Improvements in the manufacture of dextrinated lead azide

Dextrinated lead azide in granular free-flowing form is prepared by reacting an aqueous solution of a lead salt with an aqueous solution of an azide salt in the presence of dextrin and an anionic surface active agent, for example a disulphonic acid of dinaphthyl methane or a sodium salt of a naphtha...

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Hauptverfasser:	HOLLOWAY KENNETH JOHN, THOMAS ARWYN THEOPHILUS, TAYLOR GEORGE WILLIAM CHARLES
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOUNDS THEREOF EXPLOSIVES EXPLOSIVES OR THERMIC COMPOSITIONS INORGANIC CHEMISTRY MANUFACTURE THEREOF MATCHES METALLURGY NON-METALLIC ELEMENTS USE OF SINGLE SUBSTANCES AS EXPLOSIVES
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Beschreibung
Zusammenfassung:	Dextrinated lead azide in granular free-flowing form is prepared by reacting an aqueous solution of a lead salt with an aqueous solution of an azide salt in the presence of dextrin and an anionic surface active agent, for example a disulphonic acid of dinaphthyl methane or a sodium salt of a naphthalene sulphonic acid/ formaldehyde condensate. Also present may be sodium hydroxide and an alkali metal salt of a hydroxycarboxylic or aminocarboxylic acid. Preferably the lead salt solution and azide solution are added separately to a stirred aqueous solution of dextrin and the surface active agent.