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Colorless to slightly yellow fuming liquid.

Mol. Wt.: 153.39
M.P.: 20C
B.P.: 105.1C
Density: 1.685 @ 15.5C
Vapor Pressure: 40 mm @ 27.3C
Vapor Density: 5.3
Used as the phosphorus source for phosphorus diffusion.

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Designated area

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DP number

The degree of polymerization, the average number of monomer units per polymer unit.

Law of Partial Pressures (Dalton's Law)

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Law of Conservation of Energy

Energy cannot be created or destroyed, it may be changed from one form to another.

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A liquid as defined by NFPD and DOT as having a flash point below 37.8°C (100°F).

Ferromagnetism

The ability of a substance to become permanently magnetized by exposure to an external magnetic field.

Band

A series of very closely spaced, nearly continuous molecular orbitals that belong to the crystal as a whole.

Molecular Geometry

The arrangement of atoms (not lone pairs of electrons) around a central atom of a molecule or polyatomic ion.

Precipitate

An insoluble solid formed by mixing in solution the constituent ions of a slightly soluble solution.