4. Packaging

Vacuum bags or vacuum bottles can also be packaged according to customer requirements.

5. Quality inspection

According to the corresponding testing report.

6. Purpose

Bismuth trisulfide has the advantages of environmental friendliness, photoconductivity and nonlinear optical response, and is widely used in solar cells, photodiode arrays, Infrared spectroscopy, etc. It can also be used in the preparation of other bismuth compounds, free cutting steel additives, and microelectronics industry.