天气预报 > 其他 > 点燃验纯后的乙炔是什么现象
点燃验纯后的乙炔是什么现象
更新时间: 2020-10-26 00:00:00  

乙炔在氧气中燃烧,产生明亮火焰,并伴有浓烟的现象。乙炔,俗称风煤和电石气,是炔烃化合物系列中体积最小的一员,主要作工业用途,特别是烧焊金属方面。乙炔在室温下是一种无色、极易燃的气体。纯乙炔是无臭的,但工业用乙炔由于含有硫化氢、磷化氢等杂质,而有一股大蒜的气味。

关键词: 点燃 乙炔 什么 现象

点燃验纯后的乙炔是什么现象相关经验

天气预报

最新推荐

页面:/news/view-653615/ | 耗时:0.1068 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=653615 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=653615 LIMIT 0,1
select * from tbl_Articles_sphinx where id=653615 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1077370,1051599,1092410,1071041,1110732,1077104,1062826,1077695,1064833,1082117,1126262,1085318,1062712,990402,1070498,1091900,1076059,1088451,1131699,1074276,1091731,1049836,1069833,1079429,1086063,1078194,1088544,1109843,1083059,1080241) ORDER BY field (ArticleID,1077370,1051599,1092410,1071041,1110732,1077104,1062826,1077695,1064833,1082117,1126262,1085318,1062712,990402,1070498,1091900,1076059,1088451,1131699,1074276,1091731,1049836,1069833,1079429,1086063,1078194,1088544,1109843,1083059,1080241)