Sodium Thisoulfate 99%min is our strong item ,and have passed through ISO9001:2008Quality Management System Certification...

Synonym: Sodium hyposulfite; Sodium subsulfite

Molecule Formula: Na2S2O3 ·5H2O    

Molecular Weight: 248

CAS No. : 7772-98-7

Property: Colorless, transparent single oblique crystals, specific gravity: 1.729.

It’s soluble in water easily, with strong reducing property.

Specification:

Grade	Photo	Tech
Na2S2O3·5H2O	99% Min	99.0% Min
Water Insoluble Matter	0.01% Max	0.01% Max
Na2S	0.001% Max	0.001% Max
Fe	0.002% Max	0.002% Max
PH value (200g/L solution)	6.5-9.5	6.5-9.5

Packing : Net each in 25kg plastic woven bag, lined with PE bag.

Usage:   Used in photographic, electroplate, purifying soft water and tanning processing hides, it also can be used as reducing agent, deoxidizer, sulfur dyeing agent, anti-white agent, detergent, disinfectant and color coat agent, etc.

Sodium Thiosulfate 99%min tech,photo grade