Hydrofluoric acid wani ruwa ne mara launi, mai gurɓataccen abu wanda shine maganin hydrogen fluoride a cikin ruwa. Tsarin sinadaransa shine HF, kuma yana daya daga cikin mafi karfi acid da aka sani. Hydrofluoric acid ana yawan amfani dashi a aikace-aikacen masana'antu, kamar gilashin etching da tsabtace ƙarfe, amma kuma yana da haɗari sosai don ɗaukarwa kuma yana iya haifar da ƙonewa mai tsanani da sauran matsalolin lafiya. Yana da mahimmanci a ɗauki matakan da suka dace yayin aiki tare da acid hydrofluoric, gami da yin amfani da suturar kariya da bin ƙa'idodin aminci.