Lesson 4

Lubricants

Topics

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  • Numerical based on saponification value

    1 Numerical based on saponification value : 5 gm of vegetable oil was saponified using excess alcoholic KOH (0.5 N).

    5 gm of vegetable oil was saponified using excess alcoholic KOH (0.5 N). The mixture required 15 ml of 0.05 N HCl While blank titration required 45 ml of HCl. Find the Saponification value of oil. Weight of oil 5 gm

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    2 Numerical based on saponification value : 5 gm of oil was saponified with 50 ml of 0.5 alcoholic KOH.

    5 gm of oil was saponified with 50 ml of 0.5 alcoholic KOH. After refluxing for 2 hours , the mixture was titrated by 15 ml of 0.5 N HCl Find sap value

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