Hydrofluoric acid is aqueous solution of hydrogen fluoride. It's colourless and transparent, having strong and irritative smell and causticity. It can pickling such materials containing SiO 2 as glass quickly.

	Excellent-grade	First-grade products			Second-grade products			Qualified products
	F-40	F-40	F-55	F-60	F-40	F-55	F-60
HF% Min	40.0	40.0	55.0	60.0	40.0	55.0	60.0	30.0-65.0
H2SiF6 % Max	0.02	0.2	0.4	0.5	0.6	1.0	1.0	5.0
H2SO % Max	0.02	0.05	0.08	0.1	0.6	0.8	1.0	-
Fe% Max	0.005	0.01	-	-	-	-	-	-

[Usage] mainly used in the production of salts fluoride to engrave and erode the glass, clean metal, treat surface, and so on.
[Packing] with polyethylene plastic drum (10kg/25kg/200kg each drum); iron drum with the plastics inside (200kg each drum).
[Note] the content of HF of the products is 35-70%. The production will be organized according to the requirements of the clients.