Method of preparing NA2S (I)

Details Method of preparing NA2S (I) Method of preparing NA2S (I)

1990-04-19

1991-08-13

Straub, Gary P.

Chemistry of inorganic compounds

Sulfur or compound thereof

Binary compound

4235662, C01B 1700, C01B 1722

Patent

active

050395068

ABSTRACT:
In a method of preparing sodium monosulfide by means of reacting sodium and sulfur under protective gas, the entire sodium determined for reaction is placed in a receiver in a first stage, preheated to temperatures of 100.degree.-150.degree. C., sulfur is gradually added in the required amount of the material in the receiver under intensive mixing, whereby the temperature of the reaction mixture is maintained at 120.degree.-250.degree. C., and in a second stage the formed initial product is allowed to react under continuation of the mixing at 250.degree.-480.degree. C., until a Na.sub.2 S content of at least 95% by weight has been attained.

REFERENCES:
patent: 4640832 (1987-02-01), Bittner et al.

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