Ionization of hydrofluoric acid at 25 C

Ionization of Hydrofluoric Acid at 25 °C*

The io niza tion constant, K" fo r the reaction HF:;:2 H + + F was ca lc ul ated on the ba s is of pote ntio· metric measure me nt s in the cell Ag; AgCl , CI , F II La F"II Na F, HCI, 1-1 , 0 1 KCI(Sa td .), I-I g,Cl 2 ; Hg at 25 °C. A leas t squ a res procedure was a ppli ed to the ex pe rime nt a l da ta yie lding a bes t es tim a te fo r K, of 5 .85 X 10 4 with a s tanda rd e rror of 0.03 X...

Hydrofluoric acid.

Etching with Hydrofluoric Acid

Photoresists, wafers, plating solutions, etchants and solvents ... Phone: +49 731 977343 0 www.microchemicals.eu [email protected] Etching of SiO2, Quartz, and Glasses with HF Hydrofluoric acid is the only etchant which attacks amorphous SiO2, quartz, or glasses at significant high etch rate. However, HF is not only a strong corrosive, but also highly toxic towards higher concentrations: ...

Hydrofluoric Acid Exposure

A 21-year-old male was admitted to the emergency department with bleeding skin burns. He had been exposed to 70% hydrofluoric acid (HF) through his nitrile hand gloves during an etching glass procedure at work. He had painful lesions, which included bleeding skin abrasions due to seconddegree burns on the first and second fingertips on the right hand, and white spots on the left first finger, w...

Etching with Hydrofluoric Acid

Photoresists, developers, remover, adhesion promoters, etchants, and solvents ... Phone: +49 731 36080-409 www.microchemicals.eu e-Mail: [email protected] Etching of SiO2, Quartz, and Glasses with HF Hydrofluoric acid is the only etchant which attacks amorphous SiO2, quartz, or glasses at significant high etch rate. However, HF is not only a strong corrosive, but also highly toxic towards...