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Malachite crystal aggregates and methods for their preparation
Malachite crystal aggregates and methods for their preparation
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机译:孔雀石晶体聚集体及其制备方法
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摘要
Agglomerates of spheroidal masses of malachite crystals are prepared so that they contain silicic acid. These agglomerates can be used to prepare a copper-acetylide complex, which in turn can be used as a catalyst for the preparation of 1,4-butynediol from acetylene and formaldehyde.
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