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257一氧化碳中毒

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碳酸钠,俗名苏打、纯碱、洗涤碱,化学式:na?co?,普通情况下为白se粉末,为强电解质。龙腾小说网ltxs520.com密度为2.532g/cm3,熔点为851c,易溶于水,具有盐的通xing。

存在于自然界(如盐水湖)的碳酸钠称为天然碱。这是目前秦国碳酸钠的主要来源。但是产量非常的有限。这也是目前玻璃,纺织,化学等相关产业无法快速发展的原因之一。

可以这么说,碳酸钠的发展现在已经有制约秦国化学发展的苗头了。

实验室制取碳酸钠,主要靠氢氧化钠和二氧化碳的反应。

吕布兰法最早在1791年,古人就开始用食盐、硫酸、煤、石灰石为原料生产碳酸钠,是为吕布兰法。此法原料利用不充分、劳动条件恶劣、产品质量不佳,逐渐为索尔维法代替。

索尔维法,1859年,比利时人索尔维,用食盐、氨水、二氧化碳为原料,于室温下从溶液中析出碳酸氢钠,将它加热,即分解为碳酸钠,人们将此方法称为索氏制碱法,此法一直沿用至今。

侯德榜法1943年中国人侯德榜留学海外归来,他结合中国内地缺盐的国情,对索尔维法进行改进,将纯碱和合成氨两大工业联合,同时生产碳酸钠和化肥氯化铵,大大地提高了食盐利用率,是为侯氏制碱法。

四种方法能够采用的只有后两种。索尔维哈和侯德榜法。但是两种需要另外一种化工品,氨水。

骆驼粪是沙漠中普遍使用的燃料,连神圣的宙斯也只好屈尊俯就。由于长期烧骆驼粪,使宙斯——阿摩庙宇的墙和天花板蒙上一层烟灰。这种烟灰里包含着一些象盐那样的白se晶体,不时散发出一阵阵刺鼻的气味。当地人把这种白se晶体称作nic(阿摩神之盐)。1774年,英国化学家普利斯特列单独收集了这种带有刺鼻气味的气体,对它进行研究,他发现这种气体可溶于水,并表现出碱xing,因而把它称为“碱气”。可是,这个名词没有为化学界所接受,最后,人们还是从这种气体的来源“阿摩神之盐”中,给它取了个名字“am-monia”(阿摩尼亚)。这就是我们今天称之为“氨’”的化合物。

尚文要想制取氨水,只能采用这种结晶体和氢氧化钙加热制取。想到难闻的气味。尚文的胃就觉得倒胃口。但还是要去做。不过之前也要做一个“防毒面具。”

而且这种结晶体只能从粪便中收集。估计有些人还不知道。硝石,在东方不算什么,但是在欧洲可是相当的频繁。这些欧洲发展化学的原因,但他们发现了火枪的威力之后,就急速的发展。但是硝石却是紧俏品。人们后来发现,人体,动物的排泄物中,含有硝,就大量的收集。甚至严格控制人的排泄物。这也算是对化学的一种贡献吧。

人类的智慧总是在一种物品缺乏之后,迅速的寻找另外一种方法去索取。

尚文需要的大量的活xing炭。同时还要人注意排泄物晒干之后形成的晶体。这需要时间。

一夜,尚文进进出出,花费了一夜是的时间,最后只做了几件家具。尚文迷迷糊糊的躺在刚做好的皮质沙发上随着了。

嬴玉睡的很舒服,一直睡到太阳高高升起。

嬴玉大大的伸展了一个懒腰,觉得自己从来没有睡过这么舒服的床,自己来这里还真来对了。

嬴玉走出外屋,发现屋子中一下子多了几件很奇怪的东西。

“哎,哎。”嬴玉怀着好奇的心情叫醒尚文。

尚文熬了一夜,正是最困的时候,尚文闭着眼睛说道:“什么事情?”

“这都是什么呀,怎么这么奇怪。还有你坐的这个,这是什么呀?”嬴玉一连问道。

“沙发,其余全是家具。”尚文简单的回答道。

“沙发。沙发。什么是沙发?”嬴玉问道。

“一把高级的椅子。”尚文不耐的说道。

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