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 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, итд.
Перформансе детекције
| Перформансе | Метода детекције |
|---|---|
| Calcium content | Flame atomic absorption spectrometry, EDTA titration, acid-base titration, итд |
| Sulfur content | Flame atomic absorption spectrometry, ultraviolet spectrophotometry, ICP-AES, итд |
| Content of moisture | Gravimetric method, начин сушења, potassium halate titration, итд |
| Специфична површина | Specific surface area measuring instrument, BET method, итд |
| Structure of crystal | X-ray diffraction analysis, infrared spectroscopy, итд |
| Content of impurities | Atomic absorption spectrometry, хроматографија, итд |
| Particle size | Laser particle size analyzer, optical microscope method, time of flight method, итд |
What is barite? What performance needs to be tested?
Метода детекције
The following methods are used to test the common properties of barite:
| Перформансе | Метода детекције |
|---|---|
| Расподела величине честица | Liquid displacement method, laser particle size analysis, microscope observation method |
| Специфична површина | Specific surface area measurement instrument method, gas phase adsorption method, liquid phase adsorption method |
| Color | Spectrophotometry, колориметар |
| Purity of substance | X-ray fluorescence spectroscopy, ICP-MS |
| Густина густине | Densitometer method |
| Fluorescence performance | Fluorescence spectroscopy, ultraviolet absorption spectroscopy |
Међу њима, 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.