Dicalcium phosphate dihydrate (DCPD)
is a white, odorless, and tasteless crystalline powder with the chemical formula CaHPO₄·2H₂O. The compound is also known by its mineral name, brushite. While it is practically insoluble in water, it readily dissolves in dilute acids.
Common uses
DCPD is a versatile compound widely used in the food, pharmaceutical, and agricultural industries. Its primary functions include providing bioavailable sources of calcium and phosphorus and acting as an excipient in tablets and powders.
Food industry
- Leavening agent: As a heat-triggered leavening acid, it is used in baking products like cakes and muffins. It releases carbon dioxide (CO2c) during the later stages of baking, improving the final texture.
- Nutrient supplement: It is added to cereals, enriched flour, and baked goods to increase their nutritional value with calcium and phosphorus.
- Anti-caking agent: In powdered foods and spices, it helps prevent clumping.
- Dough conditioner: In baking, it improves the texture and rise of dough.
Pharmaceuticals and personal care
- Tablet excipient: It serves as a filler and binder in pharmaceutical tablets and nutritional supplements due to its compressibility and flow properties.
- Abrasive agent: Its mild abrasive properties are utilized in toothpastes and other dental products to help remove plaque and stains.
- Nutritional supplement: As a common ingredient in multivitamins and supplements, it provides essential calcium and phosphorus for bone and teeth health.
Agriculture
- Animal feed: DCPD is a common mineral supplement in livestock feed, especially for cattle and poultry, to support bone development and growth.
- Fertilizer: It provides readily available calcium and phosphorus to plants when used as an ingredient in fertilizers.
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