This oil closely resembles cocoa-nut and palm-nut oils and is stated to saponify readily and yield a soap free from odour. |
The purpose of an alkali is to saponify the oils and dislodge ordinary soil and other matter. |
First saponify 100 parts house grease and 100 parts ordinary grease and make a run soap. |
But to simplify the operation, he preferred to saponify the fat by means of lime. |
They are then placed in fairly strong limes for two or three days to swell the fibres and saponify the grease. |
They also saponify and emulsify the grease, and it is obvious, therefore, that liming can be carried too far. |