Red phosphorus

Red phosphorus
	A sample of red phosphorus
Names
	Other names Amorphous phosphorus
Identifiers
CAS Number	7723-14-0;
3D model (JSmol)	Interactive image;
DrugBank	DB14151;
EC Number	231-768-7;
PubChem CID	5462309;
UNII	27YLU75U4W;
UN number	1338
CompTox Dashboard (EPA)	DTXSID1024382 ;
	InChI InChI=1S/P; Key: OAICVXFJPJFONN-UHFFFAOYSA-N;
	SMILES [P];
Properties
Chemical formula	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.^[1]

^ Kohn, Moritz (November 1944). "The discovery of red phosphorus (1847) by Anton von Schrötter (1802-1875)". Journal of Chemical Education. 21 (11): 522. Bibcode:1944JChEd..21..522K. doi:10.1021/ed021p522. ISSN 0021-9584.

[1] Kohn, Moritz (November 1944). "The discovery of red phosphorus (1847) by Anton von Schrötter (1802-1875)". Journal of Chemical Education. 21 (11): 522. Bibcode:1944JChEd..21..522K. doi:10.1021/ed021p522. ISSN 0021-9584.

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