm
Residue after ignition(%)	≤0.05	0.03	confirm
Fe(%)	≤0.002	≤0.002	confirm
Pb(%)	≤0.002	≤0.002	confirm

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2.And gasoline used as rubber antioxidant and so on.

4.Made anthraquinone dyes, azo dye, and pharmaceutical raw materials.

5.The photometric determination of phosphorus, magnesium, niobium, copper, silicon and arsenic, etc. Iridium polarography and capacity method. Heteropoly acid reducing agent.

Product Name:	Hydroquinone
Quantity:	5000KG
Specification:	Company Standard
Item	Specification	Result	Conclusion
Appearance	White acicular crystal or crystal powder	White acicular crystal or crystal powder	confirm
Content(%)	≥99-101	99.9	confirm
Melting point(℃)	171-175	171.9-172.8	confirm
Residue after ignition(%)	≤0.05	0.03	confirm
Fe(%)	≤0.002	≤0.002	confirm
Pb(%)	≤0.002	≤0.002	confirm

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