{"id":7274,"date":"2024-08-28T08:06:18","date_gmt":"2024-08-28T08:06:18","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=7274"},"modified":"2026-04-28T10:42:34","modified_gmt":"2026-04-28T10:42:34","slug":"purification-of-common-solvents","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/zh\/purification-of-common-solvents\/","title":{"rendered":"\u666e\u901a\u6eb6\u5242\u7684\u51c0\u5316"},"content":{"rendered":"<h1><strong>\u666e\u901a\u6eb6\u5242\u7684\u51c0\u5316<\/strong><\/h1>\n<p><!-- lc-qa-start --><\/p>\n<p><strong>\u5feb\u901f\u56de\u7b54\uff1a<\/strong> General coating decisions are usually made by balancing substrate wetting, rheology, cure or drying, and long-term film performance. The best answer usually comes from checking the whole coating process, not just one ingredient.<\/p>\n<p><!-- lc-qa-end --><\/p>\n<p>\u5316\u5b66\u4f9b\u5e94\u5546\u63d0\u4f9b\u7684\u5e38\u7528\u8bd5\u5242\u4ec5\u80fd\u6ee1\u8db3\u4e00\u822c\u5316\u5b66\u53cd\u5e94\u7684\u9700\u8981\u3002\u4e3a\u4e86\u786e\u4fdd\u67d0\u4e9b\u6709\u673a\u5408\u6210\u53cd\u5e94\u7684\u987a\u5229\u8fdb\u884c\uff0c\u901a\u5e38\u9700\u8981\u5bf9\u8bd5\u5242\u8fdb\u884c\u8fdb\u4e00\u6b65\u7eaf\u5316\u3002\u5e38\u89c1\u7684\u6eb6\u5242\u5904\u7406\u65b9\u6cd5\u662f\u84b8\u998f\u3002\u5982\u679c\u53cd\u5e94\u53ea\u8981\u6c42\u65e0\u6c34\uff0c\u53ef\u5728\u51b7\u51dd\u7ba1\u4e2d\u52a0\u5165\u5e72\u71e5\u7ba1\u3001\u6cb9\u5c01\u6216\u6c2e\u6c14\u7403\u586b\u5145\u5373\u53ef\uff0c\u5982\u679c\u9700\u8981\u8fbe\u5230\u65e0\u6c34\u65e0\u6c27\u6761\u4ef6\uff0c\u5219\u9700\u8981\u5bf9\u6eb6\u5242\u8fdb\u884c\u8131\u6c27\u5904\u7406\u3002\u4e00\u822c\u5728\u6c2e\u6c14\u73af\u5883\u4e0b\u8fdb\u884c\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u8bd5\u5242\u7ea7\u6eb6\u5242\u7684\u7eaf\u5316 \u65e0\u6c34\u8bd5\u5242\u7ea7\u6eb6\u5242\u901a\u5e38\u5177\u6709\u8db3\u591f\u7684\u7eaf\u5ea6\uff0c\u6709\u65f6\u65e0\u9700\u84b8\u998f\u3002\u4e3a\u786e\u4fdd\u8db3\u591f\u7684\u5e72\u71e5\u5ea6\uff0c\u53ef\u5728\u50a8\u5b58\u8fc7\u7a0b\u4e2d\u6dfb\u52a0\u6d3b\u6027\u5206\u5b50\u7b5b\u3002\u8981\u4f7f\u6eb6\u5242\u8131\u6c27\uff0c\u53ef\u4f7f\u7528\u6ce8\u5c04\u5668\u6216\u73bb\u7483\u7ba1\u5411\u5176\u4e2d\u6ce8\u5165\u6c2e\u6c14\u7ea6\u4e94\u5206\u949f\u3002\u4e00\u822c\u6eb6\u5242\u7684\u63d0\u7eaf \u5927\u591a\u6570\u6eb6\u5242\u90fd\u53ef\u4ee5\u5728\u60f0\u6027\u6c14\u6c1b\u4e2d\u4ece\u5e72\u71e5\u5242\u4e2d\u84b8\u998f\u51fa\u6765\uff0c\u4ece\u800c\u83b7\u5f97\u8db3\u591f\u7684\u7eaf\u5ea6\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>1.\u70f7\u70c3<\/p>\n<p>\u70f7\u70c3\uff0c\u5982\u5df1\u70f7\u3001\u620a\u70f7\u7b49\u3002\u9996\u5148\u7528\u6d53\u786b\u9178\u6e05\u6d17\u6570\u6b21\u4ee5\u9664\u53bb\u70ef\u70c3\uff0c\u7136\u540e\u7528\u6c34\u6e05\u6d17\uff0c\u7528 CaCl2 \u5e72\u71e5\uff0c\u5fc5\u8981\u65f6\u7528\u94a0\u4e1d\u6216 P2O5 \u5e72\u71e5\uff0c\u6700\u540e\u84b8\u998f\u3002\u50a8\u5b58\u5728\u5bc6\u5c01\u7684\u8bd5\u5242\u74f6\u4e2d\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>2.