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.
LINK / CITE ADD TO WORD LIST. adjective. The definition of caustic is a substance that burns or eats away by chemical reaction or a hurtful remark or relationship. 1  An example of caustic is the effect mustard gas has on the skin. 2  An example of caustic is a boyfriend who is emotionally abusive to his girlfriend.