Cream of tartar is a tartaric acid salt. The production of cream of tartar dates back to ancient times, since man began producing wine from grapes, and Paracelsus, the father of modern medicine, claimed that it had great therapeutic virtues and was a sort of panacea. Naturally present in grapes, it is deposited when the wine is left to rest in tanks, especially in the winter months. Randi Group has always produced cream of tartar and it guarantees a purified product with no chemical additives that are toxic or harmful to health. The result of this process is a natural product ideal for the food, wine and cosmetics sectors. For this reason, Randi Group’s cream of tartar is in great demand by companies which prefer to use natural products that both respect tradition and safeguard health.
E336 (i) NATURAL CREAM OF TARTAR CAS No. 868-14-4 EINECS No. 212-769-1
SYNONYMS
Monopotassium Tartrate - Monobasic Potassium Tartrate - Potassium Hydrogen Tartrate - Potassium Bitartrate - Potassium Acid Tartrate
CHEMICAL NAME
Anhydrous monopotassium salt of L-(+)-tartaric acid; Monopotassium salt of L-2,3-dihydroxybutanedioic acid, Potassium hydrogen (2R,3R)-2,3-dihydroxybutane-1,4-dioate
CHEMICAL FORMULA C4H5O6K
MOLECULAR WEIGHT 188.16
DESCRIPTION White crystalline powder. Slightly soluble in water, practically insoluble in alcohol. It dissolves in dilute solutions of mineral acids and alkaline hydroxides.
DEFINITION Potassium hydrogen (2R,3R) -2,3-dihydroxybutane-1,4-dioate. Content: 99.5 percent - 100.5 percent (dry substance)
IDENTIFICATION
It responds to the test for the specific rotation power. Suspend 0.5 g in 50 ml of R water and boil until completely dissolved. Allow to cool (solution A). Add 0.1 ml of methyl red solution R to 5 ml of solution A. The solution is red. Solution A tests positive for tartrates. Solution A tests positive for potassium.
ALTERAZIONI DI STATO None
SPECIFIC WEIGHT(25°C) 1.25 g/ml
SOLUBILITY IN WATER (20°C) 6.17 g/l
SOLUBILITY IN WATER (100°C) 62.5 g/l
SOLUBILITY IN WATER IN ALCOOL (95°C) Insoluble
3.4
FUSION POINT 230 °C
