white crystals Sodium Thiosulphate, Hyposulfite,pentahydrate 99%

sodium thiosulphate Molecular Formula: Na2S2O3.5H2O Molecular Weight: 248.17 Specification:99%min Package: 25kg/ bag

                            sodium thiosulphate

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.

white crystals Sodium Thiosulphate, Hyposulfite,pentahydrate 99%