Phenolphthalein Indicator
CAS 77-09-8·C₂₀H₁₄O₄
Phenolphthalein powder and 1% alcoholic solution — colourless below pH 8.3, pink above.
Grades offered
- INDICATORIndicator GradeSpecified on colour-change behaviour at the transition pH.
- ARAnalytical ReagentHigh purity with certified assay and stated trace-impurity limits.
Typical applications
- Acid–base titration endpoint
- Phenolphthalein alkalinity of water
- Carbonation depth testing on concrete
Phenolphthalein Indicator
C₂₀H₁₄O₄ · M.W. 318.33 g/mol
- CAS
- 77-09-8
- Batch
- Use before
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Pack sizes
- 25 g
- 100 g
- 500 ml (1% solution)
Identification
| CAS number | 77-09-8 |
|---|---|
| Molecular formula | C₂₀H₁₄O₄ |
| Molecular weight | 318.33 g/mol |
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