Accident factors-poor management, inadequate preservation of reagents or disposal of waste reagents

Hazardous chemical reagents or intermediates must be strictly managed and stored, transported and used properly according to their basic characteristics, otherwise accidents are prone to occur

Case 1

A certain research team wants to relocate to another laboratory building as a whole, and everyone hastily packed the instruments and reagents for shipment

The same LiBH ₄ explosion and fire accident: In the reagent cabinet under the fume hood, the reagents were placed chaotically.

Figure 25-26 is a video screenshot of fire and smoke during a violent explosion

Case 2

Poor storage of boron tribromide in the fume hood can easily cause an explosion accident.

Figure 25-27 Explosion accident of boron tribromide

Boron tribromide is a colorless liquid with a boiling point of 91°C.

Case 3

Hydrochloric acid organic reagents such as hydrochloric acid methanol solution should be prepared for immediate use and cannot be stored for a long time

Figure 25-28 The scene after the explosion

Case 4

Acid and alkali can not be put together for transfer

Figure 25-29 The air in the laboratory is polluted

Case 5

Palladium on carbon, palladium hydroxide , Raney Ni and other catalysts should be collected after use

Figure 25-30 The spent catalyst catches fire and burns