Sodium Thiosulfate 1 mol/l (1N) standard volumetric solution

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Product Name Sodium Thiosulfate 1 mol/L (1N) Standard Volumetric Solution
Concentration 1 mol/L (1N)
Volume 1 liter
Molecular Formula Na2S2O3
Molecular Weight 158.11 g/mol
CAS Number 7772-98-7
Appearance Clear colorless solution
Solubility Soluble in water
Storage Conditions Store in a cool, dry place away from heat and light
Shelf Life 2-3 years
Usage Used for titration and standardization purposes in analytical chemistry
FAQ
What is Sodium Thiosulfate 1 mol/L (1N) standard volumetric solution used for?

Sodium Thiosulfate 1 mol/L (1N) standard volumetric solution is commonly used in various industries for titrations and analytical chemistry purposes. It is particularly useful in determining the concentration of oxidizing agents, such as bleach, in a given solution.

How is Sodium Thiosulfate solution prepared for titrations?

To prepare Sodium Thiosulfate 1 mol/L (1N) standard volumetric solution,
- Measure out the appropriate amount of Sodium Thiosulfate pentahydrate (Na2S2O3·5H2O) using a balance.
- Dissolve the measured amount of Sodium Thiosulfate in distilled water in a volumetric flask.
- Dilute the solution to the mark on the volumetric flask using distilled water and mix thoroughly to ensure uniform concentration.

What factors should be considered when using Sodium Thiosulfate solution in titrations?

When using Sodium Thiosulfate solution in titrations, it is essential to consider the following factors:
- Store the solution in a cool, dark place to prevent oxidation.
- Use freshly prepared solution for accurate results.
- Standardize the solution against a known concentration of iodine solution before use.
- Use appropriate indicators for color change detection during titrations.
- Handle the solution with care as it may cause irritation to skin and eyes.

How can the concentration of Sodium Thiosulfate solution be verified?

The concentration of Sodium Thiosulfate solution can be verified through a process known as standardization. The solution is titrated against a known concentration of iodine solution, which allows for the determination of the exact concentration of Sodium Thiosulfate. By comparing the volume of Sodium Thiosulfate solution required for titration with the iodine solution, the concentration can be calculated and adjusted if necessary.

What are the safety precautions to be mindful of when handling Sodium Thiosulfate solution?

When handling Sodium Thiosulfate solution, it is important to observe the following safety precautions:
- Wear appropriate personal protective equipment, including gloves and safety goggles.
- Avoid direct contact with skin or eyes, and wash thoroughly with water if contact occurs.
- Work in a well-ventilated area to prevent inhalation of fumes.
- Do not ingest the solution, and keep it out of reach of children and pets.
- In case of accidental ingestion or exposure, seek medical attention immediately.
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