Stable crystalline lithium nitride and process for its preparati

Details Stable crystalline lithium nitride and process for its preparati Stable crystalline lithium nitride and process for its preparati

1978-07-28

1980-11-18

Thomas, Earl C.

Chemistry of inorganic compounds

Nitrogen or compound thereof

Binary compound

23302R, 156600, 156617SP, 156624, 204195S, 350357, 429 33, 429 46, 429191, C01B 2106

Patent

active

042345545

ABSTRACT:
Crystalline lithium nitride, stable in air, characterized by a sodium content of less than 5.times.10.sup.-2 weight-percent, a potassium content of less than 10.sup.-2 weight-percent, a magnesium content of less than 1.times.10.sup.-2 weight-percent, and a silicon and iron content of 10.sup.-2 to 10.sup.-3 weight-percent each; is obtained by heating lithium having a purity of at least 99.9% in a vessel made of tungsten, niobium, ruthenium or tantalum in a nitrogen atmosphere at a pressure of at least 250 mm Hg in the absence of oxygen and water at a temperature of from 300.degree. C. to the melting point of lithium nitride.

REFERENCES:
patent: 2910347 (1959-10-01), Esmay
Fatt, et al., "Alkali Metal Dispersing" D. Van Nostrand Co., Inc., New Yo New York, 1962, p. 6.

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