Manufacture Top Quality 99% Min Small/Big-Grained Sodium Thiosulfate Pentahydrate

• Customization: Available
• CAS No.: 10102-17-7
• Formula: Na2s2o3.5H2O
• Model NO.: JC-Na2s2o3.5H2O-01
• EINECS: 600-156-5
• Appearance: Granule
• Grade Standard: Industrial Grade
• Melting Point: 48.5°c
• Density: 1.01g/Ml
• Colour: White Transparent
• Odor: No Smell
• pH Value: 7.0-9.0
• Expiration Date: 2 Years
• MOQ: 25 Tons
• Sample: Free
• Bag Marks: Customizable
• Hazardous: No
• Transport Package: PP Bag
• Specification: 25kg/50kg/1000kg
• Trademark: N/M
• Origin: China
• HS Code: 28323000
• Production Capacity: 20000tons/Month

Product Description

Detailed Photos

Product Description

1. Basic Information
    - Chemical Name: Sodium thiosulfide.
    - Chemical Formula: Na₂S₂O₃·5H₂O.  
    - Physical Properties: Usually exists as colorless, transparent crystals or white powder. It is odorless or has a faint sulfur - like odor. It is highly soluble in water, and the aqueous solution is weakly alkaline.

2. Chemical Properties
    - Reducing Property: It is a strong reducing agent. It can react with many oxidizing substances. For example, it can react with iodine to form sodium iodide and sodium tetrathionate, which is the basis for its use in iodometric titrations.
    - Complexing Property: It can form complexes with certain metal ions. For instance, it reacts with silver ions to form a soluble complex, which is important in photographic processing.

Product Parameters

ITEMS	UNIT	QUALITY STANDARD	RESULTS
Sodium Thiosulfate Content (Mass Fraction as Na2S2O3·5H2O)	%	≥99.0	99.1
Ferric Content (Mass Fraction as Fe)	%	≤0.003	0.001
Water Insoluble Substance (Mass Fraction)	%	≤0.03	0.009
Sulfide Content (Mass Fraction as Na2S)	%	≤0.003	0.001
Sodium Chloride Content (Mass Fraction Basis for NaCl )	%	≤0.20	0.03
PH Value	_	7.0-9.0	8.5
APPEARANCE	White transparent crystalline particles
CONCLUSION	Qualified

Packaging & Shipping

25kg/50kg bag---27tons/1FCL without pallet
1000kg bag---25tons/1FCL without pallet

Application

 

Photography Industry: It is used as a fixer in photography. It dissolves the unexposed silver halides on photographic film or paper, making the image stable and permanent.

Water Treatment: It is used to remove chlorin e from water. Sodium thiosulfide reacts with chlorin e to produce harmless chloride ions, thus reducing the harm of chlorin e to the environment and organisms.

• Gold Mining: In the gold - extraction process, it is used to extract gold from ores. It forms a stable complex with gold, which helps to separate gold from other minerals.

• Chemical Analysis: In analytical chemistry, it is widely used in iodometric titrations to quantitatively determine the amount of oxidizing agents such as iodine, chlorin e, and bromin e.

 

 

 

 

 

 

Certifications

Company Profile

Shandong Jiuchong Chemical Company Limited was founded in 2016, which is located in Weifang City, Shandong Province, China. We have 228 square meters of office space. Now Jiuchong chemical is a large modern international chemical enterprise with more than 28 series. Since our establishment, the company has gradually established and improved a sound supply chain system, quality monitoring system and service system, ensuring products quality and service. 
At the same time, relying on our own geographical location and resource advantages, our company is committed to the optimization of a variety of chemical supply chain, including magnesium chloride, sodium metabisulfite, sodium bicarbonate, calcium chloride, magnesium sulfate, polyaluminium chloride, aluminium sulfate, industrial salt, soda ash etc. 
Our products are sold well in 288 domestic cities and more than 36 foreign countries. Now the company has won the praise and trust of domestic and foreign customers. Based on stable quality and output, good team service and staff efforts, we will continue to develop domestic and foreign markets.
Jiuchong chemical takes "integrity, innovation and development" as the concept, puts integrity in the priority position in serving customers, and guarantees high quality products and satisfactory cooperation for customers experience. Your satisfaction is our driving force. Quality is the soul of enterprise and that is what we have always done. In the future, Shandong Jiuchong Chemical Company Limited hopes to build a brilliant tomorrow with you!

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