PHENOLPHTHALEIN INDICATOR
Pink Colour Indicator
Phenolphthalein is often used as an indicator in acid–base titrations. For this application, it turns colorless in acidic solutions and pink in basic solutions. ... It is a weak acid, which can lose H+ ions in solution.
- Usage unit
- Kg
- Quantity per unit
- 25
Description
Phenolphthalein is often used as an indicator in acid–base titrations. For this application, it turns colorless in acidic solutions and pink in basic solutions. ... It is a weak acid, which can lose H+ ions in solution.
Application
Phenolphthalein, (C20H14O4), an organic compound of the phthalein family that is widely employed as an acid-base indicator. As an indicator of a solution's pH, phenolphthalein is colourless below pH 8.5 and attains a pink to deep red hue above pH 9.0.
Notes
A strong acid- strong base titration is performed using a phenolphthalein indicator. Phenolphtalein is chosen because it changes color in a pH range between 8.3 – 10. It will appear pink in basic solutions and clear in acidic solutions.
Procedure
Useful area
Phenolphthalein is basic indicator which remain colorless in acidic and neutral solution and turns pink or magenta in basic solution. If few drops of NaOH is added again to the same solution, the solution become basic and the pink color of the phenolphthalein reappears.
Industrial area
Phenolphthalein is a colourless, weak acid which dissociates in water forming pink anions. Under acidic conditions, the equilibrium is to the left,and the concentration of the anions is too low for the pink colour to be observed.
Tag identification
Question: How to make phenolphthalein TEST solution?
Ans: Dissolve 10.0 g of phenolphthalein powder in 750 mL of ethanol and dilute to 1 L with distilled water. Add 0.1 N sodium hydroxide (NaOH) solution dropwise to the first permanent faint pink end point. Color and pH range: colorless 8.3-10.0 red.
Other names
PHENOLPHTHALEIN INDICATOR 25 Kg Powder PACK
Packing & supply
Available pack sizes
PHENOLPHTHALEIN POWDER is available in 100 gram, 200, 500, 1 Kg, 5 Kg, 25 Kg Powder Pack
Supply locations
PHENOLPHTHALEIN INDICATOR manufacturers, suppliers, exporters in Mumbai, Gandhidham, Kolkata, Varanasi, Visakhapatnam, Chennai, Fujairah, Dubai, Canada BC, Barka, Sohar, Muscat, Oman. Lab chemicals manufacturers, suppliers, exporters in India, UAE Middle East, Barka, Sohar, Muscat, Oman, Canada. PHENOLPHTHALEIN INDICATOR is available in small packing as well as in bulk. Buy premium quality PHENOLPHTHALEIN INDICATOR and other lab chemicals from one of the most trusted brands.
Need PHENOLPHTHALEIN INDICATOR for your operation?
Our team helps with product selection, dosage, safety data and delivery worldwide.
Request a quote