天气预报15天查询> 其他> 如何把稀硝酸做成发烟硝酸

如何把稀硝酸做成发烟硝酸

更新时间: 2020-09-24 00:00:00     

不能直接由稀硝酸通过蒸馏方法制得浓硝酸,而应该首先将稀硝酸脱水,制成超共沸酸,即浓度超过共沸点时的硝酸浓度,经蒸馏后才能制得浓硝酸。硝酸是五价氮的含氧酸,纯硝酸是无色液体,相对密度1、5027,一般工业品带微黄色,含硝酸百分之八十六至百分之九十七点五以上的浓硝酸又称发烟硝酸,它是溶有二氧化氮的红褐色液体,在空气中猛烈发烟并吸收水分,硝酸是强氧化剂,有强腐蚀性,在生产,使用和运输中要注意安全,与硫酸不同,硝酸与水会形成共沸混合物。

关键词: 如何 硝酸 做成

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-2649789/ | 耗时:0.1084 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=2649789 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2649789 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2649789 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1395055,1929932,233822,485890,1464041,165974,1112484,1320779,1130874,1069401,1687831,1075967,1974696,1114182,158968,1117850,1115263,1652701,1346249,1818313,1965264,406800,125904,1122751,543109,1095928,861540,987892,1098967,1341528) ORDER BY field (ArticleID,1395055,1929932,233822,485890,1464041,165974,1112484,1320779,1130874,1069401,1687831,1075967,1974696,1114182,158968,1117850,1115263,1652701,1346249,1818313,1965264,406800,125904,1122751,543109,1095928,861540,987892,1098967,1341528)