Home Chemnovo Acids-Inorganic Selenous Acid 93% Extrapure
02291
Selenous Acid 93% Extrapure
Confirms to USP Selenious acid
CAS : 7783-00-8
HS Code : 2811.19900
Molecular Formula : H2SeO3
Molecular Weight : 128.97
Physical Properties
Physical state at 20 °C
Solid |
Colour
White crystalline |
pH value
7 |
Melting point/ Freezing point [°C]
70 °C |
Density [g/cm3]
3.004 |
Solubility in water [% weight]
Soluble in cold water |
Specifications
Appearance
White crystalline powder |
Assay (as H2SeO3)
93 - 101% |
Residue on ignition (as SO4)
Max 0.01% |
Selenate and sulphate
Passes USP test |
Insoluble matter
1 gm in 5 ml water gives clear solution |
Safety Information and Hazard Symbols
Symbol: GHS06, GHS08, GHS09
Signal Word: Danger
UN No.: 3283
IMCO Class No.: 6.1
Packing Group: II
Hazardous Statement: H301-H331-H373-H410
Precaution Statement: P261-P273-P301 + P310-P311-P501
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