In batch refining, the aqueous emulsion of soaps formed from free fatty acids, along with… Sodium Hydroxide is a highly caustic and reactive inorganic base. Is sodium hydroxide natural or synthetic? Publications related to Sodium Hydroxide AND Synthetic Chemistry (100) Optimization of process variables on two-step microwave-assisted transesterification of waste cooking oil Article Other articles where Sodium hydroxide is discussed: fat and oil processing: Alkali refining: …solution of caustic soda (sodium hydroxide) or soda ash (sodium carbonate). 3.3.6 Caustic Soda Processing. What Is It? DR.James G. Speight, in Environmental Inorganic Chemistry for Engineers, 2017. Cancer . Sodium is "natural" in that it is not synthetic, but elemental sodium does not exist naturally because it is so reactive. Cancer: Ingredients linked to cancer in government, industry or academic studies or assessments. The refining may be done in a tank (in which case it is called batch or tank refining) or in a continuous system. Sodium Hydroxide, Calcium Hydroxide, Magnesium Hydroxide and Potassium Hydroxide are white solids which occur in several forms, including powders. Caustic soda (NaOH, more formally known as sodium hydroxide and less formally known as lye) is a white solid and is available in pellets, flakes, granules, and as prepared solutions at different concentrations. Synthetic. Natural or synthetic? CAUSTIC SODA, CAUSTIC SODA; SODIUM HYDROXIDE; SODIUM HYDROXIDE, SODIUM HYDRATE, SODIUM HYDROXIDE, SODIUM HYDROXIDE (NA(OH)), and SODIUM HYDROXIDE SOLUTION.