Method for detecting chlorine content in zirconium oxide

A detection method and technology for chlorine content, applied in the field of zirconia, to achieve the effects of accurate numerical value, easy operation and low detection cost

Inactive Publication Date: 2015-06-03
DONGGUAN XINBO STRUCTURAL CERAMICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So far, no such detection method has been reported

Method used

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  • Method for detecting chlorine content in zirconium oxide
  • Method for detecting chlorine content in zirconium oxide
  • Method for detecting chlorine content in zirconium oxide

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Embodiment

[0023] The method for detecting chlorine content in zirconia according to the present invention adopts a sample to form a curdled silver chloride suspension with silver nitrate in a slightly acidic solution, and carries out turbidity detection, and is suitable for zirconia calcined blocks, Zirconia granulated powder, zirconia airflow powder and other powder materials.

[0024] 1. Reagents:

[0025] Nitric acid solution (C(HNO3)=1mol / L: Measure 62.5ml of nitric acid (specific gravity is 1.42g / cm 3 ) in a 1L volumetric flask, add water to the mark and shake well.

[0026] Silver nitrate solution (0.1%): Dissolve 0.1g of silver nitrate in a 100ml volumetric flask, add water to the mark and shake well.

[0027] 2. Chlorine standard solution (0.1mg / ml):

[0028] Accurately weigh 0.1649g of standard sodium chloride that has been dried at 270~300°C in a beaker, dissolve it in water, transfer it to a 1L volumetric flask, dilute to the marked line, mix well, and store in a plastic b...

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Abstract

The invention relates to the technical field of zirconium oxide, and in particular relates to a method for detecting chlorine content in zirconium oxide. The method comprises the following steps: enabling a test sample to react with silver nitrate in a slightly acidic solution to form curdy silver chloride suspension liquid, and performing turbidimetry. By adopting the method disclosed by the invention, the content of chlorine in zirconium oxide powder can be accurately detected, the influences of chlorine impurities to zirconium oxide ceramic products can be reduced, and the quality of the zirconium oxide ceramic products can be ensured.

Description

technical field [0001] The invention relates to the technical field of zirconia, in particular to a method for detecting chlorine content in zirconia. Background technique [0002] Zirconium dioxide (chemical formula: ZrO2) is the main oxide of zirconium, usually in the form of white odorless and tasteless crystals, insoluble in water, hydrochloric acid and dilute sulfuric acid. Usually contain a small amount of hafnium dioxide. The chemical properties are inactive, and the properties of high melting point, high resistivity, high refractive index and low thermal expansion coefficient make it an important high temperature resistant material, ceramic insulating material and ceramic sunscreen, and is also the main raw material for artificial drills. [0003] Zirconia ceramics are ceramic products made of zirconia powder. At present, zirconia ceramics have been widely used. Zirconia ceramics are mainly formed by pressing and sintering zirconia powder, so the impurity content i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/31
Inventor 陈兰桂孙亮李伟王文利
Owner DONGGUAN XINBO STRUCTURAL CERAMICS CO LTD
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