Selenium Dioxide CAS 7446-08-4

CAS No.: 7446-08-4
Type.: Chemical
Appearance: Powder
Molecular Formula： C6H10CaO4
Shelf Life： 2 years
Min Order Quantity: 1 ton

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Items	Result
Selenium Dioxide, ≥98.0 %	98.10%
Hydrochloric acid insoluble, ≤ 0.02 %	0.0015%
Fe, ≤0.002 %	0.0008%
Loss on drying, ≤ 1.0 %	0.3%
Selenate and sulphate, ≤ 0.1 %	0.07%
Water dissolution test eligible	eligible
Cl, ≤0.005%	0.0011%
Pb, ≤10ppm	5ppm
As, ≤10ppm	3ppm
Hg, ≤10ppm	0.1ppm

(1) Selenium dioxide is used in the production of electrolytic manganese metal.

(2) Used for the production of sodium selenite.

(3) Selenium dioxide used as organic compounds oxidant, catalyst, chemical reagent, a variety of inorganic selenium compound manufacturing raw materials.

As a special reagent for plant base, Selenium dioxide can also be used to precipitate zirconium, hafnium and prepare selenium compounds to react with ammonia to form nitrogen and selenium, with hydroxylamine hydrochloride to form nitrogen and red brown amorphous selenium, and with nitric acid to form selenite.

(4) Selenium dioxide is used to make high purity selenium and other selenium compounds.It is also used in photocopiers, rectifiers, etc.