3 ms·
APh9 -a great class. Of course you can still buy HF chrome cleaner in a spray bottle! https://hpd.nlm.nih.gov/cgi-bin/household/brands?tbl=brands&id=22001046 ht
by kurthr 9y ago
APh9 -a great class.
Of course you can still buy HF chrome cleaner in a spray bottle!
https://hpd.nlm.nih.gov/cgi-bin/household/brands?tbl=brands&id=22001046 https://hpd.nlm.nih.gov/cgi-bin/household/brands?tbl=brands&...
It doesn't look as strong as the 2% solution PepBoys used to sell, though.
- abecedarius 9y agoLooks like they still have it! http://nanofab.caltech.edu/classes/aph9.html http://nanofab.caltech.edu/classes/aph9.html I'd forgotten the course name.
- s0rce 9y agoI think some rust removers also contain HF.
- zzazzdsa 9y agoYep, Whink brand rust remover is 4% HF. It's a somewhat useful source of hydrofluoric acid in a pinch. I recall a procedure for making uranium tetrafluoride from uranium trioxide (which in turn was extracted from uranium ore) using that brand of rust remover as the acidic fluoride source.