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.
- Caustic (causing chemical burns). - Slippery or soapy to the touch (due to the caustic reaction dissolving the surface of the skin and fingerprint). Common cleaners have history of including inorganic ingredients like bleach, sodium hydroxide, âmetasilicatesâ and âcausticsâ that are contained in many cleaners.