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描述:二甲苯 Xylol,Dimethyl benzene C8H10 PROPERTY | UNIT | VALUE | TESTMETHOD | Appearance | | Clourless liquid | VISUELLE | Relative density @ 20∕4℃ | | 0.866min | ASTM D4052 | 相对密度 | | 0.865max | ASTM D4052 | Distillation Range @ 760mmHg | | | | I B P (初沸点) | deg C | 138min | ASTM D86 | D P(终沸点) | deg C | 140max | ASTM D86 | Flash Point(Close cup)闪点 | deg C | 24 | ASTM D56 | Colour (hazen)色度 | Pt-Co scale | 20max | ASTM D1209 | Acidity酸度 | % mass | none | ASTM D1613 |
GENERAL APPLICATIONS Xylene is a good solvent for fats,waxs,pitches and many natural & synthetic resins。Xylene is also used as a solvent and diluent in paints,enamels,lacquers and varnishes。It is also employed in printing inks and adhesives,and is a most important solvent for insecticide formulations。It is also used as an intermediate for chemical synthesis。 二甲苯用途脂肪、蜡、沥青及各天然与人工合成树脂之溶剂。也为油漆、清漆及亮漆制造用之溶剂和稀释剂。也用于油墨及粘合剂制造业,也是杀虫药制剂最常用之溶剂。也是化工合成用之中间体。 |
二甲苯(dimethylbenzene)为无色透明液体;是苯环上两个氢被甲基取代的产物,存在邻、间、对三种异构体,在工业上,二甲苯即指上述异构体的混合物。二甲苯具特臭、易燃,与乙醇、氯仿或乙醚能任意混合,在水中不溶。沸点为137~140℃。二甲苯的污染主要来自于合成纤维、塑料、燃料、橡胶,各种涂料的添加剂以及各种胶粘剂、防水材料中,还可来自燃料和烟叶的燃烧气。