\u82b3\u9999\u70c3<\/p>\n<p>\u4f8b\u5982\u82ef\u3001\u7532\u82ef\u3001\u4e8c\u7532\u82ef\u7b49\u3002\u7528 CaCl2 \u5e72\u71e5\uff0c\u5fc5\u8981\u65f6\u7528\u94a0\u6216 P2O5 \u5e72\u71e5\uff0c\u7136\u540e\u84b8\u998f\u3002\u50a8\u5b58\u5728\u5bc6\u5c01\u7684\u8bd5\u5242\u74f6\u4e2d\u30023.<\/p>\n<p>&nbsp;<\/p>\n<p>3.\u6c2f\u5316\u70f7\u70c3<\/p>\n<p>\u5982\u4e8c\u6c2f\u7532\u70f7\u3001\u6c2f\u4eff\u3001\u56db\u6c2f\u5316\u78b3\u3001\u4e8c\u6c2f\u4e59\u70f7\u7b49\u3002\u6d17\u6da4\u4ee5\u9664\u53bb\u9187\u7c7b\u7b49\u3002\u7528\u6c34\u6d17\u6da4\u4ee5\u9664\u53bb\u9187\u7c7b\u7b49\uff0c\u7528 CaCl2 \u5e72\u71e5\uff0c\u5728 P2O5 \u6216 CaH2 \u4e2d\u56de\u6d41\u84b8\u53d1\u3002\u5207\u52ff\u7528\u94a0\u4e1d\u5e72\u71e5\uff0c\u5426\u5219\u4f1a\u53d1\u751f\u7206\u70b8\u3002\u957f\u671f\u50a8\u5b58\u65f6\u5e94\u5c06\u5176\u88c5\u5165\u5bc6\u95ed\u74f6\u4e2d\u5e76\u7f6e\u4e8e\u9ed1\u6697\u5904\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>4.\u919a\u548c\u544b\u5583<\/p>\n<p>\u5982\u4e59\u919a\u548c\u56db\u6c22\u544b\u5583\u3002\u8bb8\u591a\u919a\u5728\u4e0e\u7a7a\u6c14\u63a5\u89e6\u65f6\u4f1a\u7f13\u6162\u5f62\u6210\u8fc7\u6c27\u5316\u7269\uff0c\u8fd9\u4e9b\u8fc7\u6c27\u5316\u7269\u4e0d\u6613\u6325\u53d1\uff0c\u7ed3\u6784\u4e0d\u660e\u3002\u8fc7\u6c27\u5316\u7269\u9047\u70ed\u4f1a\u5206\u89e3\u548c\u7206\u70b8\u3002\u56e0\u6b64\uff0c\u957f\u671f\u5b58\u653e\u7684\u919a\u7c7b\u548c\u544b\u5583\u7c7b\u7269\u8d28\u5728\u4f7f\u7528\u524d\uff0c\u7279\u522b\u662f\u5728\u84b8\u998f\u524d\uff0c\u5e94\u68c0\u67e5\u662f\u5426\u5b58\u5728\u8fc7\u6c27\u5316\u7269\u3002\u6d4b\u8bd5\u65b9\u6cd5\uff1a\u5c06 1 mL \u542b\u6709\u4e00\u6ef4\u6dc0\u7c89\u6307\u793a\u5242\u7684 10% KI \u6eb6\u6db2\u4e0e 10 mL \u4e59\u919a\u6eb6\u6db2\u6df7\u5408\uff0c\u65e0\u989c\u8272\u53d8\u5316\uff0c\u5219\u65e0\u8fc7\u6c27\u5316\u7269\u3002\u6216\u8005\u7528 1% \u786b\u9178\u4e9a\u94c1\u94f5\u6eb6\u6db2\u3001\u786b\u9178\u4e9a\u94c1\u548c\u786b\u6c30\u9178\u94be\u6eb6\u6db2\u68c0\u6d4b\u3002\u5982\u679c\u5b58\u5728\u8fc7\u6c27\u5316\u7269\uff0c\u5219\u5728\u4e59\u919a\u4e2d\u52a0\u5165 5% FeSO4 \u6216\u4e9a\u786b\u9178\u6c22\u94a0\u6eb6\u6db2\u5e76\u6447\u52a8\uff0c\u4f7f\u8fc7\u6c27\u5316\u7269\u5206\u89e3\uff0c\u7136\u540e\u7528 CaCl2 \u9884\u5e72\u71e5\uff0c\u5e76\u5728\u4e1d\u72b6\u94a0\u6216 LiAlH4 \u4e2d\u56de\u6d41\u84b8\u53d1\u3002\u4fdd\u5b58\u5728\u5bc6\u95ed\u74f6\u4e2d\uff0c\u5e76\u7f6e\u4e8e\u9634\u51c9\u907f\u5149\u5904\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u5e38\u7528\u6709\u673a\u6eb6\u5242\u7684\u63d0\u7eaf - \u4e59\u919a \u6cb8\u70b9 34.51 \u2103\uff0c\u6298\u5c04\u7387 1.3526\uff0c\u76f8\u5bf9\u5bc6\u5ea6 0.71378\u3002\u666e\u901a\u4e59\u919a\u901a\u5e38\u542b\u6709 