this should contain all you need: Post 389646 (https://www.thevespiary.org/talk/index.php?topic=9366.msg38964600#msg38964600)
(Antoncho: "Toluenesulfonic acid - tips and tricks.", Methods Discourse)
> No serious chemist ever forgets boiling chips, not even if he is distilling water.
??? who the heck distills without magstirrer ???