FOB Price
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Minimum Order
Localité:
China
Prix de commande minimale:
-
Commande minimale:
20 Metric Ton
Packaging Detail:
25kg/bag
Delivery Time:
within 15 days after receving the advance payment
Supplying Ability:
30000 Metric Ton per Year
Payment Type:
T/T, L/C
Personne àcontacter 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.
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Index name
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Index
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Note
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||
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*0%specification
|
*8%specification
|
*5%specification
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|||
|
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
|