2% \u4e59\u9187\u548c 0.5% \u6c34\u3002\u4e59\u919a\u4e2d\u901a\u5e38\u542b\u6709\u5c11\u91cf\u8fc7\u6c27\u5316\u7269\u3002<\/p>\n<p>\u8fc7\u6c27\u5316\u7269\u7684\u68c0\u9a8c\u4e0e\u9664\u53bb\uff1a\u5c062\uff5e3\u6ef4\u6d53\u786b\u9178\u30011mL2%\u7898\u5316\u94be\u6eb6\u6db2\uff08\u82e5\u7898\u5316\u94be\u6eb6\u6db2\u5df2\u88ab\u7a7a\u6c14\u6c27\u5316\uff0c\u53ef\u7528\u7a00\u4e9a\u786b\u9178\u94a0\u6eb6\u6db2\uff0c\u76f4\u81f3\u9ec4\u8272\u6d88\u5931\uff09\u548c1\uff5e2\u6ef4\u6dc0\u7c89\u6eb6\u6db2\uff0c\u6df7\u5300\u540e\u52a0\u5165\u4e59\u919a\uff0c\u51fa\u73b0\u84dd\u8272\u5373\u8868\u793a\u6709\u8fc7\u6c27\u5316\u7269\u5b58\u5728\u3002\u9664\u53bb\u8fc7\u6c27\u5316\u7269\u53ef\u7528\u6765\u914d\u5236\u65b0\u7684\u786b\u9178\u4e9a\u94c1\u7a00\u6eb6\u6db2\uff08\u914d\u5236\u65b9\u6cd5\u662f FeSO47H2O60g\u3001100mL \u6c34\u548c 6mL \u6d53\u786b\u9178\uff09\u3002\u5c06 100mL \u4e59\u919a\u548c 10mL \u65b0\u914d\u5236\u7684\u786b\u9178\u4e9a\u94c1\u6eb6\u6db2\u5728\u5206\u6db2\u6f0f\u6597\u4e2d\u6d17\u6da4\u6570\u6b21\uff0c\u76f4\u5230\u6ca1\u6709\u8fc7\u6c27\u5316\u7269\u4e3a\u6b62\u3002<\/p>\n<p>\u6d4b\u8bd5\u5e76\u53bb\u9664\u9152\u7cbe\u548c\u6c34\uff1a\u5c06\u5c11\u8bb8\u9ad8\u9530\u9178\u94be\u7c89\u672b\u548c\u4e00\u7c92\u6c22\u6c27\u5316\u94a0\u653e\u5165\u4e59\u919a\u4e2d\u3002\u9759\u7f6e\u540e\uff0c\u6c22\u6c27\u5316\u94a0\u8868\u9762\u4f1a\u51fa\u73b0\u68d5\u8272\u9897\u7c92\uff0c\u8bc1\u660e\u9152\u7cbe\u5b58\u5728\u3002\u7528\u65e0\u6c34\u786b\u9178\u94dc\u68c0\u6d4b\u662f\u5426\u6709\u6c34\u3002\u9996\u5148\u7528\u65e0\u6c34\u6c2f\u5316\u9499\u9664\u53bb\u5927\u90e8\u5206\u6c34\u5206\uff0c\u7136\u540e\u7528\u91d1\u5c5e\u94a0\u5e72\u71e5\u3002\u65b9\u6cd5\u662f\uff1a\u5c06 100mL \u4e59\u919a\u7f6e\u4e8e\u5e72\u71e5\u7684\u9525\u5f62\u74f6\u4e2d\uff0c\u52a0\u5165 20~25g \u65e0\u6c34\u6c2f\u5316\u9499\uff0c\u74f6\u53e3\u7528\u8f6f\u6728\u585e\u585e\u7d27\uff0c\u653e\u7f6e\u4e00\u5929\u4ee5\u4e0a\uff0c\u5e76\u95f4\u6b47\u632f\u8361\uff0c\u7136\u540e\u84b8\u998f\u6536\u96c6 33~37\u2103 \u7684\u998f\u5206\u3002\u7528\u538b\u94a0\u5668\u5c06 1g \u91d1\u5c5e\u94a0\u76f4\u63a5\u538b\u6210\u94a0\u4e1d\uff0c\u7f6e\u4e8e\u76db\u6709\u4e59\u919a\u7684\u74f6\u4e2d\uff0c\u7528\u8f6f\u6728\u585e\u585e\u7d27\uff0c\u5e76\u63d2\u4e0a\u6c2f\u5316\u9499\u5e72\u71e5\u7ba1\u3002\u6216\u8005\u5c06\u73bb\u7483\u7ba1\u7684\u4e00\u7aef\u63d2\u5165\u8f6f\u6728\u585e\u4e0a\u7684\u6bdb\u7ec6\u7ba1\u4e2d\uff0c\u8fd9\u6837\u65e2\u53ef\u4ee5\u9632\u6b62\u6c34\u5206\u6d78\u5165\uff0c\u53c8\u53ef\u4ee5\u8ba9\u4ea7\u751f\u7684\u6c14\u4f53\u6392\u51fa\u3002\u653e\u7f6e\u81f3\u65e0\u6c14\u6ce1\u4ea7\u751f\u5373\u53ef\u4f7f\u7528\uff1b\u653e\u7f6e\u540e\uff0c\u5982\u679c\u94a0\u4e1d\u8868\u9762\u53d8\u9ec4\u53d8\u7c97\uff0c\u5219\u5fc5\u987b\u518d\u6b21\u84b8\u716e\uff0c\u7136\u540e\u538b\u5165\u94a0\u4e1d\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u51c0\u5316\u5e38\u7528\u6709\u673a\u6eb6\u5242 - \u56db\u6c22\u544b\u5583\uff08THF\uff09 \u6cb8\u70b9 67 \u2103\uff0864.5 \u2103\uff09\uff0c\u6298\u5c04\u7387 1.4050\uff0c\u76f8\u5bf9\u5bc6\u5ea6 0.8892\u3002<\/p>\n<p>\u56db\u6c22\u544b\u5583\u4e0e\u6c34\u6df7\u6eb6\uff0c\u5e38\u542b\u6709\u5c11\u91cf\u7684\u6c34\u548c\u8fc7\u6c27\u5316\u7269\u3002\u82e5\u8981\u5236\u53d6\u65e0\u6c34\u56db\u6c22\u544b\u5583\uff0c\u53ef\u7528\u56de\u6d41\u6c22\u5316\u94dd\u9502\u4e2d\u5206\u79bb\u51fa\u7684\u6c34\u5206\uff08\u901a\u5e38 1000mL \u7ea6 2\uff5e4g \u6c22\u5316\u94dd\u9502\uff09\u9664\u53bb\u6c34\u5206\u548c\u8fc7\u6c27\u5316\u7269\uff0c\u7136\u540e\u84b8\u998f\uff0c\u6536\u96c6 66\u2103\u998f\u5206\uff08\u4e0d\u8981\u84b8\u998f\uff0c\u5269\u4f59\u5c11\u91cf\u6b8b\u6db2\u5373\u5012\u51fa\uff09\u3002\u7cbe\u5236\u540e\u7684\u6db2\u4f53\u52a0\u5165\u94a0\u4e1d\uff0c\u5e76\u5728\u6c2e\u6c14\u73af\u5883\u4e2d\u4fdd\u5b58\u3002<\/p>\n<p>\u5728\u5904\u7406\u56db\u6c22\u544b\u5583\u65f6\uff0c\u5e94\u8fdb\u884c\u5c11\u91cf\u6d4b\u8bd5\uff0c\u53ea\u6709\u5728\u786e\u5b9a\u5176\u4e2d\u4ec5\u542b\u6709\u5c11\u91cf\u6c34\u5206\u548c\u8fc7\u6c27\u5316\u7269\uff0c\u4e14\u4f5c\u7528\u4e0d\u592a\u5f3a\u70c8\u65f6\uff0c\u624d\u80fd\u8fdb\u884c\u51c0\u5316\u3002\uff01\uff01\uff01\uff01\uff01 \u56db\u6c22\u544b\u5583\u4e2d\u7684\u8fc7\u6c27\u5316\u7269\u53ef\u4ee5\u7528\u9178\u5316\u7898\u5316\u94be\u6eb6\u6db2\u6765\u68c0\u6d4b\u3002\u5982\u679c\u5b58\u5728\u5927\u91cf\u8fc7\u6c27\u5316\u7269\uff0c\u5219\u5e94\u5355\u72ec\u5904\u7406\u3002\u5927\u91cf\u8fc7\u6c27\u5316\u7269\u53ef\u4ee5\u7528 CuCl \u56de\u6d41\u53bb\u9664\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u5e38\u7528\u6709\u673a\u6eb6\u5242\u7684\u51c0\u5316 - \u4e8c\u6076\u70f7 \u6cb8\u70b9 101.5 \u00b0C\uff0c\u7194\u70b9 12 \u00b0C\uff0c\u6298\u5c04\u7387 1.4424\uff0c\u76f8\u5bf9\u5bc6\u5ea6 1.0336\u3002<\/p>\n<p>\u4e8c\u5641\u70f7\u53ef\u4efb\u610f\u4e0e\u6c34\u6df7\u5408\uff0c\u5e38\u542b\u6709\u5c11\u91cf\u4e8c\u4e59\u9187\u7f29\u919b\u548c\u6c34\uff0c\u4e45\u5b58\u7684\u4e8c\u5641\u70f7\u4e2d\u53ef\u80fd\u542b\u6709\u8fc7\u6c27\u5316\u7269\uff08\u9274\u522b\u548c\u9664\u53bb\u53c2\u7167\u919a\uff09\u3002\u4e8c\u6076\u70f7\u7684\u63d0\u7eaf\u65b9\u6cd5\uff0c\u5728 500mL \u4e8c\u6076\u70f7\u4e2d\u52a0\u5165 8mL \u6d53\u76d0\u9178\u548c 50mL \u6c34\u6eb6\u6db2\uff0c\u56de\u6d41 6~10h\uff0c\u5728\u56de\u6d41\u8fc7\u7a0b\u4e2d\uff0c\u7f13\u6162\u901a\u5165\u6c2e\u6c14\u9664\u53bb\u751f\u6210\u7684\u4e59\u919b\u3002\u51b7\u5374\u540e\u52a0\u5165\u56fa\u4f53\u6c22\u6c27\u5316\u94be\u81f3\u4e0d\u80fd\u518d\u6eb6\u89e3\uff0c\u5206\u79bb\u6c34\u5c42\uff0c\u518d\u7528\u56fa\u4f53\u6c22\u6c27\u5316\u94be\u5e72\u71e5 24 \u5c0f\u65f6\uff0c\u7136\u540e\u8fc7\u6ee4\uff0c\u5728\u91d1\u5c5e\u94a0\u5b58\u5728\u4e0b\u52a0\u70ed\u56de\u6d41 8~12 \u5c0f\u65f6\uff0c\u6700\u540e\u5728\u91d1\u5c5e\u94a0\u5b58\u5728\u4e0b\u84b8\u998f\uff0c\u538b\u5165\u9965\u997f\u4e1d\u5bc6\u5c01\u4fdd\u5b58\u3002\u7cbe\u5236\u7684 1,4-Dioxane \u5e94\u907f\u514d\u4e0e\u7a7a\u6c14\u63a5\u89e6\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>5.