Description
Specifications Table
| Product Name | Sodium thiosulfate (0.2 N) AVS TITRINORM? volumetric solution, aqueous |
|---|---|
| Quantity/Pack Size | 1 L |
| Form | Aqueous solution |
| Grade | Volumetric standard (AVS TITRINORM?) |
| Application | Iodometric titrations, redox titrations, chlorine determination |
Product Description
When precision matters in your laboratory work, having a reliable volumetric solution is non-negotiable. The Sodium Thiosulfate 0.2N AVS TITRINORM? solution from Avantor is specifically formulated to deliver consistent and accurate results in titrimetric analyses. This aqueous solution is a staple in analytical chemistry, particularly for iodometric titrations where even minor deviations can compromise your data.
What sets this solution apart is its certification as an AVS TITRINORM? volumetric standard. This means each batch undergoes rigorous quality control to ensure the concentration is precisely 0.2N, eliminating the need for time-consuming standardization in your lab. Whether you’re determining chlorine levels in water samples or analyzing oxidizing agents, this solution provides the reliability researchers and students demand.
The 1L packaging is ideal for laboratories with moderate to high throughput, reducing the frequency of reorders while maintaining freshness. The aqueous form ensures immediate solubility and homogeneity, so you can start your titrations without additional preparation. For educational institutions, this solution serves as an excellent teaching tool, demonstrating the principles of redox chemistry with dependable results.
At eqipped, we understand that lab supplies are more than just products—they’re the foundation of your experiments. That’s why we’ve partnered with Avantor to bring you solutions that meet international standards, giving you confidence in every drop you measure.
Need a volumetric solution that won’t let you down? Order Sodium Thiosulfate 0.2N today and experience the difference precision makes.
Applications in Your Lab
This versatile solution finds applications across various analytical procedures:
In environmental testing, it’s commonly used to determine residual chlorine in water samples through back-titration methods. The reaction with iodine is so consistent that it’s often the first choice for teaching titration techniques in academic labs. For industrial quality control, particularly in paper and textile manufacturing, this solution helps monitor bleaching processes by quantifying oxidizing agents.
Researchers working with redox reactions appreciate how the 0.2N concentration provides a good balance between sensitivity and practical measurement volumes. The solution’s stability when stored properly means you can rely on it for months without recalibration, making it cost-effective for long-term projects.
Why This Solution Stands Out
The AVS TITRINORM? certification isn’t just a label—it represents a commitment to accuracy. Each bottle comes with a certificate of analysis that details the exact normalization, traceability to primary standards, and expiration date. This level of documentation is particularly valuable for labs operating under ISO or GLP standards where method validation is required.
The aqueous formulation eliminates concerns about solubility that can plague solid sodium thiosulfate preparations. You’ll notice how quickly it dissolves in your samples, ensuring homogeneous reactions from the first drop. The amber bottle packaging protects the solution from light degradation, maintaining its potency throughout its shelf life.
Storage and Handling Recommendations
To maintain the solution’s integrity, store it in a cool, dark place away from direct sunlight. The original amber bottle provides excellent light protection, but additional shielding never hurts for long-term storage. Always use clean, dry pipettes to avoid contamination that could affect your titration endpoints.
While sodium thiosulfate solutions are generally stable, it’s good practice to verify the concentration periodically if you’re using it for critical applications. The solution has a typical shelf life of 12 months when stored properly, but you’ll find the exact expiration date clearly marked on each bottle.
Safety Considerations
This solution is considered non-hazardous under normal laboratory conditions. However, as with any chemical, proper lab safety practices should be followed. Wear appropriate personal protective equipment including gloves and safety glasses when handling. In case of skin contact, rinse thoroughly with water. The solution is not volatile, so no special ventilation is required beyond standard lab practices.
FAQs
What is the exact concentration of this sodium thiosulfate solution?
This is a certified 0.2N (0.2 normal) solution, which equates to approximately 0.2 mol/L of sodium thiosulfate. The exact concentration is verified through titration against a primary standard and documented in the certificate of analysis.
Can I use this solution for food or pharmaceutical testing?
While this is a high-purity volumetric solution, it’s primarily designed for general analytical use. For food or pharmaceutical applications, you should verify if additional certifications or grades are required for your specific regulatory environment.
How should I dispose of unused solution?
Small quantities can typically be disposed of by dilution with water and flushing with plenty of water, following your institution’s chemical waste disposal guidelines. For larger volumes, consult your local environmental regulations or your institution’s safety officer.
Does this solution require any preparation before use?
No additional preparation is needed. The solution is ready to use directly from the bottle. However, it’s good practice to gently invert the bottle a few times before use to ensure complete homogeneity.
What’s the difference between this and solid sodium thiosulfate?
This volumetric solution offers several advantages over solid forms: it eliminates weighing errors, ensures complete dissolution, and comes pre-standardized. You save time and reduce potential errors in your titrations, making it ideal for routine analyses.
