Sodium Sulfite

Price:

Negotiation

Quantity Order:

Origin:

China

Payment Method:

Telegraphic Transfer (T/T)

Quantity:

100000MT

Pack. & Delivery:

25kg/50kg plastic woven bag

Product Description
Specification for Industry Grade and Food Grade:
Item Quality Index
Industry Grade Food Grade
Purity ( As Na2SO3) 96.0% min 98.0% min
Sodium sulphate ( SO4) 2.0% max 1.0% max
Chlorides ( As NaCL) 0.5% max 0.1% max
Arsenic ( As ) - 0.0002% max
Heavy metals ( As Pb ) - 0.0005% max
Iron ( Fe) 0.005% max 0.002% max
Water insolubles 0.05% max 0.02% max

Item Quality Index
Photo Grade Pharmaceutical Grade
Purity ( As Na2SO3) 98.0% min 98.0% min
Sodium sulphate ( SO4 ) 1.0% max 1.0% max
Chlorides ( As CL - ) 0.05% max 0.05% max
Arsenic ( As ) 0.0002% max 2ppm max
Lead ( As Pb) 0.0005% max 2ppm max
Iron ( Fe) 0.001% max 5ppm max
Selenium ( Se) 0.0001% max 1ppm max
Zinc ( Zn) 0.0001% max 1ppm max
Copper ( Cu ) 0.0001% max 0.1ppm max
Mercury ( Hg) 0.0001% max 0.1 ppm max

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