Description
Specifications Table
Product Name – Thymolphthalein Indicator Solution
Quantity/Pack Size – 125 ml
Form – Liquid
Grade – Analytical
Application – pH indicator (alkaline range)
Product Overview
Thymolphthalein indicator solution is a highly sensitive pH reagent designed for precise alkaline range detection, offering a distinct color transition from colorless to blue between pH 9.3 and 10.5. This analytical-grade solution ensures accuracy in titration, acid-base reactions, and buffer system monitoring. Formulated for stability, it minimizes degradation over time, maintaining consistent performance in laboratory settings. The liquid form allows for easy dispensing and uniform mixing, reducing measurement errors. Its high purity guarantees interference-free results, making it a reliable choice for critical experiments. The solution is compatible with standard lab glassware and does not require additional preparation. With a long shelf life when stored properly, this indicator solution provides cost-effective, repeatable results for routine and specialized applications. The 125 ml pack size offers an optimal balance between volume and storage efficiency, catering to both small-scale and bulk usage requirements.
FAQs
1. What is the exact pH range where thymolphthalein changes color?
The color transition occurs sharply between pH 9.3 and 10.5, shifting from colorless in acidic/neutral conditions to blue in alkaline environments.
2. Can this indicator be used with non-aqueous solvents?
Thymolphthalein is primarily designed for aqueous systems. For non-aqueous applications, solubility tests are recommended as performance may vary.
3. How does temperature affect the indicator’s performance?
Extreme temperatures can alter the transition pH slightly. For optimal accuracy, use at standard lab conditions (20–25°C).
4. What is the recommended storage condition to maintain stability?
Store in a tightly sealed amber glass bottle at room temperature, away from direct light and moisture to prevent degradation.
5. Are there any known chemical incompatibilities?
Avoid contact with strong oxidizing agents or reducing agents, as these may permanently alter the indicator’s color properties.










