What Manufacturers Really Mean By Natural And Artificial Flavors Like many shoppers, I find food labels confusing. In most circumstances, the implications of âartificialâ and naturalâ are pretty clear.
Hydroxylapatite, also called hydroxyapatite (HA), is a naturally occurring mineral form of calcium apatite with the formula Ca 5 (PO 4) 3 (OH), but is usually written Ca 10 (PO 4) 6 (OH) 2 to denote that the crystal unit cell comprises two entities. Hydroxylapatite is the hydroxyl endmember of the complex apatite group.
The names of the hydroxide (OH -), cyanide (CN -), and peroxide (O 2 2-) ions, for example, have the-ide ending because they were once thought to be monatomic ions. Practice Problem 5The bone and tooth enamel in your body contain ionic compounds such as calcium phosphate and hydroxyapatite.