Advanced Materials for Electronics

Potassium Hydroxide (KOH) 45% Electronic Grade

Assay Parameter   Unit   Specification LM
Assay (KOH) % 45.0-46.5
Color (APHA) APHA 10
Appearance Test Pass
Density at 25 oC g/ml 1.45-1.47
Identification Test Pass
Insoluble Matter ppm Max 20
Potassium Carbonate (K2CO3) % Max 0.1
Ammonium Hydroxide Precipitate ppm Max 20
Chloride ppm Max 30
Nitrogen Compounds (as N) ppm Max 20
Phosphate (PO4) ppm Max 1
Sulfate (SO4) ppm Max 5
Aluminum (Al) ppm Max 2
Chromium (Cr) ppm Max 5
Copper (Cu) ppm Max 0.05
Heavy Metals (as Ag) ppm Max 3
Iron (Fe) ppm Max 1
Lead (Pb) ppm Max 2
Mercury (Hg) ppm Max 0.1
Nickel (Ni) ppm Max 1
Sodium (Na) ppm Max 100
Zinc (Zn) ppm Max 2

It is hereby certified that the above-mentioned product meets applicable testing, packaging, regulatory, and customer purchase order requirements. This includes, but is not limited to, chemical specifications and inspection of containers for packaging defects. The pertinent test and/or inspection records are on file.