• • • Acids

Ultra Pure Chemicals

Acids

• Acetic Acid Glacial
• Ammonium Fluoride 40%
• Hydrochloric Acid 37%
• Dilute Hydrofluoric 10%, 4.9%, 1%
• Hydrofluoric Acid

• Nitric Acid
• Nitric Acid 97% - 99% (Fuming)
• Phosphoric Acid 86%; 80%
• Sulphuric Acid 96%

Acetic Acid Glacial

Glacial Acetic Acid may be mixed with Hydrofluoric Acid and Nitric Acid to form Isotropic Etchants. Glacial Acetic Acid may also aid selectivity in aluminium etching when used as a diluent/wetting agent in Phosphoric Acid/ Nitric Acid mixtures. In addition, Glacial Acetic Acid may be combined with Ammonium Fluoride for the controlled etching of vapox Silicon Oxide.

Market Segments:

• Semiconductor
• MEMS & Nanotechnology

Functions:

Etchant