Metal Materials for Handling Aqueous Hydrofluoric Acid

Electrochemical Impedance Spectroscopy of 6H-SiC in Aqueous Hydrofluoric Acid

Polarization and electrochemical impedance spectroscopy of p-type 6H-SiC electrodes in an aqueous hydrofluoric acid solution is performed during the formation of porous SiC. The polarization of p-type SiC permits the identification of the flatband voltage, a Tafel-like region, and a limiting current which is attributed to the onset of the electropolishing regime. For some of the potential range...

Hydrofluoric acid.

Photonic crystal aqueous metal cation sensing materials.

We developed a polymerized crystalline colloidal array photonic material that senses metal cations in water at low concentrations (PCCACS). Metal cations such as Cu2+, Co2+, Ni2+, and Zn2+ bind to 8-hydroxyquinoline groups covalently attached to the PCCACS. At low metal concentrations (<microM), the cations form bisliganded complexes with two 8-hydroxyquinolines that cross-link the hydrogel and...

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...