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Method for detecting purity of lithium perchlorate

A lithium perchlorate and detection method technology, applied in the field of chemical analysis, can solve the problems of using too many reagents, poor test data stability, complicated detection process, etc., and achieve the effect of less reagents, convenient observation, and simple detection process

Pending Publication Date: 2020-12-04
百杰瑞(荆门)新材料有限公司
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Problems solved by technology

[0004] The invention provides a method for detecting the purity of lithium perchlorate, which solves or partially solves the technical problems of using many reagents, complicated detection process, and poor stability of test data in the prior art in the detection of the main content of lithium perchlorate

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  • Method for detecting purity of lithium perchlorate

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Embodiment Construction

[0014] see figure 1 , a kind of detection method of lithium perchlorate purity that the embodiment of the present invention provides, comprises the following steps:

[0015] Step 1, prepare lithium perchlorate solution.

[0016] Step 2, injecting a strongly acidic ion exchange column into the lithium perchlorate solution to obtain the first exchange solution.

[0017] Step 3, wash the strongly acidic ion exchange column with water until the dripping solution becomes neutral, then collect the second exchange liquid and washing liquid.

[0018] Step 4, adding the second exchange liquid and the washing liquid into the first exchange liquid to obtain a mixed liquid.

[0019] Step 5, add methyl red indicator solution to the mixed solution to make the mixed solution red.

[0020] Step 6, drop the sodium hydroxide standard solution into the mixed solution until the mixed solution turns from red to yellow, and obtain the consumption of the sodium hydroxide standard solution.

[00...

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Abstract

The invention discloses a method for detecting the purity of lithium perchlorate, and belongs to the technical field of chemical analysis. The method for detecting the purity of lithium perchlorate comprises the following steps: injecting a strongly acidic ion exchange column into a lithium perchlorate solution to obtain a first exchange solution; washing the strongly acidic ion exchange column with water until the dropping solution is neutral, and collecting a second exchange solution and a washing solution; adding the second exchange solution and the washing solution into the first exchangesolution to obtain a mixed solution; adding a methyl red indicating liquid into the mixed solution to enable the mixed solution to be red; and measuring the lithium content of the mixed solution on anatomic absorption spectrometer, and obtaining the lithium perchlorate content according to the consumption of the sodium hydroxide standard solution and the molar concentration of the sodium hydroxide standard solution. The method for detecting the purity of the lithium perchlorate has the advantages of few reagents, cost saving, simple and convenient detection process and high stability of detection data.

Description

technical field [0001] The invention relates to the technical field of chemical analysis, in particular to a method for detecting the purity of lithium perchlorate. Background technique [0002] Along with the new energy industry and the aerospace field, low-moisture lithium perchlorate is used as an oxidant in the aerospace field, used in the manufacture of rocket jet fuel, and is also an important raw material used in new energy lithium batteries, used as lithium battery electrolyte group points, used as a catalyst, etc. [0003] In the prior art, the detection of the main content of lithium perchlorate has the problems of using too many reagents, the detection process is complicated, and the stability of the test data is poor. Contents of the invention [0004] The invention provides a method for detecting the purity of lithium perchlorate, which solves or partially solves the technical problems in the prior art that the detection of the main content of lithium perchlo...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/31G01N31/16
CPCG01N21/31G01N31/16
Inventor 陈欣易逵锋王冲
Owner 百杰瑞(荆门)新材料有限公司
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