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Sodium phosphide
Chemical compound / From Wikipedia, the free encyclopedia
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Sodium phosphide is the inorganic compound with the formula Na3P. It is a black solid. It is often described as Na+ salt of the P3− anion.[2] Na3P is a source of the highly reactive phosphide anion. It should not be confused with sodium phosphate, Na3PO4.
Quick Facts Names, Identifiers ...
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Names | |
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Other names
sodium phosphide, trisodiophosphine | |
Identifiers | |
3D model (JSmol) |
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ChemSpider |
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ECHA InfoCard | 100.031.834 ![]() |
EC Number |
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PubChem CID |
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Properties | |
Na3P | |
Molar mass | 99.943 g/mol |
Appearance | red crystals |
Density | 1.74 g/cm3 |
Melting point | 650 °C (1,202 °F; 923 K) |
hydrolysis | |
Solubility | insoluble in liquid CO2 |
Structure | |
hexagonal a = 4.9512 Å c = 8.7874 Å | |
around P 5 near neighbours, trigonal bipyramid [1] | |
Related compounds | |
Other anions |
sodium arsenide sodium nitride |
Other cations |
aluminium phosphide lithium phosphide potassium phosphide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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In addition to Na3P, five other binary compositions of sodium and phosphorus are known: NaP, Na3P7, Na3P11, NaP7, and NaP15.[3]