Undiluted acetic acid is sold as “glacial acetic acid”. What is the origin of this nomenclature?
Ah there we go. Checked the wiki but apparently the browser search function does not look inside the different sections of an article, which are minimized when the mobile version is displayed.
In my university chem lab it was a rule of thumb that when the glacial acetic acid froze we could nag them to put the heating on.