Sodium Hydrosulfite Specification
Appearance: Free-flowing white crystalline powder
Chemical Formula: Na2S2O4
Process: Manufactured by sodium formate
Molecular wt.: 174.
Bulk Density: 0.9
Melting Point: >300℃(Decomposes)
Solubility: Soluble in water, insoluble in alcohol and methanol.
Odor: None or slightly smell of sulfur dioxide
Shelf Life: 12 months
Grades: Grade Na2S2O4 Content(Min.)
Low Purity 70% Min, 74% Min, & 80% Min.
Standard Purity 85% Min & 88% Min.
High Purity 90% Min.
Packing: 50 kg/100 kg net in iron drum with double plastic liners,
Recyclable IBC.
UN No. : 1384
IMCO Class: 4.2
IMDG Page: 4262
HS CODE: 2831.1010
CAS No.: 7775-14-6
Package Class: Ⅱ
Warning: Flammable! May spontaneously ignite in moisture air or upon contact with water.
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