Description
Specifications Table
Product Name – Sodium hydroxide solution, N/10 Solution
Quantity/Pack Size – 500 ml
Form – Liquid
Grade – Laboratory Reagent
Application – Titration, neutralization reactions
Product Overview
This N/10 (0.1N) sodium hydroxide solution is a precisely standardized laboratory reagent designed for accurate volumetric analysis. The solution is prepared using high-purity sodium hydroxide (NaOH) dissolved in deionized water, ensuring minimal impurities that could interfere with titration endpoints. With its exact 0.1N concentration, this solution eliminates the need for time-consuming standardization procedures in routine lab work. The reagent is stabilized to maintain its concentration over time, reducing the risk of carbon dioxide absorption that typically affects alkaline solutions. Packaged in a durable HDPE bottle with a tamper-evident seal, the solution remains protected from atmospheric contamination. The clarity of the solution allows for easy visualization during titrations, while its consistent quality ensures reproducible results across multiple experiments. This ready-to-use solution is particularly valuable for laboratories requiring frequent titrations, as it maintains its potency for extended periods when stored properly. The solution’s formulation meets standard laboratory requirements for alkalimetric titrations, making it a reliable choice for both qualitative and quantitative chemical analysis.
FAQs
1. How should I verify the concentration of this N/10 sodium hydroxide solution before use?
While this solution comes pre-standardized, you can verify its concentration by titrating against a primary standard like potassium hydrogen phthalate (KHP) using phenolphthalein as an indicator. The exact procedure involves dissolving a known weight of KHP in deionized water and titrating with the NaOH solution until a persistent pink color appears.
2. What precautions should I take when handling this sodium hydroxide solution?
Always wear appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and a lab coat. Work in a well-ventilated area or under a fume hood, as the solution can release corrosive vapors. Avoid skin and eye contact, and never pipette by mouth. In case of spills, neutralize with a weak acid like acetic acid before cleaning.
3. Can this solution be used for non-aqueous titrations?
This aqueous sodium hydroxide solution is specifically formulated for aqueous titrations. For non-aqueous titrations, you would typically need a different solvent system and often a different base strength. The presence of water in this solution makes it unsuitable for most non-aqueous applications where moisture must be strictly controlled.
4. What is the typical shelf life of this N/10 sodium hydroxide solution?
When stored properly in its original tightly sealed container at room temperature, this solution maintains its concentration for approximately 6-12 months. Over time, sodium hydroxide solutions tend to absorb carbon dioxide from the air, forming sodium carbonate which can affect titration accuracy. For critical applications, we recommend re-standardizing the solution periodically.
5. How does the plastic packaging affect the solution’s stability compared to glass bottles?
The HDPE plastic packaging used for this solution offers several advantages over traditional glass bottles. It’s more resistant to breakage, lighter in weight, and less prone to leaching alkali from the container walls. Modern laboratory-grade plastics are specifically treated to be chemically inert with sodium hydroxide solutions, ensuring the concentration remains stable throughout the product’s shelf life.
