Phenolphthalein
Phenolphthalein is an organic chemical compound with the molecular formula C₂₀H₁₄O₄. 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 pink or red under alkaline conditions.
Poison Notice: In accordance with the Poison Act 1952, for POISON items marked with "Poison", the required original purchase order or POISON SIGNED ORDER document must be submitted BEFORE receiving the POISON stock(s). The document must include the purpose of usage for each poison item, the Purchaser's name, original signature, and original company stamp, as applicable.
Product Specifications
Phenolphthalein is an organic compound with the molecular formula C₂₀H₁₄O₄ and CAS Number 77-09-8. It has a molecular weight of approximately 318.33 g/mol and is commonly supplied as a white to pale yellowish-white crystalline powder. It is practically insoluble in water but soluble in alcohol and certain organic solvents.
Phenolphthalein is valued for its colour-changing properties and applications in analytical chemistry. It is commonly used as an acid-base indicator in volumetric titration, particularly for determining the endpoint of acid-base reactions. Its indicator transition occurs approximately between pH 8.2 and 10.0, changing from colourless in acidic or neutral solutions to pink or red in alkaline solutions.
Other applications include laboratory pH testing, analytical chemistry procedures, educational experiments, and scientific 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: Phenolphthalein is a hazardous chemical classified as a suspected mutagen, a Category 1B carcinogen, and a Category 2 reproductive toxicant under the referenced supplier SDS. It may cause skin irritation and presents potential long-term health risks following exposure. Avoid inhalation of dust and direct contact with the eyes and skin. Handle in a properly ventilated laboratory or suitable chemical fume hood. Wear appropriate personal protective equipment, including chemical-resistant gloves, safety goggles, and protective laboratory clothing. Avoid unnecessary exposure and ensure that the container remains tightly closed when not in use. Store in a secure, clearly labelled container in a cool, dry place. Follow the supplier's Safety Data Sheet (SDS) for proper handling, storage, and disposal.
Available Options
| SKU | Description /size | Stocks | Unit Price (RM) | Quantity |
|---|---|---|---|---|
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SKU: CRM-027750-500ML R&M Phenolphthalein, 0.1% Alc, 500mL (Poison) 8 units left |
R&M Phenolphthalein, 0.1% Alc, 500mL (Poison) | 8 units left | RM 57.00 |
RM 57.00
|
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SKU: CRM-027850-1L R&M Phenolphthalein, 1% Alc, 1L (Poison) 7 units left |
R&M Phenolphthalein, 1% Alc, 1L (Poison) | 7 units left | RM 121.00 |
RM 121.00
|
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SKU: CRM-645600-100G R&M Phenolphthalein, A.R, 100g (Poison) 5 units left |
R&M Phenolphthalein, A.R, 100g (Poison) | 5 units left | RM 66.00 |
RM 66.00
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SKU: CMK-1072330100 MERCK Phenolphthalein indicator ACS,Reag. Ph Eur, 100g (Poison) 11 units left |
MERCK Phenolphthalein indicator ACS,Reag. Ph Eur, 100g (Poison) | 11 units left | RM 765.00 |
RM 765.00
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