1,3-Cyclohexanedione – Common knowledge for identification by visual inspection

2009-03-11View Original

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The pure substance should be a white powdery crystal that appears significantly shiny when exposed to light； Extremely dry, and can easily be inhaled into the nose in a dust-like form ； It does not change color even with long-term exposure to light, nor does it clump together (under prolonged sunlight exposure, it gradually turns white to pale yellow) ； After dissolution in ethanol, it forms a colorless, crystal-clear solution with no precipitates ； Furthermore, when observing the melting point, the high-quality samples exhibited a significantly higher initial melting point, with a very short melting range (within 2°C).

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1,3-Cyclohexanedione – Common knowledge for identification by visual inspection

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