O que é barita? Qual desempenho precisa ser testado?
A barita é um mineral que contém cálcio, enxofre e oxigênio com a fórmula química CaSO4. It usually exists in a colorless or white crystalline form and is one of the sulfate minerals. Barite has a wide range of industrial applications, including its use in the manufacture of plasterboard, plaster molds, sulfate fertilizers, cement additives, etc..
Desempenho de detecção
| Desempenho | Método de detecção |
|---|---|
| Calcium content | Espectrometria de absorção atômica de chama, EDTA titration, acid-base titration, etc. |
| Sulfur content | Espectrometria de absorção atômica de chama, ultraviolet spectrophotometry, ICP-AES, etc. |
| Content of moisture | Gravimetric method, método de secagem, potassium halate titration, etc. |
| Área específica da superfície | Specific surface area measuring instrument, BET method, etc. |
| Structure of crystal | X-ray diffraction analysis, infrared spectroscopy, etc. |
| Content of impurities | Atomic absorption spectrometry, chromatography, etc. |
| Tamanho da partícula | Analisador de tamanho de partículas a laser, optical microscope method, time of flight method, etc. |
O que é barita? Qual desempenho precisa ser testado?
Método de detecção
The following methods are used to test the common properties of barite:
| Desempenho | Método de detecção |
|---|---|
| Distribuição de tamanho de partícula | Liquid displacement method, laser particle size analysis, microscope observation method |
| Área específica da superfície | Specific surface area measurement instrument method, gas phase adsorption method, liquid phase adsorption method |
| Cor | Espectrofotometria, colorímetro |
| Purity of substance | X-ray fluorescence spectroscopy, ICP-MS |
| Densidade de densidade | Densitometer method |
| Fluorescence performance | Fluorescence spectroscopy, ultraviolet absorption spectroscopy |
Entre eles, the particle size distribution and specific surface area are usually determined by liquid displacement method and specific surface area meter method. Color can be detected by spectrophotometry and colorimeter; The purity is often determined by X-ray fluorescence spectrometry and ICP-MS. Density can be detected by densitometer method; The fluorescence performance can be measured by fluorescence spectroscopy and ultraviolet absorption spectroscopy.