How to pronounce "phenolphthalein" and what is the meaning of "phenolphthalein"?
phenolphthalein
noun
How to pronounce phenolphthalein?
The word phenolphthalein sounds like phe-nol-phtha-lein
/,finɑl'θeɪlin/
What is the definition of phenolphthalein?
nouna laxative used in many preparations under various trade names; also used as an acid-base indicator in titrations involving weak acids and strong bases because it is brilliant red at high alkalinity and colorless below pH 8
What is the definition of phenolphthalein?
- Phenolphthalein is a chemical compound that is commonly used as an indicator in acid-base titrations.
- It is a white or pale yellow crystalline solid that turns pink or magenta in the presence of a base.
What is the chemical formula of phenolphthalein?
- The chemical formula of phenolphthalein is C20H14O4.
What are some synonyms for phenolphthalein?
- Some synonyms for phenolphthalein are phthalein, Inol, and Erythrosine B.
In which industries is phenolphthalein commonly used?
- Phenolphthalein is commonly used in the pharmaceutical industry, chemical laboratories, and educational institutions.
What is the pH range for phenolphthalein as an indicator?
- Phenolphthalein is an indicator that has a pH range of approximately 8.2 to 10.0.
- It is colorless below pH 8.2 and turns pink above pH 10.0.
What are the safety precautions when handling phenolphthalein?
- When handling phenolphthalein, it is important to wear appropriate protective equipment such as gloves and goggles.
- It should be stored in a cool, dry place and kept away from heat, sparks, and open flames.
Is phenolphthalein toxic?
- Phenolphthalein is considered to be moderately toxic.
- Ingestion or prolonged exposure to large amounts of phenolphthalein may cause adverse health effects.
Can phenolphthalein be used as a laxative?
- Phenolphthalein has been used in the past as a stimulant laxative.
- However, it is no longer used for this purpose due to concerns about its safety and potential carcinogenicity.
Can phenolphthalein be used in food or cosmetics?
- Phenolphthalein is not approved for use in food or cosmetics.
- It is primarily used in laboratory settings and industrial applications.
Is phenolphthalein a controlled substance?
- Phenolphthalein is not a controlled substance and is generally available for purchase without restriction.
