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Harmsworth's Universal Encyclopaedia vol X (1922) p6301 'Poudre B' says it is named for General Boulanger. All Poudre B variations are mainly a mixture of two types of nitrocotton (12 and 13% nitrogen, slightly, and completely soluble in ether alcohol). The Poudre BN version contained barium and potassium nitrates. - Rod57 ( talk) 01:10, 20 September 2016 (UTC)
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Harmsworth's Universal Encyclopaedia vol X (1922) p6301 'Poudre B' says it is named for General Boulanger. All Poudre B variations are mainly a mixture of two types of nitrocotton (12 and 13% nitrogen, slightly, and completely soluble in ether alcohol). The Poudre BN version contained barium and potassium nitrates. - Rod57 ( talk) 01:10, 20 September 2016 (UTC)