\u9170\u80fa\u7c7b<\/p>\n<p>\u5982\u4e8c\u7532\u57fa\u7532\u9170\u80fa\u3001\u4e8c\u7532\u57fa\u4e59\u9170\u80fa\u3001HMPT\u3002\u52a0\u5165 CaH2 \u56de\u6d41\uff0c\u52a0\u538b\u84b8\u53d1\uff0c\u5426\u5219\u6613\u5206\u89e3\u3002\u52a0\u5165\u65b0\u6d3b\u5316\u7684\u5206\u5b50\u7b5b\uff0c\u88c5\u74f6\u5e76\u6ce8\u660e\u65e5\u671f\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u5e38\u7528\u6709\u673a\u6eb6\u5242\u7684\u63d0\u7eaf N\uff0cN-\u4e8c\u7532\u57fa\u7532\u9170\u80fa -DMF N\uff0cN-\u4e8c\u7532\u57fa\u7532\u9170\u80fa \u6cb8\u70b9 149 \uff5e 156 \u2103\uff0c\u6298\u5149\u7387 1.430 5\uff0c\u76f8\u5bf9\u5bc6\u5ea6 0.948 7\u3002\u65e0\u8272\u6db2\u4f53\uff0c\u53ef\u4e0e\u5927\u591a\u6570\u6709\u673a\u6eb6\u5242\u548c\u6c34\u4efb\u610f\u6df7\u5408\uff0c\u5bf9\u6709\u673a\u548c\u65e0\u673a\u5316\u5408\u7269\u7684\u6eb6\u89e3\u6027\u826f\u597d\u3002<\/p>\n<p>N,N-\u4e8c\u7532\u57fa\u7532\u9170\u80fa\u542b\u6709\u5c11\u91cf\u6c34\u5206\u3002\u5728\u5e38\u538b\u4e0b\u84b8\u998f\u65f6\u4f1a\u53d1\u751f\u4e00\u4e9b\u5206\u89e3\uff0c\u4ea7\u751f\u4e8c\u7532\u80fa\u548c\u4e00\u6c27\u5316\u78b3\u3002\u6709\u9178\u6216\u78b1\u5b58\u5728\u65f6\u4f1a\u52a0\u901f\u5206\u89e3\u3002\u56e0\u6b64\uff0c\u5f53\u52a0\u5165\u56fa\u4f53\u6c22\u6c27\u5316\u94be\uff08\u94a0\uff09\u5e76\u5728\u5ba4\u6e29\u4e0b\u653e\u7f6e\u6570\u5c0f\u65f6\u540e\uff0c\u4f1a\u53d1\u751f\u4e00\u4e9b\u5206\u89e3\u3002\u56e0\u6b64\uff0c\u6700\u5e38\u7528\u786b\u9178\u9499\u3001\u786b\u9178\u9541\u3001\u6c27\u5316\u94a1\u3001\u7845\u80f6\u6216\u5206\u5b50\u7b5b\u6765\u5e72\u71e5\u4ea7\u54c1\uff0c\u7136\u540e\u5728\u51cf\u538b\u4e0b\u84b8\u998f\uff0c\u6536\u96c6 76\u00b0C\/4800 Pa\uff0836 mmHg\uff09\u7684\u998f\u5206\u3002\u5176\u4e2d\uff0c\u5982\u679c\u542b\u6c34\u8f83\u591a\uff0c\u53ef\u52a0\u5165\u5176 1\/10 \u4f53\u79ef\u7684\u82ef\uff0c\u5728\u5e38\u538b\u548c 80\u2103\u4ee5\u4e0b\u84b8\u53d1\u6c34\u548c\u82ef\uff0c\u518d\u7528\u65e0\u6c34\u786b\u9178\u9541\u6216\u6c27\u5316\u94a1\u5e72\u71e5\uff0c\u6700\u540e\u8fdb\u884c\u51cf\u538b\u84b8\u998f\u3002\u7eaf\u5316\u540e\u7684 N,N-\u4e8c\u7532\u57fa\u7532\u9170\u80fa\u5e94\u907f\u5149\u4fdd\u5b58\u3002<\/p>\n<p>\u5982\u679c N,N-\u4e8c\u7532\u57fa\u7532\u9170\u80fa\u4e2d\u5b58\u5728\u6e38\u79bb\u80fa\uff0c\u53ef\u4ee5\u7528 2,4-\u4e8c\u785d\u57fa\u6c1f\u82ef\u6765\u68c0\u9a8c\u662f\u5426\u4f1a\u4ea7\u751f\u989c\u8272\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>6.