Sodium Thiosulfate Pentahydrate TCI O0522

Chemical Identity

Other names: Na2S2O3.5H2O
CAS No.: 10102-17-7
PubChem: CID 24477·SID 468592538
Formula: Na2O3S2
Molecular weight: 158.11 g/mol
Purity: >99.0%(T)

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: disodium;dioxido-oxo-sulfanylidene-lambda6-sulfane
SMILES: [O-]S(=O)(=S)[O-].[Na+].[Na+]
InChIKey: AKHNMLFCWUSKQB-UHFFFAOYSA-L

Rp 477.750,00

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Berat 300g

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Sodium Thiosulfate Pentahydrate (Na₂S₂O₃·5H₂O) is a chemical compound widely used in laboratory settings for its versatile applications in analytical and synthetic chemistry. As a metallic salt, it plays a crucial role in catalytic processes and redox reactions, particularly in the reduction of heavy metal ions such as lead and silver. Its chemical structure allows it to react with various substances, making it an essential reagent in qualitative and quantitative analysis. This compound is commonly found in chemical laboratories, especially in those conducting research related to environmental and industrial chemistry.

One of the key properties that make Sodium Thiosulfate Pentahydrate a preferred choice is its solubility in water and stable crystalline structure. These characteristics ensure consistent performance in chemical reactions and ease of handling. Additionally, its ability to form stable complexes with heavy metal ions enhances its utility in precipitation and titration processes. The compound's chemical reactivity and stability under normal conditions further contribute to its reliability in laboratory environments.

In Indonesian laboratories, Sodium Thiosulfate Pentahydrate is frequently used in research and testing related to redox reactions, water analysis, and metal ion detection. It is a staple in educational institutions and research facilities, supporting both basic and advanced chemical experiments. Its availability and effectiveness make it a standard component in many laboratory workflows, ensuring accurate and reproducible results.

TCI brochures (PDF)

Metallic Salts 2025-11-06 · p. 7

Related TCI products

Redox Reactions: Sodium Thiosulfate Pentahydrate is ideal for redox processes due to its ability to reduce heavy metal ions, making it valuable in electrochemical studies.
Water Analysis: It is commonly used in titration methods to determine the presence of dissolved metals in water samples, offering precise and reliable results.
Precipitation Reactions: Its capacity to form stable complexes with metal ions aids in qualitative analysis, helping identify unknown compounds through precipitation.
Metal Ion Detection: The compound reacts selectively with specific metal ions, enabling accurate identification in analytical chemistry experiments.
Environmental Testing: It is used in assessing the impact of heavy metals in soil and water, supporting environmental monitoring and remediation studies.

Brand	TCI
CAS number	10102-17-7
Molecular formula	—
Purity	—
Category	Chemistry > Catalysis and Inorganic Chemistry > Metallic Salts
Pack sizes	Available in various quantities suitable for different laboratory needs
Physical form	Crystalline solid
Storage	Store in a cool, dry place away from moisture and direct sunlight

Sodium Thiosulfate Pentahydrate should be stored in a cool, dry place to maintain its chemical stability and prevent degradation. It is recommended to use airtight containers to protect it from moisture and humidity, which can affect its solubility and reactivity. While it is generally safe to handle, care should be taken to avoid direct contact with skin and eyes, as it may cause irritation. In laboratory settings, it should be stored separately from strong oxidizing agents to prevent unwanted reactions. Proper labeling and storage conditions ensure the compound remains effective and safe for use in various analytical and synthetic applications.

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