sodium metabisulphite industrial grade ISO certificate high purity, low heavy metal the best price and quality

                                                SODIUM METABISULPHITE industrial grade 1. Molecular Formula : Na2 S2 O5

2. CAS# :          7681-57-4

3. HS Code:        28311000

4. Qualities are conformed to HG/T 2935-2006  

ITEMS	UNIT	SPECIFICATION
Purity	%min	96
As	(ppm) max	5
Fe	(ppm) max	50
Pb	(ppm) max	10
Cd	(ppm) max	10
PH		4-5
Water insolubles	(%)max	0.05

5. Packing :

Net 25kgs plastic woven bags with inner liner or as requested.

6. Storage:

   Sealed in cool dry place.

96% purity sodium metabisulphite industrial grade high quality