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唯你一生颖

新虫 (小有名气)

[求助] 碳材料煅烧后洗涤时,为什么会有一层膜 已有2人参与

碳材料高温煅烧后在水中洗涤时,为什么会漂有一层膜
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thermo

木虫 (著名写手)

【答案】应助回帖

★ ★ ★ ★ ★ ★ ★ ★ ★ ★
唯你一生颖: 金币+10 2022-06-06 20:53:53
因为水的表面张力比较大,很小的碳颗粒没有被水完全浸润,漂浮上水面。解决办法:煅烧产物不要先和水见面,先与乙醇见面,超声搅拌一下,再加水,如果要酸洗的话,先加乙醇搅拌,再把稀酸加进去。
3楼2022-05-17 18:43:08
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13813921817

木虫之王 (文坛精英)

上善若水,利万物而不争


【答案】应助回帖

感谢参与,应助指数 +1
叫碳灰,就是碳的不完全燃烧造成。
2楼2022-05-12 16:16:01
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