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How to measure the purity of single boron

wallpapers Industry 2020-05-29
Monomer boron is dark brown or black powder, crystalline boron is relatively inert, and amorphous boron is active. Monomer boron is relatively high in hardness and has a very high resistance. It is commonly used in the manufacture of the electronics industry. Not only that, but it also has a wide range of applications in other sectors. The purity of the monomer boron used in various forms is also different, so how to measure the purity of the monomer boron? Here are some commonly used methods.

Indicator method:

The indicator method is to take a sample of an individual gram of monomer boron, take an indicator of standard detection purity, add it according to a specific ratio, and get the value after a period of reaction.

Determine the pH method:

Take a certain amount of dry monomer boron, add water to the beaker and moisten it, add a certain proportion of concentrated nitric acid, and wait for the reaction until there is no yellow smoke. If a certain percentage of water, use hydrochloric acid and sodium hydroxide to adjust the pH value on the adjusted acidity meter, then add a certain amount of Glycerol to the test solution, set the pH value with sodium hydroxide standard drops, and then add Glycerol, if the pH value is less than the titrated amount, then repeat until the test solution is equal to the pH value.

The determination of the purity of the monomer boron by the pH method is rarely used in China. It is more accurate, fast, accurate, and applicable than the widely used indicator method. However, this method has complicated steps and requires careful attention to avoid errors. The H method is the same as the indicator method. It is only suitable for the determination of monomer boron with a purity of 95%. The decision of monomer boron with a purity of 95% or more is still to be discussed, but each manufacturer has its measurement method.

Trunnano is one of the world's largest manufacturers of amorphous boron powder. If you are interested in products related to boron powder, please contact Leo Manager, email: brad@ihpa.net.

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