Where there is a better Potassium citrate

Where there is a better Potassium citrate? For this possibility many people don't know, here is the introduction to it:

Potassium citrate, potassium citrate, potassium citrate. Potassium citrate is a kind of citrate, C6H5K3O7, the molecular weight 306.39500, which is a kind of white, with a kind of wet crystallized powder. Odorless, the taste of saline, soluble in water, dissolve in glycerin, insoluble in alcohol, salty and cold. As a preservative, stabilizer and pH buffer etc. Our country rules can be used in all kinds of food, according to production need appropriate amount to use. Medically, it can be used to control the use of uric acid or cysteine, which is used to prevent hypokalemia and alkalize urine