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SELENOUS ACID Extra Pure

SELENOUS ACID Extra Pure

SELENOUS ACID Extra Pure

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Description

Confirms to USP
Selenious acid
Article No. 05680 Grade Extra Pure
Purity 93% CAS No. 7783-00-8
Molecular Formula H2SeO3 Molecular Weight 128.97
H.S. Code 2811.1990 Shelf Life 60 Months
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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

Packings
100 g 00100
1000 g 01000

Safety Information
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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