Molecular Formula: KOH Molecular Weight: 56.10 CAS No.: 1310-58-3 HS Code: 28152000 KOH Weight%: 90.0 min (first grade) 95.0 min (high grade) Carbonates (K2CO3) Weight %: 0.5 max (first grade) 0.5 max (high grade) Chloride as Cl, ppm: 50 max (first grade) 50 max (high grade) Iron (Fe+2 & Fe+3), ppm: 5 max (first grade) 5 max (high grade) Sulfate (as SO4), ppm: 50 max (first grade) 50 max (high grade) Nitrate and Nitrite (as N), ppm: 5 max (first grade ) 5 max (high grade)[...]