Organomineral potassium humate was extracted from coal mining waste the Lenger deposit (Turkestan region, Kazakhstan) by alkaline extraction using an aqueous solution of hydroxide. The time and temperature process were investigated for degree yield product. A comprehensive study physicochemical properties raw material resulting production carried out chemical analysis, scanning electron microsc...

The biography of an outstanding military orientalist, Major General Georgy Arandarenko (1846–1908), scientist and statesman the Russian Empire second half 19th century is presented. data on his ancient Polish gentry origin from Yaranda clan Brudze coat arms Pomyan, about Zaporozhye ancestors, whose famous representatives were Cossack hetmans Timofey Taras Triasilo are given. main stages militar...