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P&B white big crystals Sodium Thiosulphate(Sodium Hyposulfite),pentahydrate 99% purity
P&B white big crystals Sodium Thiosulphate(Sodium Hyposulfite),pentahydrate 99% purity
Supplier Info
[China Supplier]
Contact Person : Mr. richard song
Tel : 86-371-86076288
Fax : 86-371-86076288
Product Detail
sodium thiosulphate 283230 Molecular Formula: Na2S2O3.5H2O Size: 8 -12mm Specification:99%min Package: 25kg/ bag

            Sodium Thiosulphate 99%, pentahydrate

Sodium thiosulfate (Na2S2O3), also spelled sodium thiosulphate, is a colorless crystalline compound that is more familiar as the pentahydrate, Na2S2O3•5H2O, an efflorescent, monoclinic crystalline substance also called sodium hyposulfite or “hypo.”

Specification:

Inspection Standard: HG/T 2328-2006.

ANALYSIS ITEMS

SPECIFICATION

RESULTS

PREMIUM GRADE

FIRST GRADE

PURITY  (Na2S2O3·5H2O)

% ≥

99

98

99.15

PH VALUE  (200 g/l liquor)

% ≤

6.5-9.5

7.5

SULPHIDE MASS FRACTION (basis as S)

% ≤

0.001

0.003

0.0009

MATTER INSOLUBLE IN WATER

% ≤

0.01

0.03

0.01

IRON  MASS FRACTION  (basis as Fe)

% ≤

0.002

0.003

0.0018

APPEARANCE

CLEAR MONOCLINIC CRYSTAL

CONCLUSION

PREMIUM GRADE

 General Use:

Its major use is in photography for dissolving silver halides from photographic emulsions;Sodium thiosulfate is also used in the tanning of leather; in bacteriological water assessment; and in treating cyanide poisoning; for automatic hand warmers.

Packing:

25/50kg woven PP bags with PE inner, or 1MT Jumbo bags.

Shipment time:     

About 15days after payment receipt.

Payment terms:    

by L/C or by T/T.

Please do not hesitate to contact with us for more details.

Our company is specialized in manufacture and export for chemicals, Sodium Thiosulfate is our main item, please contact us, if you take an interest.

P&B white big crystals Sodium Thiosulphate(Sodium Hyposulfite),pentahydrate 99% purity

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