Castor oil: Physical and chemical tests / Analysis of crude drugs
| SI.No | Test | Observation | Inference |
| 1. | Add 5ml of light petroleum ether (40 ο -60ο) to 10ml of castor oil | A clear solution results and on increasing the petroleum ether about 15ml, turbid mixture will be obtained | Castor oil present |
| 2. | Oil + equal volume of alcohol and cool to 0οC for 3hrs | A clear liquid is obtained | Castor oil is present. |
CONCLUSION
From the above morphological characters and chemical tests the given crude drug is identified as castor oil.
REFERENCES
Kokate CK. Practical Pharmacognosy, 4 edition, VallabhPrakashan. Delhi; 1994: 98
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