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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.
Acetic Acid is an organic acid formed when ethanol is fermented. Vinegar is typically a 5% solution of Acetic Acid. Brown Rice Vinegar is the vinegar produced by the fermentation of unpolished brown rice. Natural Vinegars also contain small amounts of tartaric acid, citric acid and other acids.In cosmetics and personal care products, Acetic Acid, Vinegar and Brown Rice Vinegar are used in the formulation of hair conditioners, shampoos, hair rinses, wave sets and other hair care products.rown Rice Vinegar is the vinegar produced by the fermentation of unpolished brown rice. All three can be used in the pickling of vegetables and other foodstuffs. When not diluted with water, Acetic Acid is called glacial acetic acid. Glacial acetic acid is corrosive.