4.1 (b) To conduct a qualitative test for fat

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Presentation transcript:

4.1 (b) To conduct a qualitative test for fat

Before you start get or make a copy of this Table of results Sample Translucent spot Before drying After drying Oil Water

Cut two pieces of brown paper to similar size. Step 1 Cut two pieces of brown paper to similar size.

Place 2-3 drops of oil on paper A. Step 2 Place 2-3 drops of oil on paper A.

Place 2-3 drops of water on paper B. Step 3 Place 2-3 drops of water on paper B.

Leave both pieces of paper to dry. Step 4 Leave both pieces of paper to dry.

Hold both pieces up to the light when dry. Step 5 Hold both pieces up to the light when dry.

Expected Result Positive: translucent spot Negative: no translucent spot

Step 6 Table of Results: Sample Translucent spot Before drying After drying Oil Water

END