Description

Red Phosphorus

Red phosphorus , also known as red phosphorus, is a purplish-red amorphous powder, glossy, non-toxic. High-pressure heat to 590 ° C began to melt, if not pressurised, it does not melt and sublimation, vaporisation and then condensation is obtained white phosphorus. Red phosphorus to P4 tetrahedral single bond to form a chain or ring of high polymerisation structure, with high stability, insoluble in water, carbon disulphide, slightly soluble in anhydrous ethanol, soluble in alkaline solution. It acts with nitric acid to generate phosphoric acid, and heats in chlorine gas to generate chloride. Yellow phosphorus in a vacuum at atmospheric pressure, heated to 250 ℃ for several days, gradually converted to red phosphorus. Red phosphorus can be used in the semiconductor industry as a diffusion source, organic synthesis and the manufacture of matches, but also used as insecticides, rodenticides, fireworks and pyrotechnic bombs.

Application

They use it to oxidise and absorb, and to make phosphoric acid and other phosphides. Phosphorus is made up of two types: yellow and red. Yellow phosphorus is used in pesticides. It is also used to make all phosphorus-containing pesticides. It reacts with sulfur to get phosphorus disulfide and reacts with chlorine to get phosphorus trichloride. This makes other phosphorus-containing chemicals. Yellow phosphorus is used to make phosphoric acid, red phosphorus and phosphorus pentoxide. It is also used to make incendiary bombs, signal bombs and ferrophosphorus alloys. It is used in medicine, organic raw materials and other industries.

Secondly, it is used to produce other phosphorus compounds and raw materials for manufacturing organic phosphorus pesticides and rodenticides. A small amount is also used to produce red phosphorus and phosphorus pentoxide.

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