Thymolphthalein
Thymolphthalein is an organic chemical compound with the molecular formula C₂₈H₃₀O₄. It is commonly used as an acid-base indicator in laboratory analysis, volumetric titration, pH testing, and analytical chemistry. It is particularly valued for its characteristic colour change from colourless to blue under alkaline conditions, making it useful in acid-base reactions and educational laboratory experiments.
Product Specifications
Thymolphthalein is an organic compound with the molecular formula C₂₈H₃₀O₄ and CAS Number 125-20-2. It has a molecular weight of approximately 430.54 g/mol and is commonly supplied as a white to pale crystalline powder. It is practically insoluble in water but soluble in alcohol and certain organic solvents.
Thymolphthalein is valued for its distinctive colour response under different pH conditions. It is commonly used as an acid-base indicator in volumetric titration, analytical chemistry procedures, pH testing, and laboratory experiments. Its pH transition range is approximately 9.3–10.5, changing from colourless under acidic or neutral conditions to blue under alkaline conditions.
Other applications include preparation of indicator solutions, chemical testing, educational laboratory experiments, and research involving acid-base reactions. The appropriate grade and purity should be selected according to the requirements of the intended application.
KSFE Malaysia supplies laboratory chemicals and scientific products for research institutions, educational facilities, and general laboratory applications.
Safety Note: Thymolphthalein is generally considered a low-hazard laboratory chemical in its solid form and is not classified as hazardous under GHS in several supplier Safety Data Sheets. However, dust may cause irritation if inhaled or if it comes into contact with the eyes and skin. Avoid unnecessary inhalation of dust and direct contact with the substance. Wear suitable personal protective equipment, including safety glasses, protective gloves, and appropriate laboratory clothing. Handle in a well-ventilated area and minimise dust generation. Avoid release into the environment, as some supplier classifications identify potential long-term hazards to aquatic life. Store in a tightly closed container in a cool, dry place, away from incompatible substances. Follow the supplier's Safety Data Sheet (SDS) for proper handling, storage, and disposal.
Available Options
| SKU | Description /size | Stocks | Unit Price (RM) | Quantity |
|---|---|---|---|---|
|
SKU: CRM-658900-5G R&M Thymolphthalein, pH Indicator, 5g 8 units left |
R&M Thymolphthalein, pH Indicator, 5g | 8 units left | RM 62.00 |
RM 62.00
|
|
SKU: CRM-658901-500ML R&M Thymolphthalein, 0.1%, pH Indicator, 500mL 9 units left |
R&M Thymolphthalein, 0.1%, pH Indicator, 500mL | 9 units left | RM 83.00 |
RM 83.00
|
Related Products
