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第238章 印染业与酸碱指示剂(2 / 2)

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“诶,不说废话了,我找你来,是想请永明学会帮我两个忙,说完我就回去补觉了。”

李国助怕李俊臣追问炼药的事情,赶忙单刀直入地说道。

“什么事?小当家请说。”李俊臣莞尔一笑。

“第一件事,我想让你动员永明学会的人,帮我找一些遇到醋和碱会变色的东西。”

李国助马上说道,紧接着又补充了一句,

“最好是同一种物质遇到醋和碱都能变色,并且所变颜色并不相同。”

“遇到醋和碱会变色的东西可不少啊。”

李俊臣居然马上就胸有成竹地道。

“哦,此话当真!”

李国助顿时就眼中一亮,瞪大了眼睛,连那黑眼圈都仿佛发亮了。

“千真万确,比真金还真!”

李俊臣一本正经,斩钉截铁地道,

“在染色工艺中有时会用到碱和醋,由此引起燃料变色的情况也是时有发生的。”

“哦!快举几个例子!”

李国助顿时困意全消,搓着手,两眼放光地道。

李俊臣憋嘴一笑,不紧不慢地说道:

“比如用黄栌水染黄织物后,会用灰碱水漂洗,使织物呈现金黄色。”

“这就说明,黄栌遇到灰碱以后颜色会变得鲜亮。”

“灰碱是什么呀?”李国助连忙问道。

“就是草木灰。”

李俊臣随口答道,紧接着又补充了一句,

“不过处理黄栌水染的布,一般都是用麻杆灰。”

小主,这个章节后面还有哦,请点击下一页继续阅读,后面更精彩!“哦哦!”李国助释然地应了两声,急忙问道,“那用醋的例子呢?”

李俊臣想了想,突然略显兴奋地说道:

“还有红花,在遇到碱和醋时都会变色!”

“遇到碱时会变成黄色,遇到醋则会变得更加鲜艳。”

“那有没有本身是一种颜色,在遇到碱和醋时都会变成其他颜色的东西?”

李国助两眼放光地问道,怕李俊臣听不懂,又连忙举了个例子,

“比如类似本身是紫色,遇醋变红、遇碱变蓝这种的?”

李俊臣沉吟良久,终于摇头道:

“这我可就说不上了,我只是对纺织业的整个流程有比较全面的了解,”

“但具体到染色这道流程,我也就只是知道一点皮毛罢了。”

“这样吧,我可以动员公司所有的染匠帮你找到这样的东西。”

“好的,好的,那就有劳俊臣哥了。”

虽然没能立即得到答案,让李国助有点失望,但对李俊臣提出的这个方案,他还是很看好的。

想不到古代的天然染料里竟然有可能存在可以做酸碱指示剂的物质。

这不禁令人怀疑,波义尔发现花瓣指示剂真的是偶然吗?

难道就不能是他对染色行业有所了解吗?

毕竟欧洲近代科技史上的很多发明似乎都与偶然有关。

可世上哪里能有那么多的偶然呢?

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