Selenious Acid, Reagent

Molecular Formula
H2SeO3
Catalog Number
S1027
Supplier/Brand
Spectrum Chemical
CAS Number
7783-00-8

Selenious Acid, Reagent is a chemical compound used in changing the color of steel and nitric acid. The Reagent grade denotes that this chemical is the highest quality commercially available and that the American Chemical Society has not officially set any specifications for this material. Spectrum Chemical manufactured Reagent grade products meet the toughest regulatory standards for quality and purity.


Synonyms: Selenium Dioxide, Hydrated

Shipping Information

DOT: UN3283, Selenium compound, solid, n.o.s. (selenious acid), 6.1, PG III

Largest individual container shippable via:
UPS/FedEx Ground: 12 kg    UPS Air: 500 g    FedEx Air: 50 kg

Additional UPS-imposed hazardous material charge.
Tariff No. 2811196090

Storage Information

DELIQUESCENT: Keep tightly closed under inert gas.

Certificates of Analysis

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2023