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Chemical test for Tragacanth

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Chemical test for Benzoin

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Chemical test for Benzoin Objective:  To perform the chemical test for BENZOIN Biological source: It is a balsamic resin obtained from Styrax benzoin. Fam- Styraceae   Physical characteristics: Appearance           - Crystalline Colour                   - Greyish brown Odour                    - Aromatic and characteristics, balsamic Shape                    - Tear Taste                      - sweet and slightly acrid Sr. No. Test Observation Inference 1. Heat 0.5g of substance in dry test tube Evolve white fumes which condense to form white crystalline sublimate in the upper part of tube. Benzoin present 2. Alcoholic solution + water White milky solution formed Benzoin present 3. Alcoholic solution of litmus treat with litmus paper Acidic to litmus paper. Benzoin present 4. Heat 0
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