Chemistry A-Level
azo dyes
What azo dyes means in Chemistry A-Level, as defined for AQA.
Definition of azo dyes
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Reference: AQA
Strongly coloured compounds for which aromatic amines are the feedstock, the amine being converted to a diazonium salt below 10 °C and then coupled.
Topics that use azo dyes
- Preparation (A-level only) (AQA A-Level)
Related terms
- carbon chain length
- excess ammonia
- further substitution
- liberating the free amine
- nitrile reduction
- unreactive aryl halides
- tin and hydrochloric acid
Using azo dyes in the exam
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