Applicants holding driving licence/learnerâs licence/conductorâs licence desire for noting change of address shall make an application on plain paper along with documents and any one of the following proof of address :
alkali refining. in fat and oil processing: Alkali refining. Many of these can be removed by treating fats at 40Â° to 85Â° C (104Â° to 185Â° F) with an aqueous solution of caustic soda ( sodium hydroxide) or soda ash (sodium carbonate). The refining may be done in a tank (in which case it is called batch or tank refining) or in a continuous system.
Webster Dictionary(0.00 / 0 votes)Rate this definition: 1  Caustic(adj) alt. of Caustical. 2  Caustic(adj) any substance or means which, applied to animal or other organic tissue, burns, corrodes, or destroys it by chemical action; an escharotic. 3  Caustic(adj) a caustic curve or caustic surface.