nimbus8
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Registered: 14-4-2013
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Glassware etching
Hey everyone.
Does anyone have any information on how bases and acids remove the top layer of glassware?
Is it true that when the top layer is removed chemicals begin to bond to the glassware easier and are even harder to get out, if so what type of
reaction from the bases and acids cause this and how does it change the glassware's chemistry to bond more easily?
And finally as an alternative to strong base and acid cleaning, are strong oxidative agents safe in this respect, do they react with the glassware in
any way like strong bases or acids do?
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Chemistrium
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Registered: 9-4-2013
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Well i'm pretty sure molten sodium hydroxide reacts with glass to make sodium silicate (the same with other strong bases to create their corresponding
silicate). The only acid I've heard of which reacts with glass is hydrofluoric acid.
Quote: Originally posted by nimbus8  | | Is it true that when the top layer is removed chemicals begin to bond to the glassware easier and are even harder to get out, if so what type of
reaction from the bases and acids cause this and how does it change the glassware's chemistry to bond more easily? |
I'm not sure it's true for chemicals to bond to the glass easier (it may become harder to clean...), but I know its make it easier for bacteria to
hide on the rougher surface.
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