Abstract

AbstractOptical properties of small droplets of aqueous solutions of zinc chloride were studied in the 3 μm to 12 μm spectral range. The droplets are generated by combustion of a pyrotechnic screening smoke composition containing hexachloroethane and zinc. Mass extinction coefficients were determined and interpreted by the theory of Mie.The optical constants of aqueous solutions of zinc chloride are markedly different from those expected for a screening smoke of low IR transparency.

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