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Catalog Number:
30690
CAS Number:
10102-17-7
Sodium thiosulfate pentahydrate
Grade:
meets FCC specifications
Purity:
99.0-100.5% (Assay)
Documents
$18.53 /250G
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Product Information

Sodium thiosulfate pentahydrate is a versatile compound widely recognized for its applications in various industries, particularly in photography, water treatment, and analytical chemistry. This crystalline solid is known for its ability to act as a reducing agent and a dechlorinating agent, making it invaluable in the treatment of wastewater and in the removal of chlorine from drinking water. In photography, it serves as a fixer, helping to stabilize images by removing unexposed silver halides. Additionally, its role in analytical chemistry includes serving as a titrant in iodometric titrations, allowing for precise measurements in quantitative analysis.

The unique properties of sodium thiosulfate pentahydrate, such as its high solubility in water and its relatively low toxicity, make it an excellent choice for researchers and industry professionals seeking safe and effective solutions. Its ability to neutralize harmful substances and its effectiveness in various chemical reactions highlight its importance in both laboratory and industrial settings. Whether you are involved in environmental science, photography, or chemical analysis, sodium thiosulfate pentahydrate offers a reliable and efficient option for your needs.

CAS Number
10102-17-7
Purity
99.0-100.5% (Assay)
Grade
meets FCC specifications
Molecular Formula
Na2S2O3·5H2O
Molecular Weight
248.18
MDL Number
MFCD00149186
PubChem ID
61475
Melting Point
48 ºC (Approx.)
Density
1.69 g/mL at 25 °C
Appearance
White crystalline powder or chunks
Conditions
Store at RT
General Information
CAS Number
10102-17-7
Purity
99.0-100.5% (Assay)
Grade
meets FCC specifications
Molecular Formula
Na2S2O3·5H2O
Molecular Weight
248.18
MDL Number
MFCD00149186
PubChem ID
61475
Melting Point
48 ºC (Approx.)
Density
1.69 g/mL at 25 °C
Appearance
White crystalline powder or chunks
Conditions
Store at RT
Properties
Additional property information coming soon!
-
Safety and Regulations
Hazmat
No
Antibiotic
No
DEA-regulated
No
Warnings
-
Applications

Sodium thiosulfate pentahydrate is widely utilized in research focused on:

  • Photography: It acts as a fixer in photographic processes, helping to remove unexposed silver halides from film, ensuring clear and stable images.
  • Water Treatment: This compound is effective in dechlorinating water, making it safer for aquatic life by neutralizing chlorine in swimming pools and industrial effluents.
  • Medical Applications: It is used in treating cyanide poisoning, providing a safe and effective antidote that converts toxic cyanide into a less harmful substance.
  • Analytical Chemistry: Sodium thiosulfate is employed in titrations to determine the concentration of oxidizing agents, providing accurate results in various chemical analyses.
  • Textile Industry: It serves as a reducing agent in dyeing processes, helping to achieve desired colors while minimizing environmental impact compared to harsher chemicals.

Citations