天气预报15天查询> 其他> 量取浓硫酸时为什么量筒不能冲洗

量取浓硫酸时为什么量筒不能冲洗

更新时间: 2020-06-29 00:00:00     

1、因为浓硫酸溶于水会放出大量的热,量筒又是玻璃的,所以局部过热容易使量筒炸裂;

2、另外倒水进去相当于把水加到浓硫酸里(参照稀释浓硫酸的错误做法以及后果),大量的热水(夹带着硫酸)会沸腾,飞溅出来,很危险。

关键词: 硫酸 为什么 量筒 冲洗

如有意见、反馈、侵权或投诉等情况,请联系:

电话:
邮箱:

我们将会在48小时内给与处理!

版权所有 Copyright ? 2009-2020 tianqiyubao3.com

页面:/news/view-1409287/ | 耗时:0.4281 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=1409287 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1409287 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1409287 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1068644,1087397,1063097,1129759,1092972,1371430,1106795,1125347,1056586,1115553,1077234,3337911,1076764,1073152,1068494,1053244,1115307,1127829,1081083,1082087,1094705,1095464,1047441,1086420,1066390,1076025,1093599,1071889,1116191,1075863) ORDER BY field (ArticleID,1068644,1087397,1063097,1129759,1092972,1371430,1106795,1125347,1056586,1115553,1077234,3337911,1076764,1073152,1068494,1053244,1115307,1127829,1081083,1082087,1094705,1095464,1047441,1086420,1066390,1076025,1093599,1071889,1116191,1075863)