What is the main ingredient of toothpaste? White substance What is this?

Question:
What is the main ingredient of toothpaste? the white substance is what?

Answer:
embarrassed, a little more, but the sincere hope that it can help you … …

toothpaste Toothpaste is a major component
powder friction agents, wetting agents, surfactants, adhesives, spices, sweeteners, and other special ingredients composition.
1, friction agent
friction agents commonly used in toothpaste are:
① calcium carbonate (CaCO3): calcium carbonate are two kinds of heavy and light, heavy calcium carbonate is limestone and calcite rock crushing, grinding, refining. Precipitated calcium carbonate is the calcium salts dissolved in hydrochloric acid, and then pass into the carbon dioxide, to be calcium carbonate precipitation. Precipitated calcium carbonate fine particles, the proportion of light, can be used for toothpaste.
② dicalcium phosphate (DCP 2 and DCP CaHPO4 ? 2H2O water and salt-free water and salt CaHPO4): dicalcium phosphate is divided into two molecules of water two two kinds of water and salt and no water and salt. 2 water and salt and other ingredients are well mixed, but the absence of water and salt, high hardness, strong friction, and therefore a special addition to smoke traces of toothpaste, you can mix the two of water and salt in 5% ~ 10% non-water and salt.
③ calcium pyrophosphate (Ca2P2O7): dicalcium phosphate calcium pyrophosphate is obtained by heat treatment. Because it does not, and fluorine-containing compounds react with fluoride toothpaste and therefore can be used as the base material.
④ hydrated silicate (SiO2 ? nH2O): Hydrated silica is a very fine white particles that can be used in a transparent toothpaste. In addition, because of its large specific volume can be used as toothpaste incremental use of agents and tackifier.
⑤ aluminum hydroxide [A1 (OH) 3]: coarse particles of aluminum hydroxide, but will not damage the enamel, and can increase the brightness of toothpaste, and has excellent tooth cleaning power.
2, wetting agents
wetting agent to prevent toothpaste in the tube in the curing hardens and make paste with a gloss level of performance. The wetting agent used in toothpaste are glycerin, propylene glycol, sorbitol and so on.
3, surface-active agent
for cleaning the mouth of the dirt, now widely used is neutral detergent - sodium lauryl alcohol. Be able to quickly foam, both hair foam, but also clean the mouth of the dirt. Toothpaste surfactants used in very high purity can not have odor, the general dosage is 2%.
4, adhesive
to make toothpaste ingredients dispersed evenly, you can use adhesives, such as the cMc (carboxymethyl cellulose sodium) and its derivatives, Chondrus ocellatus, sodium alginate and other substances.
5, spices
mainly mint toothpaste with the spices, it is cool to give a sense of toothpaste, an indispensable element. Class is divided into menthol mint (menthol), peppermint oil, menthol and other substances, as well as its derived spices. In addition, can also use fruit flavor, such as citrus and other spices, but as a toothpaste, perfume is a strictly limited.
6, sweeteners
to improve the taste of toothpaste, toothpaste, added a small amount of saccharin. Used as a wetting agent as glycerol, also has a sweet taste, so with saccharin consumption is generally o. 01% ~ o. 1%. Sweetener xylitol can also be used to do.
7, other special ingredients
in order to prevent and treat oral disease, and some toothpastes also adding some special ingredients: ① To remove bad breath toothpaste often adding pairs of oxo-phenyl-2-guanidino-hexane, and Bo alcohol fungicides, Copper chlorophyllin have a definite effect in preventing bad breath. ② control dental caries can be added to fluoride compounds, can inhibit fermentation residues in the mouth, but also to strengthen the tooth enamel surface. From security to consider the provision of fluoride toothpaste in the following 1ooo mg. Natural water with fluoride in the chin of the population, the incidence of dental caries is relatively low, but high level of fluoride drinking water, tooth-like surface, will form whitish (mottled teeth), but to make a qualitative change in brittle teeth.
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the white substance is a mixture of these things.