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["甲醇及精制技術交流版",,"甲醇の沸点範囲: 甲醇及其杂质的沸点不同,利用蒸馏法进行分馏,在温度a℃、压力b kPa时,测定其初馏点与干馏点。初馏点与干馏点之间的温度即是被测甲醇的沸程。甲醇纯度越高,沸点越稳定,沸程越短,它是检测甲醇纯度的一个方面。初馏点:在规定的标准条件下进行蒸馏时,从冷凝器末端滴下第一滴液体时检测的温度。干馏点:在规定的标准条件下进行蒸馏时,蒸馏瓶底部最后一滴液体汽化时所检测到的瞬间温度。馏程温度范围:初馏点与干馏点之间的温度。","甲醇纯度假设为c%,沸程有多长?","純粋甲醇の標準沸程と他の標準化学参数都可以在坛子里搜到"]

2019-10-31View Original

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甲醇的沸程: 根据甲醇及其杂质沸点的不同,利用蒸馏法进行分馏,在温度0℃,压力101325Pa时,测定其初馏点与干馏点。初馏点及干馏点之间的温度即是被测甲醇的沸程。甲醇纯度越高,沸点越稳定,沸程越短,它是检测甲醇纯度的一个方面。 初馏点:在规定的标准条件下进行蒸馏时,从冷凝器末端滴下第一滴液体时检测的温度。 干馏点:在规定的标准条件下进行蒸馏时,蒸馏瓶底部最后一滴液体汽化时所检测到的瞬间温度。 馏程温度范围:初馏点与干馏点之间的温度。
Reply #22019-10-31
甲醇纯度假设为100%,沸程有多长?
Reply #32019-10-31
纯净甲醇的标准沸程和其他标准化学参数都可以在坛子里搜到

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