What is barite? What performance needs to be tested?
Barite is a mineral containing calcium, sulfur and oxygen with the chemical formula CaSO4. It usually exists in the form of colorless or white crystals and is one of the sulfate minerals. Barite is used in a wide range of industries, including in the manufacture of plasterboard, plaster moulds, sulfate fertilizers, cement additives, and more.
Detection performance
| performance | Detection method |
|---|---|
| calcium content | Flame atomic absorption spectrometry, EDTA titration, acid-base titration, etc. |
| Sulfur content | Flame atomic absorption spectrometry, UV spectrophotometry, ICP-AES, etc. |
| moisture content | Gravimetric method, drying method, potassium halide titration method, etc. |
| specific surface area | Specific surface area measuring instrument, BET method, etc. |
| Crystal structure | X-ray diffraction analysis, infrared spectroscopy, etc. |
| Impurity content | Atomic absorption spectrometry, chromatography, etc. |
| the size of granule | Laser particle size analyzer, optical microscope method, time-of-flight method, etc. |
Detection method
The following are the detection methods for the common properties of barite:
| performance | Detection method |
|---|---|
| Particle size distribution | Liquid displacement method, laser particle size analysis method, microscope observation method |
| specific surface area | Specific surface area measuring instrument method, gas phase adsorption method, liquid phase adsorption method |
| color | Spectrophotometry, color difference meter |
| purity | X-ray fluorescence spectrometry, ICP-MS method |
| density | Densitometer method |
| Fluorescent properties | Fluorescence spectroscopy, UV absorption spectroscopy |
Among them, particle size distribution and specific surface area are usually measured by liquid displacement method and specific surface area measuring instrument method; color can be detected by Spectrophotometer and color difference meter; purity is often measured by X-ray fluorescence spectrometry and ICP-MS method; density can be detected by densitometer method; fluorescence properties can be measured by fluorescence spectrometry and ultraviolet absorption spectrometry.
