Sodium Hydrosulfite
Purity:50%,74% 80%,85%, 88%,90%
Usage: Sodium Dithionite is an important auxiliary agent in textile industry, paper industry, dye and gasoline clay industry.
Na2CO3: 1.0-2.5%,
Na2S2O3: 1.5% max,
Na2S2O5: 3.5-7%,
Na2SO3: 0.6% max,
Fe: 18ppm max,
Water Insolubles: 0.1% max,
Other heavy metals(as Pb): 0.0001% max.
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