Dicalcium phosphate granules

Types of dicalcium phosphate

Dicalcium phosphate exists in both dry and aqueous forms. The aqueous type of dicalcium phosphate is both in the form of a hydrate with the formula CaHPO4.2H2O, which has two molecules of intramolecular water, and in the form of a dihydrate with the molecular formula CaHPO4 with the abbreviation DCPD.

Uses of dicalcium phosphate

Calcium hydrogen phosphate is a food supplement in breakfast cereals, dog food, enriched flour and string products. This salt is also used in medicinal and health products. Phosphoric acid calcium salt is also found in some calcium supplements. In the following, we will examine the uses of dicalcium phosphate.

Oral dicalcium phosphate

Normally, this substance is used in all kinds of foods and drinks with the properties of buffering, dough modifier, emulsifier, leavening agent, food supplement and stabilizer. Both calcium and phosphate are very necessary for the proper functioning of the body and play an important role, including in DNA synthesis and building bones, hence they are used as an additive in various supplements to meet the essential needs of the body. Dicalcium phosphate keeps food fresh and long-lasting and is an active agent in yeast, bread and bakery products and improves the taste and aroma of products.

Dicalcium phosphate in animal and poultry feed

Calcium phosphates are among the most widely used phosphate supplements that provide minerals necessary for the growth of teeth and bones of livestock, poultry and pets. which are orally available including dicalcium phosphate, monocalcium phosphate and tricalcium phosphate. Livestock dicalcium phosphate in the diet of livestock and poultry (horses, chickens) strengthens the immune system and bones, increases the quality and quantity of milk and meat production, increases the fertility of livestock, increases appetite, and strengthens the digestive system. , nervous and muscular in livestock. In poultry feed, the use of this product strengthens bones, increases appetite, increases production in meat and egg-laying poultry, improves the quality of egg shells, and increases the number of chickens.

Dicalcium phosphate production method

Dicalcium phosphate is obtained from the chemical reaction of phosphoric acid and calcium carbonate. This salt is produced in the following way.

The formula of this chemical reaction is as follows:

H3PO4+CaCO3…………….CaHPO4,H2O+CO2
The raw materials used for hydrated dicalcium phosphate are:
food grade phosphoric acid, the amount of fluorine, sulfur and heavy metals, arsenic, lead, mercury and cadmium should be in be the limit The amount of heavy metals in calcium carbonate should also be within the standard range. The output product enters the dryer, where the moisture content of the product should reach the permissible limit in a certain time in the vicinity of hot air. Because if the temperature of the dryer exceeds the allowed limit, it will cause the product to become ceramic and will have a low biological value, and because the product must have two water molecules, therefore, temperature regulation is very important. The size of dicalcium phosphate grains or granules should be the same to increase its absorption and biological value. For this reason, proper granulation of the product is more cost-effective than powder