potassium bifluoride

potassium bifluoride

[pə′tas·ē·əm bī′flu̇r‚īd]
(inorganic chemistry)
KHF2 Colorless, corrosive, poisonous crystals; soluble in water and dilute alcohol; used to etch glass and as a metallurgy flux. Also known as Fremy's salt; potassium acid fluoride.