| 甲基异脲酸式硫酸盐的制备 |
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| 引用本文： | 邢存章,孙昌俊.甲基异脲酸式硫酸盐的制备[J].精细化工,2000,17(2):97-99. |
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| 作者姓名： | 邢存章 孙昌俊 |
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| 作者单位： | 1. 山东轻工业学院,化工系,山东,济南,250100
2. 山东大学,化学系,山东,济南,250100 |
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| 基金项目： | 山东省自然科学基金!资助项目（Y95B0417） |
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| 摘 要： | 向硫酸二甲酯和尿素的反应产物中，依次添加浓硫酸和异丙醇，ｎ（ＣＨ３ＯＳＯ２ＯＣＨ３）∶ｎ（Ｈ２ＮＣＯＮＨ２）∶ｎ（Ｈ２ＳＯ４）∶ｎ（ＣＨ３ＣＨＯＨＣＨ３）＝１∶１∶１－２∶１－９７，控制温度不超过４０ ℃；０ ～５ ℃下静置１５ ｈ，析出白色固体甲基异脲酸式硫酸盐。产品收率６０％ ，纯度达９８％ 以上。
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| 关 键 词： | 甲基异脲酸式硫酸盐 异丙醇 硫酸二甲酯 |
Preparation of Crystalline O-Methylisourea Hydrogen Sulfate |
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| XING Cun-zhang,SUN Chang-jun.Preparation of Crystalline O-Methylisourea Hydrogen Sulfate[J].Fine Chemicals,2000,17(2):97-99. |
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| Authors: | XING Cun-zhang SUN Chang-jun |
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| Abstract: | The preparation of crystalline O methylisourea hydrogen sulfate was studied.98% H\-2SO\-4 and isopropyl alcohol were added successively and slowly into the liquid reaction product of dimethyl sulfate and urea below 40 ℃.This mixture was cooled at 0-5 ℃ for 15 h,and the crystalline product was precipitated,filtrated and dried under vacuum.A yield of 60% and a pruity of 98 6% were given. |
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| Keywords: | O methylisourea hydrogen sulfate isopropyl alcohol dimethyl sulfate |
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