\u4e8c\u7532\u57fa\u4e9a\u781c<\/p>\n<p>\u52a0\u5165 CaH2 \u5e76\u6405\u62cc\u8fc7\u591c\uff0c\u7136\u540e\u51cf\u538b\u5206\u998f\u3002\u52a0\u5165\u65b0\u6d3b\u5316\u7684\u5206\u5b50\u7b5b \u4fdd\u5b58\u5728\u5c0f\u74f6\u4e2d\u5e76\u6ce8\u660e\u65e5\u671f\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>7.\u5421\u5576<\/p>\n<p>\u53ef\u4ee5\u662f KOH\u3001NaOH\u3001CaO\u3001BaO \u6216\u94a0\uff0c\u7136\u540e\u84b8\u53d1\u3002\u52a0\u5165\u65b0\u6d3b\u5316\u7684 5\u00c5 \u5206\u5b50\u7b5b \u5bc6\u95ed\u4fdd\u5b58\u5e76\u6ce8\u660e\u65e5\u671f\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u5e38\u7528\u6709\u673a\u6eb6\u5242\u7684\u63d0\u7eaf - \u5421\u5576 \u6cb8\u70b9 115.5\u00b0C\uff0c\u6298\u5c04\u7387 1.509 5\uff0c\u76f8\u5bf9\u5bc6\u5ea6 0.9819\u3002<br \/>\n\u5206\u6790\u7eaf\u5421\u5576\u542b\u6709\u5c11\u91cf\u6c34\u5206\uff0c\u53ef\u7528\u4e8e\u4e00\u822c\u5b9e\u9a8c\u3002\u82e5\u8981\u5236\u53d6\u65e0\u6c34\u5421\u5576\uff0c\u53ef\u5c06\u5421\u5576\u4e0e\u6c22\u6c27\u5316\u94be\uff08\u94a0\uff09\u56de\u6d41\uff0c\u7136\u540e\u5206\u79bb\u51fa\u6c34\u5206\u6c7d\u5316\u5907\u7528\u3002\u5e72\u71e5\u7684\u5421\u5576\u5438\u6c34\u6027\u5f3a\uff0c\u5e94\u8d2e\u5b58\u5728\u7528\u77f3\u8721\u5c01\u53e3\u7684\u5bb9\u5668\u4e2d\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>8.\u4e59\u9187<\/p>\n<p>\u4e3b\u8981\u6742\u8d28\u4e3a\u6742\u9187\u6cb9\u3001\u919b\u3001\u9187\u3001\u916e\u548c\u6c34\u3002\u53ef\u901a\u8fc7\u56de\u6d41\u9541\u5c51\u548c\u7898\uff0c\u7136\u540e\u56de\u6d41 CaO \u5e76\u84b8\u53d1\u6765\u63d0\u7eaf\u3002\u52a0\u5165\u65b0\u6d3b\u5316\u7684 3A \u5206\u5b50\u7b5b\uff0c\u5e76\u50a8\u5b58\u5728\u5c0f\u74f6\u4e2d\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u5e38\u7528\u6709\u673a\u6eb6\u5242\u7684\u51c0\u5316 - \u4e59\u9187 \u6cb8\u70b9 78.5 \u2103\uff0c\u6298\u5c04\u7387 1.3616\uff0c\u76f8\u5bf9\u5bc6\u5ea6 0.7893\u3002<br \/>\n\u5236\u5907\u65e0\u6c34\u4e59\u9187\u7684\u65b9\u6cd5\u6709\u5f88\u591a\uff0c\u6839\u636e\u5bf9\u65e0\u6c34\u4e59\u9187\u8d28\u91cf\u7684\u4e0d\u540c\u8981\u6c42\u9009\u62e9\u4e0d\u540c\u7684\u65b9\u6cd5\u3002<\/p>\n<p>\u5982\u679c\u9700\u8981 98%~99% \u4e59\u9187\uff0c\u53ef\u91c7\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<br \/>\n(1\uff09\u5229\u7528\u82ef\u3001\u6c34\u548c\u4e59\u9187\u5f62\u6210\u4f4e\u5171\u6cb8\u6df7\u5408\u7269\u7684\u6027\u8d28\uff0c\u5c06\u82ef\u52a0\u5165\u4e59\u9187\u4e2d\uff0c\u8fdb\u884c\u5206\u998f\uff0c\u572864.9\u2103\u65f6\u84b8\u51fa\u82ef\u3001\u6c34\u3001\u4e59\u9187\u4e09\u5143\u6052\u6cb8\u6df7\u5408\u7269\uff0c\u8fc7\u91cf\u7684\u82ef\u572868.3\u65f6\u4e0e\u4e59\u9187\u5f62\u6210\u4e8c\u5143\u6052\u6cb8\u6df7\u5408\u7269\u88ab\u84b8\u51fa\uff0c\u6700\u540e\u84b8\u51fa\u4e59\u9187\u3002\u5de5\u4e1a\u4e0a\u5927\u591a\u91c7\u7528\u8fd9\u79cd\u65b9\u6cd5\u3002<\/p>\n<p>(2\uff09\u7528\u751f\u77f3\u7070\u8131\u6c34\u3002\u5728 100mL 95% \u4e59\u9187\u4e2d\u52a0\u5165\u65b0\u9c9c\u5757\u72b6\u751f\u77f3\u7070 