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, etc.

Performance of detection

PerformanceMethod of detection
Calcium contentFlame atomic absorption spectrometry, EDTA titration, acid-base titration, etc
Sulfur contentFlame atomic absorption spectrometry, ultraviolet spectrophotometry, ICP-AES, etc
Content of moistureGravimetric method, drying method, potassium halate titration, etc
Specific surface areaSpecific surface area measuring instrument, BET method, etc
Structure of crystalX-ray diffraction analysis, infrared spectroscopy, etc
Content of impuritiesAtomic absorption spectrometry, chromatography, etc
Particle sizeLaser particle size analyzer, optical microscope method, time of flight method, etc

What is barite? What performance needs to be tested?

Method of detection
The following methods are used to test the common properties of barite:

PerformanceMethod of detection
Particle size distributionLiquid displacement method, laser particle size analysis, microscope observation method
Specific surface area

Specific surface area measurement instrument method, gas phase adsorption method, liquid phase adsorption method

ColorSpectrophotometry, colorimeter
Purity of substanceX-ray fluorescence spectroscopy, ICP-MS
Density of densityDensitometer method
Fluorescence performanceFluorescence spectroscopy, ultraviolet absorption spectroscopy

Among them, 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.

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