2011年6月13日星期一

Sodium Thiosulfate

Chemical name: Sodium thiosulfate......
Our manufactory and company are biggest exporter in China, we can provide the best quality and price.
1, Chemical name: Sodium thiosulfate
2, Structural formula: 
3, Molecular formula: Na2S2O2· 5H2O
4, Molecular weight: 248.17
5, Properties: monoclinic crystal, Melting point : 40-45, Relative density : 1.729(17).
6, Quality standard:
 
Item
Photo grade
Tech grade
Anhydrous grade
Appearance
colorless transparent crystal
colorless transparent crystal
white powder
Assay
≥ 99.00%
≥ 98.5%
≥ 98.0%
Water Insoluble matter
≤ 0.01%
≤ 0.03%
≤ 0.03%
Sulfide
≤ 0.001%
≤ 0.003%
≤ 0.001%
Fe
≤ 0.001%
≤ 0.003%
≤ 0.001%
PH value
6.5-9.5
6.5-9.5
6.5-9.5
Granularity
12-16
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Resource:

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<a href="http://www.ecvv.com">www.ecvv.com</a> is an innovative and comprehensive business portal in China, dedicated to saving costs for Chinese SMEs to find buyers and export to overseas markets.

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