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This property of insolubility in a soap mass during processing to a transparent state is shared by the well-known phenolic germicides heretofore disclosed as useful in the conventional milled soapbars, for example, 2,2'methylenebis(3,4,6-trichlorophenol), 2,4,4'-trichlorocarbanilide, and 3,4',5-tribromosalicylanilide and the 4',5 -analogue thereof, as well as 2,4,4'-trichloro-2'-hydroxy diphenyl ether.
Useful soaps are the salts of fatty acids having about 12 to about 22 carbon atoms, with small proportions of fatty acids having 6-10 carbon atoms when coconut or other tropical nut triglyceride oils are included in the fat charge from which at least a portion of the soap is derived.
The soap at this reduced moisture content is still molten, and is next chilled rapidly on a chill roll to a temperature of 80.degree.-85.degree.F, the soap leaving the chill-roll in the form of chips.
There are essentially two different types of soap that can be made fom the glycerine by-product of the biodiesel production; one is a hard barsoap and the other a liquid all purpose soap.
The fully hydrogenated oils are best kept for use in a hard barsoap as the glycerine hardens fairly easily, whereas liquid canola,for example, is best kept for the liquid variety as it's cold flow properties are such that the glyerine wants to stay liquid.
Barsoap can be used for both body and hair soap, replacing "shampoo".
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