High Quality Water Treatment 99% Min Sodium Thiosulfate CAS 7772-98-7 Sodium Thiosulphate

• CAS No.: 7772-98-7
• Formula: Na2s2o3
• EINECS: 231-867-5
• Certification: CCIC, CIQ, ISO
• Purity: ≥99%
• Type: Sodium Thiosulfate
• Model NO.: 99%
• Appearance: White Crystal
• Grade Standard: Industrial Grade
• Molecular Weight: 158.11
• Storage Condition: 2-8°c
• Density: 1.01g/Ml at 25°c
• Application: Photography;Water Treatment;Gold Extraction
• Transport Package: Plastic Bag
• Specification: 25Kg / 50Kg / 200Kg / 1000 Kg or as your request
• Trademark: RUISUNNY
• Origin: China
• HS Code: 2830909000
• Production Capacity: 50000mt/Year

Product Description

Specification

                                                     Certificate of Analysis

ITEMS	STANDARD	RESULTS
NA2S2O3	99.0%min	99.35%
SULFIDE	0.001%max	0.0004%
IRON	0.001%max	0.0002%
WATER INSOLUBLE MATTER	0.01%max	0.006%
HEAVY METALS AS PB	0.001%max	0.0005%
PH	6.5-9.5	9.2

 

Product Description

Sodium thiosulfate, chemical formula Na2S2O3, is a colorless crystalline solid with certain solubility and stability. It is an important reducing agent and has a wide range of applications in chemical experiments and industrial production. The solution of sodium thiosulfate is alkaline with a pH of about 8-9, so it can be used to neutralize acidic solutions. It can react with oxidizing agents in redox reactions, such as with acidic potassium permanganate solution to produce manganese dioxide. In addition, sodium thiosulfate is photosensitive and is capable of photolytic reactions in the presence of light, and is therefore widely used in photographic and developing processes. However, it should be noted that sodium thiosulfate is toxic and skin contact and inhalation of its dust should be avoided. In summary, sodium thiosulfate has a number of characteristics in its physicochemical properties that make it an important chemical.

 

Application

 

Sodium thiosulfate, also known as sulfite, is a crystalline white compound with versatile uses.

Some common uses of sodium thiosulfate are as follows:

In photography, it serves as a fixing agent in the development process. It removes unexposed silver halides from film or paper, preventing further development and preserving the image.

In water treatment, sodium thiosulfate is employed to eliminate chlorine and other disinfectants. It acts as a reducing agent, neutralizing chlorine and making the water safe for various purposes.

In medical applications, sodium thiosulfate functions as an antidote for cyanide poisoning. It reacts with cyanide to produce a less toxic compound that can be expelled from the body.

Analytical chemistry employs sodium thiosulfate in different methods. It helps determine the concentration of iodine in a solution by reacting with iodine to form a colorless complex.

In the process of gold extraction, particularly in cyanidation, sodium thiosulfate aids in dissolving gold from ores and concentrates, simplifying the extraction of this valuable metal.

Overall, sodium thiosulfate finds broad applications in industries such as photography, water treatment, medicine, and analytical chemistry.

Packaging & Shipping

 

Company Profile

 

Wuhan Ruisunny Chemical Co.,Ltd was established in 2010 with registered capital of CNY 20 million, the company focuses on trading of such chemicals as WATER TREATMENT CHEMICALS, FOOD ADDITIVES , ORGANICS SILICONE and general INORGANICS/ORGANICS. Over the years of development, the sales of the company has extended to more than 50 countries or regions. Based on principle of Co-win, we are looking forward to cooperating with you!
 

Certifications

Exhibition

FAQ

1. who are we?
We are based in Hubei, China, start from 2010,sell to Southeast Asia(20.00%),South Asia(20.00%),Domestic Market(20.00%),South America(10.00%),North America(10.00%),Northern Europe(7.50%),Southern Europe(7.50%),Central America(5.00%). There are total about 101-200 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
Azodicarbonamide ,Hydrogen Peroxide ,Calcium Hypochlorite,SODA ASH,TRICHLOROISOCYANURIC ACID,VINYL SILICONE OIL and so on.

4. why should you buy from us not from other suppliers?
Wuhan Ruisunny Chemical Co.,Ltd was established in 2010 with registered capital of CNY 20 million, the company focuses on trading of such chemicals as WATER TREATMENT CHEMICALS, FOOD ADDITIVES and general INORGANICS/ORGANICS. Over the years of development,

5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,DDU,DAF;
Accepted Payment Currency:USD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A;
Language Spoken:English,Chinese