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- [2023-06-27]
Application of toothpaste grade sodium fluoride in toothpaste
Sodium fluoride and fluoride salt toothpaste are good for teeth and can effectively prevent dental caries and reduce the formation of plaque. The fluoride contained in it can enhance the ability of teeth to resist tooth decay and prevent the occurrence of tooth decay. Fluorine toothpaste has a certain anti caries effect, which can reduce the caries rate by up to 28%. Generally, the content of sodi
- [2023-06-09]
Do ice makers need refrigerant for cooling? Decryption refrigeration technology
1、 The refrigeration principle of ice maker The refrigeration principle of an ice maker is to convert liquid into solid through compression refrigeration. It is usually achieved through a compression refrigeration cycle, which includes four parts: compressor, condenser, expansion valve, and evaporator. Among them, the compressor compresses the refrigerant into high-temperature and high-pressure
- [2023-02-04]
What are the uses of fluoropolymers
Due to the low surface tension of fluoropolymers, films made from them (such as ETFE) have self-cleaning function, which can wash away dust with only rainwater flushing.
- [2023-06-09]
What are the common second-generation refrigerants
1、 R-22 refrigerant R-22 is an HCFCs refrigerant that was widely used as an early substitute for fluorocarbons. This refrigerant has good cooling effect and is widely used in small and medium-sized commercial and industrial air conditioning as well as refrigeration equipment. However, R-22 refrigerant has a significant destructive effect on the ozone layer and has been listed as a banned
- [2023-04-26]
Principle and Application of Fluorozirconic Acid Surface Treatment Technology
Principle, Technical Content, and Application of Fluorozirconic Acid Surface Treatment Technology 1. Principle of Fluorozirconic Acid Surface Treatment Technology Zirconization technology uses fluorozirconic acid as the main agent, and utilizes the hydrolysis reaction of fluorozirconic acid to form a chemically stable amorphous oxide conversion film on the surface of the metal substrate; T
- [2023-02-04]
There are several methods for fluorinating organic compounds
There are several methods for fluorination of organic compounds, including selective fluorination. Fluorides of alkali metals or fluorides of antimony, mercury, and silver can be used to convert halogenated alkanes or sulfonic acid esters into fluorinated alkanes. The reaction is generally carried out in an anhydrous polar medium; Antimony pentachloride can also be used as a catalyst for fluorinat
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