离岸价格
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Minimum Order
位置:
China
最小订单价格:
-
最小订单:
20 Metric Ton
包装细节:
25kg/bag
交货时间:
within 15 days after we receive the advance paymen
供应能力:
30000 Metric Ton per Year
付款方式:
T/T, L/C
联系人 Ms. Wang
No. 38, industrial park, Guangzong Country,, Xingtai, Hebei
1.sodium hydrosulfite
2.Cas no.:********6
3.White crystalline powder
4.*0.5% ,*8.5% ,*5.5% min
5.*0kgs per drum
sodium hydrosulfite
1) Used as reducer, dyes
auxiliary of dyeing industry, synthetic dyes and intermediates.
(2) Used as bleaching agent of paper pulp in paper-making
industry.
(3) Used as bleaching agent of china clay in the ceramics
industry.
(4) Used as deoxidizer of rubber and styrene butadiene rubber
synthesis, developer in photo-taking industry.
(5) Used as reducing agent, bleaching agent in the industries
including pharmacy, food, metallurgy and leather
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No.
|
Index name
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Index
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Note
|
||
|
*0%specification
|
*8%specification
|
*5%specification
|
|||
|
1
|
Appearance
|
White crystalline
powder
|
White crystalline
powder
|
White crystalline
powder
|
Eye measurement
|
|
2
|
Hydros content
% ≥ |
*0.5
|
*8.5
|
*5.5
|
Compulsory test
|
|
3
|
Content of
insoluble substance in water % ≤ |
0.1
|
0.1
|
0.2
|
Spot test
|
|
4
|
Content of
sodium carbonate %≥ |
1
|
1
|
1
|
Spot test
|
|
5
|
Granularity
|
A, B
|
A, B, C
|
A, B, C, D
|
Compulsory test ( Eye
measurement )
|
|
6
|
Odor
|
Gentleness
|
Gentleness
|
Gentleness
|
Compulsory test
|
