BRAINCAKEQualitative Tests for Carboxylic Acids
Carboxylic acids are identified by their acidity. They are weak acids, but strong enough to react with carbonates and release carbon dioxide.
Method: add aqueous sodium carbonate (or sodium hydrogencarbonate, or solid carbonate) to the sample.
• Positive result: effervescence (fizzing).
• Bubble the gas through limewater: it turns milky (cloudy), confirming CO2.
Sign in free to see the rest of this lesson, the R.E.C.I.P.E. recall steps and the quiz
BrainCake is free. Make an account in seconds and pick up where this page stops.
More in Chromatography and Qualitative Analysis
- Thin-Layer Chromatography
- Rf Values
- Gas Chromatography
- Retention Times and Peak Areas
- Qualitative Tests for Alkenes
- Qualitative Tests for Haloalkanes
- Qualitative Tests for Phenols
- Qualitative Tests for Carbonyls
All 10 lessons in Chromatography and Qualitative Analysis · All OCR A-level Organic Chemistry topics