20g\uff0c\u56de\u6d41 3~5h \u540e\u84b8\u998f\u3002<\/p>\n<p>\u5982\u679c\u60a8\u9700\u8981\u591a\u4e8e 99% \u7684\u4e59\u9187\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<br \/>\n(1) \u5728 100mL 99% \u4e59\u9187\u4e2d\uff0c\u52a0\u5165 7g \u91d1\u5c5e\u94a0\uff0c\u5f85\u53cd\u5e94\u5b8c\u5168\u540e\uff0c\u518d\u52a0\u5165 27.5g \u90bb\u82ef\u4e8c\u7532\u9178\u4e8c\u4e59\u916f\u6216 25g \u8349\u9178\u4e8c\u4e59\u916f\uff0c\u56de\u6d41 2~3h \u540e\u84b8\u998f\u3002<\/p>\n<p>\u867d\u7136\u91d1\u5c5e\u94a0\u80fd\u4e0e\u4e59\u9187\u4e2d\u7684\u6c34\u4f5c\u7528\u751f\u6210\u6c22\u6c14\u548c\u6c22\u6c27\u5316\u94a0\uff0c\u4f46\u751f\u6210\u7684\u6c22\u6c27\u5316\u94a0\u4e0e\u4e59\u9187\u6709\u5e73\u8861\u53cd\u5e94\uff0c\u56e0\u6b64\u5355\u72ec\u4f7f\u7528\u91d1\u5c5e\u94a0\u4e0d\u80fd\u5b8c\u5168\u9664\u53bb\u4e59\u9187\u4e2d\u7684\u6c34\uff0c\u5fc5\u987b\u52a0\u5165\u8fc7\u91cf\u7684\u9ad8\u6cb8\u70b9\u916f\u7c7b\uff0c\u5982\u90bb\u82ef\u4e8c\u7532\u9178\u4e8c\u4e59\u916f\uff0c\u5e76\u5bf9\u751f\u6210\u7684\u6c22\u6c27\u5316\u94a0\u8fdb\u884c\u6291\u5236\uff0c\u4ece\u800c\u8fbe\u5230\u8fdb\u4e00\u6b65\u8131\u6c34\u7684\u76ee\u7684\u3002<\/p>\n<p>(2\uff09\u5728 60mL 99% \u4e59\u9187\u4e2d\uff0c\u52a0\u5165 5g \u9541\u548c 0.5g \u7898\uff0c\u5f85\u9541\u6eb6\u89e3\u751f\u6210\u9187\u9541\u540e\uff0c\u518d\u52a0\u5165 900mL 99% \u4e59\u9187\uff0c\u56de\u6d41 5h \u540e\u84b8\u998f\uff0c\u53ef\u5f97 99.9% \u4e59\u9187\u3002<\/p>\n<p>\u56e0\u4e3a\u4e59\u9187\u6709\u5f88\u5f3a\u7684\u5438\u6e7f\u6027\uff0c\u6240\u4ee5\u5728\u64cd\u4f5c\u65f6\uff0c\u52a8\u4f5c\u8981\u8fc5\u901f\uff0c\u5c3d\u91cf\u51cf\u5c11\u8f6c\u79fb\u6b21\u6570\uff0c\u4ee5\u9632\u6b62\u7a7a\u6c14\u4e2d\u7684\u6c34\u5206\u8fdb\u5165\uff0c\u540c\u65f6\u6240\u7528\u4eea\u5668\u5fc5\u987b\u4e8b\u5148\u5e72\u71e5\u597d\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u6ce8\u610f\uff1a\u4f7f\u7528\u91d1\u5c5e\u5316\u5408\u7269\u4f5c\u4e3a\u51c0\u5316\u5242\u65f6\uff0c\u84b8\u998f\u70e7\u74f6\u4e2d\u7684\u6eb6\u5242\u5728\u84b8\u998f\u8fc7\u7a0b\u4e2d\u5e94\u81f3\u5c11\u4fdd\u6301\u56db\u5206\u4e4b\u4e00\u7684\u4f53\u79ef\uff0c\u5207\u52ff\u8ba9\u5176\u84b8\u53d1\u81f3\u5e72\uff0c\u5426\u5219\u53ef\u80fd\u4f1a\u6709\u5371\u9669\u3002<\/p>\n<p><!-- lc-commercial-start --><\/p>\n<h2>A practical checklist for coating formulation decisions<\/h2>\n<p>In conventional coating work, technical buyers usually move fastest when they define the film-performance target first and then review rheology, substrate compatibility, additives, and long-term durability as one system instead of isolated tweaks.<\/p>\n<ul>\n<li><strong>Start from the application scenario:<\/strong> furniture, powder coating, industrial paint, and waterborne systems often reward different formulation priorities.<\/li>\n<li><strong>Check surface quality and process stability together:<\/strong> leveling, wetting, foam control, and drying often interact strongly.