Glass instruments made of excellent performance of glass are widely used in various laboratories, such as chemical laboratories, medical laboratories, biological laboratories, scientific research laboratories and teaching laboratories. The chemical stability of glass is good, but it is not absolutely free from erosion, but its erosion degree meets certain standards.
Precautions for filtering:
1. The mixture in the beaker should be stirred with a glass rod before filtration, and then filtered.
2. If the solution is still turbid after filtration, it should be filtered again until the solution becomes transparent.
3. Washing method of sediment in the filter: add distilled water to the filter with a flask or dropper to cover the water surface without sediment, and repeat it for 2~3 times after the solution is completely filtered out.
Industrial filter materials:
Gehuajing: It is produced with imported polymer raw materials, and it is the latest environmental protection product at present. It is widely used for disinfection and filtration in factories and mines, and is used in aquaculture, sugar making, paper making, tap water purification, oil drilling, chemical refining, large oil depots, new chemical textiles and other units. Produced with imported equipment, it has the advantages of acid resistance, alkali resistance, high temperature resistance, corrosion resistance and wear resistance.