Longcom Enterprise Limited
Main products:Food Additives,Feed Additives,Vitamins,Chemicals,Sweeteners
Products
Contact Us
  • Contact Person : Ms. Hu Lily
  • Company Name : Longcom Enterprise Limited
  • Tel : 86-551-5369018
  • Fax : 86-551-5310086
  • Address : Anhui,Hefei,11 Tianzhu Road, High-Tech Zone, Hefei, Anhui, China
  • Country/Region : China
  • Zip : 230088

Sodium thiosulfate

Sodium thiosulfate
Product Detailed
Sodium thiosulfate used in fixers, plating,, reductant, dechlorinating agent, sulfur dyeing agent, as a blush preventive

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

----

Granularity(g/g)

12~16

---

----

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.”

The thiosulfate anion is tetrahedral in shape and  is notionally derived by replacing one of the oxygen atoms by a sulfur atom in a sulfate anion. The S-S distance indicates a single bond, implying that the sulfur bears significant negative charge and the S-O interactions have more double bond character. The first protonation of thiosulfate occurs at sulfur.

Sodium thiosulfate



Copyright Notice @ 2008-2012 ECVERY Limited and/or its subsidiaries and licensors. All rights reserved.