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Phenolphthalein, ACS Grade, Sigma-Aldrich

Catalog No. 01259058 Shop All MilliporeSigma Supelco Products
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01-258-807 500 g
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Catalog No. 01-259-058 Supplier MilliporeSigma Supelco Supplier No. 105945100G
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Description

Phenolphthalein is an indicator for acid-base titration reactions. It changes from colorless to violet-red between pH 8. 3 to 9. 8, it is red in extremely acidic solutions, and colorless in extremely alkaline solutions.

It is present as a nonionic, lipophilic lactone in aqueous neutral solutions. It exists as a hydrophilic dianion in alkaline solutions.

TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 77-09-8
Molecular Weight (g/mol) 318.32 g/mol

Specifications

Grade ACS
Color White
pH 8 to 10
Quantity 100 g
Chemical Name or Material Phenolphthalein
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