Discussion:
glassware water clear
(too old to reply)
Golden guy
2019-07-04 16:16:45 UTC
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Hi, after some tap water destillation the flask have a frosty-dirty finish,
maybe fluor or...? the contact with fingers is feel like something "negative"
adhered to the interior surface, very thin but something is here. I put a bit of
HCL after every disti. and the limes also adhered are removed but this frost
not.
I read a combination of HF + HNO3 return the glass to water clear. Is this ok?
what measures? 1 part of HF and 3 of HNO3? or a random mix work ok?

TIA
Libor Striz
1970-01-01 00:00:00 UTC
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HF would create rather dim surface, dissolving glass.
--
Poutnik ( the Wanderer )



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