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Electrolyte for anodic dissolution Coulomb test and preparation method thereof

An anode dissolution and electrolyte technology, applied in the electrolyte field, can solve problems such as safety accidents and electrolyte configuration failure, achieve the effects of mild reaction, improve measurement efficiency and measurement accuracy, and reduce safety hazards

Inactive Publication Date: 2019-06-07
HUIZHOU KEEN POINT PRECISION PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, it is very easy to cause the failure of the electrolyte configuration and cause a safety accident.

Method used

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  • Electrolyte for anodic dissolution Coulomb test and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Weigh sodium nitrate NaNO 3 600g, potassium sodium tartrate KNaC 4 h 4 o 6 4H 2 O 20g is dissolved in pure water, heated and stirred until completely dissolved, cooled to room temperature, then fixed to 1L with pure water and stirred until the solution is mixed evenly to obtain an anode dissolved electrolyte, which is used for Coulomb test, Monitor the conductivity and voltage data of the electrolyte during the test, and obtain the conductivity and voltage values ​​during the dissolution process of the electrolyte after the anode is fully dissolved. Use the electrolyte solution to carry out Coulomb test continuously for 2 months under the same conditions, and take the average value of conductivity, the variation range of the recorded voltage value, and the number of interruptions of the recorded dissolution process as the performance data of the electrolyte solution. The data are listed in Table 1 for comparison.

Embodiment 2

[0020] Weigh sodium nitrate NaNO 3 620g, potassium sodium tartrate KNaC 4 h 4 o 6 4H 2 O 22g, prepare electrolyte, carry out repeated test by the experimental method of embodiment 1. The data are listed in Table 1 for comparison.

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Abstract

The invention discloses an electrolyte for anodic dissolution Coulomb test. By using sodium nitrate and sodium potassium tartrate as configuration raw materials, the dissolution interruption phenomenon during use of the electrolyte can be reduced, and test efficiency and accuracy of Coulomb test are improved; and meanwhile, by utilizing the characteristic of stable chemical property of the raw materials, configuration success rate of the electrolyte is improved, and safety hidden trouble in the configuration process is reduced.

Description

technical field [0001] The invention relates to the technical field of electrolytes, in particular to an electrolyte used for coulometric testing of copper anode dissolution. Background technique [0002] In the national standard "Metal coating coating layer thickness measurement anodic dissolution coulometric method" (GB / T 4955-2005 / ISO2177:2003), in order to measure the thickness of the metal coating layer, it is necessary to configure the corresponding electrolyte, and use the appropriate electrolyte anode Dissolve the covering layer with a precisely defined area, measure the complete dissolution of the covering layer by the change of the voltage of the electrolytic cell, and calculate the thickness of the covering layer by the electricity consumed by electrolysis (in coulombs). [0003] In appendix A of this standard, three electrolyte formulations for dissolving copper anodes are provided, namely: ammonium nitrate (NH 4 NO 3 ) and ammonia (NH 3 ·H 2 O) Electrolyte A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/42
Inventor 马晓明
Owner HUIZHOU KEEN POINT PRECISION PLASTIC