מה זה בריט? איזה ביצועים צריך לבדוק?
בריט הוא מינרל המכיל סידן, גופרית וחמצן עם הנוסחה הכימית 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, וכו.
ביצועים של זיהוי
| Performance | שיטת זיהוי |
|---|---|
| Calcium content | ספקטרומטריית בליעת אטום להבה, EDTA titration, acid-base titration, וכו |
| Sulfur content | ספקטרומטריית בליעת אטום להבה, ultraviolet spectrophotometry, ICP-AES, וכו |
| Content of moisture | Gravimetric method, שיטת ייבוש, potassium halate titration, וכו |
| Specific surface area | Specific surface area measuring instrument, BET method, וכו |
| Structure of crystal | X-ray diffraction analysis, infrared spectroscopy, וכו |
| Content of impurities | Atomic absorption spectrometry, chromatography, וכו |
| Particle size | Laser particle size analyzer, optical microscope method, time of flight method, וכו |
מה זה בריט? איזה ביצועים צריך לבדוק?
שיטת זיהוי
The following methods are used to test the common properties of barite:
| Performance | שיטת זיהוי |
|---|---|
| Particle size distribution | Liquid 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 |
| צֶבַע | Spectrophotometry, קולורימטר |
| Purity of substance | X-ray fluorescence spectroscopy, ICP-MS |
| Density of density | שיטת דנסיטומטר |
| Fluorescence performance | Fluorescence spectroscopy, ultraviolet absorption spectroscopy |
ביניהם, 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.