Molisch reaction
- noun
- /ˈmoʊlɪʃ ˌrɛkʃən/
- Specialized
- A positive Molisch reaction resulted in the appearance of a violet ring in the test tube.
Examples
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The Molisch reaction is commonly used in laboratories to identify the presence of carbohydrates in food samples.
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Chemistry students performed the Molisch reaction as part of their experiment on biomolecule detection.
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The Molisch reaction is a vital test in carbohydrate chemistry.
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Have you performed the Molisch reaction in your lab?
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A positive Molisch reaction resulted in the appearance of a violet ring in the test tube.
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Chemistry students performed the Molisch reaction as part of their experiment on biomolecule detection.
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The Molisch reaction is commonly used in laboratories to identify the presence of carbohydrates in food samples.
Synonyms
A chemical test that shows sugars in a liquid by making a violet ring
A lab test that shows sugar by making a purple ring
A chemical test that shows a violet ring when sugar is in a liquid
Surface Forms
Morphology
Molisch + reaction
The headword 'reaction' clearly signals a chemical process, so a learner would infer this is a chemical reaction named after someone. However, 'Molisch' is a proper name with no lexical meaning, so the specific function — a carbohydrate-detection test producing a violet ring — cannot be derived from the constituents. Because the phrase partly signals its domain (chemistry) but not the precise diagnostic meaning, it is best classified as semi-transparent.
Etymology
Molisch reaction is named after the scientist Hans Molisch, who showed a small chemical test that makes a 'violet ring' when 'carbohydrates' are present. That's why the name now means the simple test used to find 'carbohydrates'.