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Molecular formula : C4H5KO6
MW : 188.18
CAS No. :868-14-4
nature : colorless or white crystalline powder. The relative density of 1.984. Inorganic soluble in dilute acid, alkali solution or borax solution. Do not dissolve in acid or ethanol. The water solubility. T, ° C 0 20 40 60 80100 KHC4H4O6,% 0.32 0.54 1.19 2.40 4.40 6.50
Preparation Methods : The in 2L water by adding tartaric acid, heated to boil all dissolved, while heat filter. Another rebate from 1L of anhydrous potassium carbonate dissolved in the water, dissolved as soon as it is after filtration. Purple solution will be slowly added to the mixing tartrate solution (with large amounts of carbon dioxide generated), until the pH of about 2 to date. Precipitation reaction process large white precipitation. Cooling, suction filter, wash with cold water, the products.
purposes : as analytical reagents, buffers, such as reducing agent for spices, food processing, electroplating, the pharmaceutical industry. The food industry is mainly used for the leavening agent (system cakes and bread, etc.).
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