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Sodium Formaldehyde Sulfoxylate

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Chemical Formula

NaHSO2 CH20 2H20

CAS Reg. No.

149-44-0

Appearance

It is a clean white product, sold in four grind sizes :

- Pea
- Rice
- Coarse Powder
- Powder

Specifications :

Assay 98% min. (as dihydrate, by iodine titration)
pH of 2% Solution 9.5 - 10.5
Alkalinity as Sodium Hydroxide Above 0.3%
Sulfide Content None (tested by lead acetate paper)
Solubility in Water Should readily make a 40% solution
Loss on Drying 20 - 24% (Azeotropic distillation)
Melting Point 63° C

 
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