Preparation of White phosphorus

Bend borosilicate tube, then add 1 g of pure fine sand and 4 g of red phosphorus, then put the open side of the tube to 50°C water. Then gently start to heat the red phosphorus mixture with a bunsen burner. Distillation time is about 20 minutes. The crude white phosphorus can be purified with a chromic acid solution.

Source

qwpbatchisolation

Distillation

Capture

Crude white phosphorus

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