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Potassium thiosulfate CAS 10294-66-3

Chemical name:Potassium thiosulfate

Synonymous names:

potassium thiosulfate

POTASSIUM HYPOSULFITE

POTASSIUM THIOSULFATE

CAS No: 10294-66-3

EINECS : 233-666-8

Molecular formula: H3KO3S2

Molecular weight:154.24

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Structural formula

 Potassium thiosulfate CAS 10294-66-3  details

Product Description

 

Potassium thiosulfate solution:

 

FSCI-Item

Results

Appearance

Colorless transparent liquid

Content (K2S2O3),%

50.0

Potassium oxide (K2O), %

25.0 Min

Total sulfur (in S), %

17.0 Min

Water insoluble matter, %

0.05 Max

Sulfide (Na2S), %

0.005 Max

Iron,  %

0.05 Max

pH value (20℃)

7.0-9.0

Sulfate,  %

0.50 Max

Density (20℃)

1.470-1.550

 

 

Potassium thiosulfate solids:

FSCI-Item

Specifications

Results

K2S202H20 (g100g)

≥96

98.13

Appearance

White powder

White powder

K2O content (glOg)S

≥44

44.98

Content (g/ 100g)

≥30

30.53

Sulfate (calculated as SO4) g/ 100g)

≤4

0.3

Ph-valuxc ( 10% aqueous solution)

6.0-9.0

7.1

Fe(g/00g)

≤400

11

 

Properties and Usage:

1. Fertilizer additives in the agricultural field: Potassium thiosulfate, as an important component of liquid fertilizer, can provide crops with essential sulfur and potassium nutrients. Sulfur is an important element for promoting crop growth and increasing yields, while potassium enhances crop resistance to drought and pests.

 

2. Optical and photographic fixatives: In traditional black and white photography, potassium thiosulfate is used as a fixative to terminate the film and paper development process and remove unreacted silver halide to prevent further darkening and fading of the image.

 

3. Water treatment: Potassium thiosulfate can be used as a precipitant in water treatment, especially for removing heavy metals from water bodies, such as reducing toxic hexavalent chromium to harmless trivalent chromium. In drinking water or wastewater treatment, potassium thiosulfate is used to remove excess chlorine

 

4. Chemical synthesis: Potassium thiosulfate can be used as a reducing agent and oxidizing agent in the chemical industry, and plays a key role in the synthesis of certain organic compounds.

 

5. Metal cleaner: Used to clean and treat metal surfaces to improve their finish and corrosion resistance.

 

6. Electroplating solution: used in silver plating process to improve the uniformity and adhesion of the electroplated layer.

 

Storage and transportation:

Store in a cool, ventilated warehouse. Keep away from fire and heat. Should be stored separately from acids, do not mix storage. Storage areas should be equipped with suitable materials to contain leaks.

Packaging specifications:

Net weight 25kg/bag, or customized packing according to customers' requirements.

 

 

 

 

 

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