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Sell Zinc Oxide Pharmaceutical Grade USP34

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Brand: Metals Kingdom
型号: USP34
规格: 99.85% min
Price: 2800.00USD/mt
Min.Order: 1 mt
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Delivery: Shipment within 10 days since the date of payment
Address: China
Valid until: Never Expire
Updated on: 2017-06-02 14:19
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Details

CAS NO. : 1314-13-2
EINECS: 215-222-5
Molecular Formula : ZnO
Molecular Weight : 81.38

Properties : White powder,stable under normal temperature, good hiding power and colouring power.Insoluble in water and alcohol ,soluble in acid ,alkali and amkonium solution.
Use : Zinc Oxide Pharmaceutical Grade USP34 is mainly used for bandage,medicine,cosmetic,plaster,adhesive plaster,dental impression   pastezinc ointment and etc
Storage : Store at a cool and dry place.
Packing : 25Kg woven bags lined with plastic bag(special packing can be made according to clients' requirement).
Specification USP34 ( %

Idex item

Standard

Assay(ZnO)

99.0%-100.5%

identification

A:When stongly heated,it assumes a yellow color

that disappears on cooling

B:Asolution of it in a slight excess of 3N

hydrochloric acid responds to the tests for

Zinc<191>

Alkalinity

Mix 1.0g with 10ml of hot water,add 2 drops of

phenolphthalein TS,and filter;if a red color

is produced.not more than 0.30ml of 0.10 N

hydrochloric acid is required to discharge it

Loss on ignition

not more than 1.0%

As

not more than 6ppm

Carbonate and color of solution

Mix 2.0g with 10ml of water,add 30ml of 2N

sulfuric acid,and heat on a steam bath,with

contant stirring;no effervescence occours

and the resulting solution is clear and colorless

Lead(Pb)

Add 2g to 20ml of water,stir well,add 5ml of

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