Lead azide assay

Illinois, "Lead Azide Laboratory Manual , Revised in 1953 by B.C.Carlson (Lab procedures used in the manuf.of Na and Pb azides and a brief description of manufg process developed by the Du Pont Co) 10)S.G. Landsman J.M.Rosen, "Improved Method for the Assay of Lead Azide", Navord Rept 4191(1955) lOJ.VfeStdl et al, Chem Prumysl 6, 50-2(1956) CA 50, 14229(1956) (Chelatometric detn of Pb in LA) 12)Y. Mizushima 8t S.Nagayama, JlndExplosives Soc Japan 17, 113-15(1956) CA 50, 16557... 

The most common assay method for lead azide used in the United States [12, 13] involves measurement of the nitrogen evolved during reaction with ceiic ammonium nitrate according to the following equation ... 

Figure 2. Distillation apparatus for lead azide assay [3]. A, 125-ml round-bottom distilling flask B, side-armed adapter C, clamp stands D, buret E, condenser F, rubber tubing G, heating mantle.

N. J. Blay, Methods for the Assay of Lead Azide for Specification Purposes, ERDE, Waltham Abbey, Essex, England, Ministry of Technology, Report No. ERDE ll/M/67, December 28, 1967. 

In the case where the use of mbberized cloth bags had been permitted in lieu of polyethylene material, analyses showed the presence of high concentrations of hydrolysis products and products of reaction with the drum in all regions of the drum. Electron paramagnetic resonance measurements showed the presence of iron and manganese in the lead azide lattice, although similar measurements on recently manufactured azide showed only trace amounts of iron and no manganese. The lead azide assay was also low. 

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