Analysis of crystals precipitated from laboratory wastewater
Abstract
P. P. von Weymarn kindly sent me a small bottle containing large crystals, along with a letter: "At the bottom of the bottle, where reagents were discarded when washing glassware, crystals of green and yellow color formed; I am sending you these crystals; perhaps they will be of interest for your crystal-chemical analysis." The crystals of different colors turned out to be of different sizes and different shapes. The yellow crystals are distinctly tabular; the thickness of the plates is nearly half a centimeter, and their largest dimension exceeds two centimeters. The greenish crystals are presented in a more isometric form and are at least four times smaller in linear dimensions.
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