Selenous Acid or selenious acid is the chemical compound with the formula H2SeO3. Structurally, it is more accurately described by (HO)2SeO. It is the principal oxoacid of selenium; the other being Selenic Acid.
|Description||white to off-white hygroscopic crystalline mass.|
|Residue on ignition||Max. 0.1 %.|
|Assay||Between 93.0% and 101.0%.|