Tangshan Sanjiang Chemical Co., Ltd.

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sodium metabisulfite

CAS No.	7681-57-4
Molecular	Na2S2O5
Physical Appearance	White or slightly yellowish crystalline powder
Purity	97%Min
Place of Origin	Hebei, China (Mainland)
Brand Name	Sanjiang

Minimum Order Quantity:	20 Ton
Price:	FOB Tianjin/Qingdao USD 230~255
Packaging Details:	Packing: in 25kg net PP woven bag with PE inner.
Delivery Time:	As per the quantity
Payment Terms:	L/C,T/T
Supply Ability:	3000 Ton per Month

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sodium metabisulfite

(1)Molecular formula: Na2S2O5

(2) Physical appearance: white or slightly yellowish crystalline powder

(3)Certification: ISO9001:2000

(4)Specification:Main Content: 97%min, Water Insoluble: 0.05%max, Iron: 50ppm max, Pb: 10ppm max, As: 2ppm max ,pH: 4.0-4.6

(5)Bag marks:Sodium metabisulphite, N.W.: 25kgs, G.W. 25.1kgs, Made in China.

(6)Main use: mineral separation, waste water disposing etc.

(7)Packing: external polypropylene woven bag, polyethylene plastic bag lining.

(8)Packing:25kgs net PP woven bag with PE liner

(9)Our main product,annual output over 30,000MT

TANGSHAN SANJIANG CHEMICAL CO., LTD.

CERTIFICATE OF ANALYSIS

Analyst: Gao Date: Nov. 10,2009

Test Item	Standard Request.	Results of Test	Individual Result
Appearance	White or light yellow crystalline powder	Meet the demand	Pass
Content (Na₂S₂O₅%)	≥97%	97.65%	Pass
SO2%	≥65%	65.82%	Pass
Fe%	≤0.005%	0.002%	Pass
Insoluble substance in water%	≤0.05%	0.01%	Pass
Heavy metal (Pb)%	≤0.002%	0.001%	Pass
As%	≤0.0002%	0.0002%	Pass
PH	4.0-4.6	4.4	Pass