Red phosphorus

Red phosphorus
A sample of red phosphorus
Names
Other names
Amorphous phosphorus
Identifiers
EC Number
  • 231-768-7
Properties
P
Molar mass 30.974 g·mol−1
Density 2.34 g/cm3
Melting point 590 °C (1,094 °F; 863 K)
Hazards
NFPA 704 (fire diamond)
1
1
1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Red phosphorus is an allotrope of phosphorus. It is an amorphous polymeric red solid that is stable in air. It can be easily converted from white phosphorus under light or heating. It finds applications as matches and fire retardants. It was discovered in 1847 by Anton von Schrötter.

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