The toothpaste should not have been stored for a long time

The toothpaste should not have been stored for a long time
Summary: Shelf life when the toothpaste is normal is one year. Exceed this time limit, or it is improper to store, the toothpaste will go bad. The toothpaste in the lead quality outer cover will also have more lotion of entry of lead ion long to pass to store time, it is long the chronic lead poisoning may take place with this kind of toothpaste.
Someone likes once to buy a lot of toothpaste, use slowly; Also some people seek cheaply, often buy and store the long toothpaste. Hardly realize, the way of doing things is all not scientific.
The toothpaste is generally made up of four kinds of compositions: First, foam pharmaceuticals, namely 12 alcohol sulfic acid sodium; Second, grit pharmaceuticals, mainly calcium carbonic acid, hydrogen calcium carbonic acid, hydrogen oxidizes aluminium, phosphoric acid hydrogen calcium etc.; Third, binder water soluble carboxyl methylcellulose, generally carboxyl methylcellulose is received; Fourth, compose shape, keeping warm, antifreeze, mainly include the glycerine, spices (natural or synthetic perfume) , edulcorant( It is generally saccharin) With some antiseptic antibacterial medicines,etc.. Material these can take place chemical reaction through certain time, cause and go bad, reduce decontamination of the toothpaste and function of keeping a public place clean. After some medicine toothpaste goes bad, the person with sensitive physique will also produce the allergic response to use.
Shelf life when the toothpaste is normal is one year. Exceed this time limit, or it is improper to store, the toothpaste will go bad. The toothpaste in the lead quality outer cover will also have more lotion of entry of lead ion long to pass to store time, it is long the chronic lead poisoning may take place with this kind of toothpaste.
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