什么是重晶石? 需要测试什么性能?
重晶石是一种含钙矿物, 硫和氧，化学式为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.
检测性能
| 表现 | 检测方法 |
|---|---|
| Calcium content | 火焰原子吸收光谱法, EDTA titration, acid-base titration, ETC |
| Sulfur content | 火焰原子吸收光谱法, ultraviolet spectrophotometry, ICP-AES, ETC |
| Content of moisture | 重量法, 干燥法, potassium halate titration, ETC |
| 比表面积 | 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 |
| Particle size | 激光粒度仪, optical microscope method, time of flight method, ETC |
什么是重晶石? 需要测试什么性能?
检测方法
The following methods are used to test the common properties of barite:
| 表现 | 检测方法 |
|---|---|
| 粒度分布 | Liquid displacement method, laser particle size analysis, microscope observation method |
| 比表面积 | Specific surface area measurement instrument method, gas phase adsorption method, liquid phase adsorption method |
| 颜色 | 分光光度法, 色度计 |
| 物质纯度 | X射线荧光光谱, ICP-MS |
| 密度密度 | Densitometer method |
| Fluorescence performance | Fluorescence spectroscopy, ultraviolet absorption spectroscopy |
他们之中, 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.