Phenolphthalein standard solution
100μg/mL in Methanol
Reagent
Code: #223717
Alias
phenolphthalein; phenolphthalein, phenolphthalein, 3,3-bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone; [pH]
CAS Number
77-09-8
science Other reagents with same CAS 77-09-8
blur_circular Chemical Specifications
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Molecular Information
Weight
318.32 g/mol
Formula
C₂₀H₁₄O₄
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Registry Numbers
EC Number
201-004-7
MDL Number
MFCD00005913
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Storage & Handling
Storage
2-8°C, avoiding light
description Product Description
Used as an indicator in acid-base titrations, phenolphthalein standard solution changes color from colorless in acidic conditions to pink in basic solutions, making it ideal for detecting the endpoint in neutralization reactions. It is commonly employed in educational laboratories, quality control testing, and environmental analysis to determine the alkalinity of water samples. Due to its precise concentration in standard solution form, it ensures accurate and reproducible results in volumetric analysis. It is also used in some pharmaceutical formulations and industrial processes where pH monitoring is critical.
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