Of the natural fats or glycerides contained in oils the most important in addition to palmitin are stearin and olein, and these it may be sufficient to regard as the principal fatty bodies concerned in soapmaking.
In the manufacture of stearin for candles, &c., the fatty matter is decomposed, and the liquid olein, separated from the solid fatty acids, is employed as an ingredient in soapmaking.
By boiling the livers at a somewhat high temperature, "unracked" cod oil is obtained, containing a considerable quantity of "stearine"; this fat, which separates on cooling, is sold as "fish stearine" for soapmaking, or as "fish-tallow" for currying.
There are manu factures of fire-bricks, tiles and pottery, besides brewing and soapmaking.
It is situated at the confluence of the Luckow with the Dniester and its principal resources are the recovery of salt from the neighbouring brine wells, soapmaking and the trade in timber.
The property of oils and fats of being readily hydrolysed is a most important one, and very extensive use of it is made in the arts (soapmaking, candle-making and recovery of their by-products).
The easiest method of soapmaking is to buy glycerin blocks, melting it in the microwave in a covered Pyrex container and pouring into soap molds.
In the history of soapmaking, plants have been used much longer than other soap products.
The North Country Soapmaking Library has an article on making simple and inexpensive wooden soap molds.
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