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99% Sodium thiosulfate Na2S2O2 Photo grade Industrial grade
Product Description
99% Sodium thiosulfate Na2S2O2 Photo grade Industrial grade
1, Chemical name: Sodium thiosulfate
2, H.S code:28328000
3, Molecular formula: Na2S2O2@5H2O
4, Molecular weight: 248.17
5, Properties: Monoclinic crystal, Melting point: 40-45degree, Relative density: 1.729(17degree).
6, Packing: 25kg, 50kg plastic woven bag, or following your demand.
99% Sodium thiosulfate Na2S2O2 Photo grade Industrial grade Specification:
Item |
Photographic grade |
Industrial grade |
Anhydrous grade |
Appearance |
colorless transparent crystal |
colorless transparent crystal |
white powder |
Assay |
≥99.00% |
≥98.5% |
≥97.0% |
Water Insoluble matter |
≤0.01% |
≤0.03% |
≤0.03% |
Sulfide |
≤0.001% |
≤0.003% |
≤0.001% |
Fe |
≤0.001% |
≤0.003% |
≤0.005% |
PH |
6.5~9.5 |
6.5~9.5 |
6.5~9.5 |
Water solution reaction |
in accordance with the test |
in accordance with the test |
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Granularity(g/g) |
12~16 |
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Application
Sodium thiosulfate is mainly used for fixing agent photography industry. Secondly Sodium thiosulfate as tanning time chromate salt reductants and nitrogen exhaust of neutralizers, salt, wheat and hair bleach and pulp bleaching agent of chlorine when. Sodium thiosulfate also used for tetraethyl lead, dye intermediates, etc and ore mention silver etc.
Storage
a.Store Sodium thiosulfate in a cool and dry place.
b.Prevent from direct sunlight, water and moisture.
c.Avoid contact with strong add oxidants.
d. Sodium thiosulfate do not stores it for long time.
Company Information
Xiamen Ditai Chemicals Co., Ltd is a professional chemical company in China. Specializing deal and export various kinds of quality chemicals since 1997. The products Include industry chemical, Animal feed additive, Food additive, Agrochemical, Fertilizer, pharmaceuticals, water treatment and Minerals. Our management team has over 17 years of combined expertise meeting the needs of clients. We are proud our quality chemcials and service was approbated by the clients in the worldwide.
Best Regards
Susan Chen
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Xiamen Ditai Chemicals Co., Ltd.
8fl, hongsheng building,
west hexiang road, Xiamen, China.
Tel: 86-592-2680887
Fax: 86-592-2680880
Web: ditaichem.en.made-in-china.com