Basic Info.
Model NO.
Sodium Thiosulfate
Appearance
Powder
Grade Standard
Industrial Grade
Product Name
Sodium Thiosulfate
Other Name
Sodium Thiosulfate Pentahydrate
Sodium Thiosulfate Formula
Na2s2o3
Formula Weight
158.108
Boiling Point
100 ºC
Water-Solubility
Easy to Dissolve
Density
1.667 G/Cm³
Type(Grade)
Industry Grade
Sodium Thiosulfate Appearance
Colorless Transparent Crystals
Melting Point
48 ºC
Solubility
Soluble in Water
Fe
0.002% Max
pH Value
7.5
Sodium Thiosulfate Purity
99% Min
Storage
Dry Place
Transport Package
25kg Bag, or 1000kg Jumbo Bag
Specification
25kg bag, or 1000kg jumbo bag
Trademark
Kelai
Origin
China
HS Code
2830909000
Production Capacity
100000mt Per Year
Product Description
Sodium Thiosulfate Pentahydrate 99%/Sodium Thiosulfate 99% MIN
1.Brief Description
Molecular formula: Na2S2O3
CAS: 7772-98-7
Appearance:White powder
Properties: Single crystal is inclined white crytallized powder, a proportion of 1.667, soluble in water, alcohol, insoluble in air heating oxidation is decomposed into sodium and sulfur dioxide. In pure oxygen in combustion is generating sodium, method and sulfur.
2. Technical Data Sheet
3. Application
(1). It is mainly used as fixing agent in photography industry.
(2). It is used as reducing agent of dichromate in tanning, neutralizer of nitrogen-containing tail gas, mordant, bleach of wheat straw and wool, and dechlorination agent in pulp bleaching. It is also used in the manufacture of tetraethyl lead, dye intermediates and silver extraction from ore.
4.Packing and Loading
(1) . Packing : 25kg net/bag or customized bag .
(2) . Loading quantity : 25MT/20'container
Any interest or demand, pls feel free to contact with us .
1.Brief Description
Molecular formula: Na2S2O3
CAS: 7772-98-7
Appearance:White powder
Properties: Single crystal is inclined white crytallized powder, a proportion of 1.667, soluble in water, alcohol, insoluble in air heating oxidation is decomposed into sodium and sulfur dioxide. In pure oxygen in combustion is generating sodium, method and sulfur.
2. Technical Data Sheet
| 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 | --- | ---- |
3. Application
(1). It is mainly used as fixing agent in photography industry.
(2). It is used as reducing agent of dichromate in tanning, neutralizer of nitrogen-containing tail gas, mordant, bleach of wheat straw and wool, and dechlorination agent in pulp bleaching. It is also used in the manufacture of tetraethyl lead, dye intermediates and silver extraction from ore.
4.Packing and Loading
(1) . Packing : 25kg net/bag or customized bag .
(2) . Loading quantity : 25MT/20'container
Any interest or demand, pls feel free to contact with us .