C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
23/198
C01B 21/08 (2006.01)
Patent
CA 1087372
PREPARATION OF ALKALI-METAL AZIDES Abstract of the Disclosure Alkali-metal azide is prepared and purified from a slurry of alkali-metal azide/alkali metal hydroxide double salt in liquid ammonia by settling a layer of double salt from the slurry, separating the balance of the slurry from the double salt layer, then dissolving the layer in water and recovering purified alkali-metal azide from the water solution by crystallization.
283191
Borden Ladner Gervais Llp
Ppg Industries Inc.
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