Mudanjiang Fengda Chemicals Import & Export Corporation

Sodium Hydrosulfite

• Category :

  Paint and Coatings

• Synonyms :

  Sodium dithionite hydrate;Sodium hydrosulphite;Sodium dithionite;disodium dithionite;

• CAS NO :

  7775-14-6

• EC NO :

  231-890-0

• Molecular Formula :

  Na₂O₄S₂

• Molecular Weight :

  174.1071

• Main Specifications :

• InChI :

  InChI=1/2Na.H2O4S2/c;;1-5(2)6(3)4/h;;(H,1,2)(H,3,4)/q2*+1;/p-2

• Packing :

  In iron drum with inner plastic bags,50kgs net.

• Product description :

  Index	I	II	III
  Sodium Hydrosulphite	90% min	88% min	85% min
  Water insoluble	0.1% max	0.1% max	0.1% max
  Sodium thiosulfate: Na2S2O3	1.2 % max	0.8% max	1.2% max
  Sodium metabisulfite: Na2S2O5	5-7 %	5-7%	5-7%
  Sodium bisulfite:NaHSO3	0.5 max	0.5% max	0.5% max
  Sodium carbonate: Na2CO3	1.5% max	1.5% max	1.5% max
  Sodium formate: HCOONa	0.5 % max	0.05% max	0.05% max
  Zn	0.0001 % max	0.0001% max	0.0001% max
  Fe	0.005 % max	0.005% max	0.002% max
  Physical appearance	White crystalline powder

• Molecular Structure :