What Is Tricalcium Phosphate?
Tricalcium phosphates are mineral compounds formed when calcium carbonate (CaCO3) reacts with water or other solvents. They are commonly found in concrete, cement, asphalt, and many other types of construction materials. Tricalcium phosphates have been used since ancient times for their strength and resistance to corrosion. Their use has increased over time due to their ability to resist chemical attack during manufacturing and transportation.
The most common form of tricalcium phosphate is CaCO3, which is a naturally occurring compound. Other forms include CaSO4 and CaMg2+ (which are produced through different processes). These minerals are not usually considered “natural” because they were mined out of the ground. However, it does appear that these minerals may have originated from meteorites.
There is no evidence to suggest that any of them came from extraterrestrial sources.
How Does Tricalcium Phosphate Work?
Tricalcium phosphates are often used in the manufacture of products such as: concrete, cement, asphalt, gypsum wallboard, and many others. Some of these products contain tricalcium phosphate to prevent cracking. Cracking occurs when a material becomes too soft or brittle after being hardened. When the product is exposed to air or moisture it will crack into pieces. To prevent this, manufacturers will add a small amount of tricalcium phosphate into the mixture. The tiny amount of tricalcium phosphate absorbs moisture, preventing the material from becoming too soft or brittle when it is hardened.
Some other manufactured items use tricalcium phosphate to increase their durability. For example, certain types of screws can become brittle and prone to breaking if they are not stored in a cool, dry place. Using a small amount of tricalcium phosphate prevents this problem.
Sources & references used in this article:
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Osteoclastic resorption of calcium phosphate ceramics with different hydroxyapatite/β-tricalcium phosphate ratios by S Yamada, D Heymann, JM Bouler, G Daculsi – Biomaterials, 1997 – Elsevier