Chemistry A-Level
Hydroxide precipitate colours
What Hydroxide precipitate colours means in Chemistry A-Level, as defined for OCR.
Definition of Hydroxide precipitate colours
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Reference: OCR
Adding sodium hydroxide solution gives a blue precipitate for Cu²⁺, green for Fe²⁺, reddish-brown for Fe³⁺, pale pink for Mn²⁺ and grey-green for Cr³⁺.
Topics that use Hydroxide precipitate colours
- Transition elements - 5.3.2 Qualitative analysis (OCR A-Level)
Related terms
- Anion tests with silver nitrate and barium salts
- Barium sulfate precipitation
- Ionic equations and charge notation
- Ionic equations and complex ion formation
- Qualitative anion tests
- Silver halide precipitates
- Test-tube scale qualitative analysis
- Ammonium identification
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