Factory Supply High Quality Sodium Thiosulphate 98% Cas 7772-98-7 CAS NO.7772-98-7

Zeyuan is a technology-based enterprise engaged in the R&D, poduction and sales of chemical products. Our products have been widely used in paper, leathers, electroplating, pharmaceutical intermediates, water treament and other fields, our success has been achieved through continuously improvement of our competitiveness, and by working to highest levels of accreditation for quality, providing good services for all our customers.

We can supply:
Q1. What are our payment terms?
Usually T/T; L/C; ; Paypal or other payment terms are all acceptable.

Q2. Is free sample available?
Yes. Free sample are available for customers. It is our pleasure for service for you.

Q3.What is your MOQ?
Normally speaking. Our MOQ is 1 standard package. But we can supply free sample for testing before mass order.

Q4.Is a discount possible?
Yes.we’ll give ou a good possible discount according to your order quantity and market price, etc. 

Q5. How about the packing?
We have standard package, special packages can be customized.

Q6.How long is your delivery time?
Generally it is with 7 days if the goods are in stock. According to quantity your required, the delivery time may slightly change. 

Q7. How to confirm the Product Quality before placing orders?
You can get free samples for some products. You only pay the shipping cost or arrange a courier to us and take the sample. You can also send us your product specifications and requests. We will manufacture the products according to your requests.

Q8.How do you treat quality complaint?
First of all. Our quality control will reduce the quality problem to near zero.If there is a real quality problem caused by us, we will send you free goods for replacement or refund your loss

Sodium Thiosulfate

Cas No: 7772-98-7

Molecular Formula: Na2S2O3/Na2S2O3 5H2O

Molecular weight : 158.108/248.17

Other names:  Sodium thiosulphate, Sodium hyposulfite, Hyposulphite of soda Sodium Hyposulfite (Na2S2O3), also spelled sodium thiosulphate, is an inorganic compound that is typically available as the pentahydrate, Na2S2O3·5H2O.

The solid is an efflorescent (loses water readily) crystalline substance that dissolves well in water. It is also called sodium hyposulfite or "hypo". It is on the World Health Organization's List of Essential Medicines,

the most important medications needed in a basic health system.

Properties：monoclinic crystal, relative density: 1.729(17℃). easy to be soluble in water. It is stable in neutral and alkaline solution. It has strong reductive ability. Aqueous solution is alkalescent.

Quality Index:

Application:
1.It is used chemical raw material used as a fixer in the photographic, film and printing industries.
2.Used as a reducing agent in tanning. It is used in the paper and textile industries to remove residual bleach and as a mordant.
3.Used in medicine as an antidote for cyanide poisoning, etc.
4.In water treatment:
   a) It is used as a dechlorination agent and fungicide for drinking water and wastewater;
   b) Copper corrosion inhibitor for circulating cooling water;
   c) Deoxidizer for boiler water system;
   d) It is also used for the treatment of cyanide-containing

Packing: net in 25kg bag. According to the customer’s requirement.

Storage: Store the product in a cool and dry place, prevent from direct sunlight, water and moisture, avoid contact with strong add oxidants,Do not stores it for long time.