<\/li>\n<li><strong>Review the film after full cure or drying:<\/strong> adhesion, hardness, weatherability, and color stability usually decide the commercial result.<\/li>\n<li><strong>Use targeted additive screening:<\/strong> wetting, leveling, defoaming, and wear-resistance additives work best when the defect is clearly defined.<\/li>\n<\/ul>\n<h3>\u63a8\u8350\u7684\u4ea7\u54c1\u53c2\u8003<\/h3>\n<ul>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/zh\/product\/photoinitiator-819-irgacure-819-cas-162881-26-7\/\">CHLUMINIT 819<\/a>:<\/strong> \u5f53\u914d\u65b9\u9700\u8981\u66f4\u5f3a\u7684\u5438\u6536\u548c\u66f4\u6df1\u5c42\u7684\u56fa\u5316\u652f\u6301\u65f6\u5f88\u6709\u7528\u3002<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/zh\/product\/cas-270586-78-2\/\">CHLUMINIT TMO<\/a>:<\/strong> A valuable comparison point when lower yellowing or TPO-replacement discussions matter.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/zh\/product\/acetyl-tributyl-citrate-cas-77-90-7\/\">CHLUMIFLEX ATBC<\/a>:<\/strong> A practical non-phthalate plasticizer reference for application and compliance screens.<\/li>\n<li><strong><a href=\"https:\/\/longchangchemical.com\/zh\/product\/dotp-cas-6422-86-2\/\">CHLUMIFLEX DOTP<\/a>:<\/strong> A standard terephthalate-plasticizer benchmark in flexible-plastics applications.<\/li>\n<\/ul>\n<h3>\u4e70\u5bb6\u548c\u914d\u65b9\u5e08\u7684\u5e38\u89c1\u95ee\u9898\u89e3\u7b54<\/h3>\n<p><strong>Why can a coating with good initial appearance still fail later?<\/strong><br \/>Because many failures show up only after full cure, storage, or service exposure, when adhesion, flexibility, or weatherability becomes the limiting factor.<\/p>\n<p><strong>Should coating additives be chosen one by one outside the full formula?<\/strong><br \/>It is usually safer to screen them inside the real formula because resin choice, pigments, and the rest of the additive package can change the result.<\/p>\n<p><!-- lc-commercial-end --><\/p>","protected":false},"excerpt":{"rendered":"<p>Commonly used reagents from chemical suppliers are only sufficient for general chemical reactions. In order to ensure the smooth running of some organic synthesis reactions, further purification of the reagents<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[106],"tags":[],"class_list":["post-7274","post","type-post","status-publish","format-standard","hentry","category-laboratory-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.3.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Purification of common solvents - Longchang Chemical<\/title>\n<meta name=\"description\" content=\"Commonly used reagents from chemical suppliers are only sufficient for general chemical reactions. 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