Preparation of metal sulfides

Details Preparation of metal sulfides Preparation of metal sulfides

1989-06-23

1991-07-16

Straub, Gary P.

Chemistry of inorganic compounds

Sulfur or compound thereof

Binary compound

4235661, 4235663, 2523014S, 2523016S, C01B 1722, C01B 1742, C09K 1108, C09K 1154

Patent

active

050323741

ABSTRACT:
Metal sulfides are prepared by reacting a compound of the metal and an oxygen-containing anion, with a source of carbonyl sulfide. The resulting metal sulfide is not contaminated by hydrogen, as in the form of hydroxides, and is suitable for use in photoluminescence and electroluminescence applications. The starting material is preferably a metal oxalate, which may be appropriately doped, and the source of the carbonyl sulfide is preferably a mixture of carbon monoxide and sulfur dioxide (to produce a reducing mode) or a mixture of carbon dioxide and carbon disulfide (to produce an oxidizing mode). Oxyanions that decompose to a produce a nascent oxygen anion, as does the oxalate, are preferred, as they can be reacted to achieve a high conversion rate to the sulfide.

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