Phenolphthalein LR

Phenolphthalein LR

Available Sizes:

• 10g
• 50g

Please enquire about pricing and availability.

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General Chemical Information

• Formula: C₂₀H₁₄O₄
• Molecular Weight: 318.32 g/mol
• CAS Number: 77-09-8
• Shelf Life: 5 years

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Specifications

• Assay: 98% min
• pH Indicator Range:
  • Below pH 8.3: Colourless
  • Above pH 10.0: Bright Pink
  • Transition Range: pH 8.3 ⇌ pH 10.0

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Common Uses

Phenolphthalein is commonly used as an indicator in acid-base titrations. It also serves as a component of universal indicator, along with methyl red, bromothymol blue, and thymol blue.

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Hazard Statements

• H315: Causes skin irritation
• H319: Causes serious eye irritation
• H335: May cause respiratory irritation