Pdf to word nitro online5/25/2023 ![]() ![]() The pure powdered material is pyrophoric, but not its large crystals. ![]() Commonly, the impure gray material is used in synthesis, since the impurities are innocuous and can be easily separated from the organic products. Large-scale purifications employ a Soxhlet extractor. This material can be purified by recrystallization from diethyl ether. LAH is a colourless solid but commercial samples are usually gray due to contamination.
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