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Sodium Thiosulfate
Molecular Formula: Na2O3S2
CAS Number: 7772-98-7
UN Number: N/A
Dangerous Class: N/A
Grade: Industrial Grade
HS Code: 283230100000

Product Description

It's colorless and transparent columnar crystal.

Trait Service:

  • We support prompt delivery.

  • We promise high quality with competitive price.

  • Our complete operating system promises smooth exporting.

Product Specification





Water Insoluble




Iron (Fe)


Ph Value


Product Features

Sodium Thiosulfate pentahydrate 5-8 mm


Sodium Thiosulfate pentahydrate 1-5 mm


Sodium Thiosulfate pentahydrate ﹤2 mm

Packing & Loading


Product Application


1. used in photographic processing as a photographic fixer

2. electroplate applications in steel, as part of patina recipes for copper alloys

3. used in the tanning of leather

4. in PH testing of bleaching substances

5. in Waste water treatment, neutralizing bleached and chlorinated water.

6. to lower chlorine levels in swimming pools and spas following super chlorination

7. used in bleach

8. used in paper industry

9. used to remove iodine stains, e.g. After the explosion of nitrogen tri-iodide.

10. used in aquaculture

Loading Details


Quantity without pallets

Quantity with pallets

25 kg pp bag

27 MT/1080 Bags,

1*20 feet container

25 MT/1000 Bags,

1*20 feet container



1.  Do you have export experience?

We are an expert of chemicals international trade with 15 years experiences.


2.  How can you guarantee quality?

Always random sampling assay during production;
Always final inspection before shipment;
Always support SGS/BV test according to our customer’s requirements.


3.  How long will it take to deliver goods? 

Generally speaking, our delivery time is about 15 days after order confirmed.


4.  What’s your payment terms?

We support TT prepay, LC at sight, LC 30/60/90 days, also it’s possible to provide OA.


5.   Can you arrange sample to our office?

Sure, we can arrange sample for free. However, express cost will be paid by your side.


6.   What’s your trade mode?





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