Properties and performance: Calcium propionate is white crystal or white crystalline powder or granule, odourless or microstrip propionic acid odor.Used as food additive calcium propionate as salt monohydrate, for water and thermal stability, has the water absorbability, soluble in water, l0 of 39.9 g/ml (20 ºc), insoluble in ethanol, ether.In 10% of the calcium propionate aqueous solution to add the same amount of dilute sulphuric acid, heating can release the special scent of propionic acid.Calcium propionate alkaline, 10% of its water solution ph value of 8 ~ 10.Anticorrosion performance of calcium propionate and sodium propionate, same form propionic acid in acid medium and bacteriostasis.The effective dose of calcium propionate inhibitory relatively sodium propionate is small, but it can reduce the effect of chemical leavening agent, substitutes sodium propionate, however, its advantage lies in the pastry, bread and cheese in the use of calcium in calcium propionate can supplement food lei.Calcium propionate can inhibit the dough fermentation bacillus subtilis breeding, ph value of 5.0 minimum bacteriostatic mass fraction is 0.01%, when the ph value of 5.8 to 0.188%, the optimum ph value should be lower than 5.5. Storage:store in a cool, dry place.Store in an airtight container. Dispose:thoroughly clean after operation.Wash your hands before eating.Use with adequate ventilation conditions.Reduce dust generation and accumulation.Avoid contact with skin and eyes.Avoid eating and breathing. Notes: (1) using a leavening agent unfavorable use calcium propionate, because can be reduced due to the formation of calcium carbonate's ability to produce carbon dioxide. (2) for calcium propionate acid type preservatives, within the scope of the acid works: ph5 to mold inhibitory effect best, below ph6 bacteriostatic ability decreased obviously.