potassium hydroxide 90% KOH:90%min K2CO3:0.5% max Cl: 0.005% max SO4:0.002% max

First/Second grade product

Total base content(As KOH) ≥ 95.0 / 90.0

Potassium content of ≤ 0.5 / 0.5

Chloride ≤ 0.005/ 0.005

Fe content ≤ 0.0005 / 0.0005

Sulfate content ≤ 0.005 / 0.005

Nitrate and nitrite content ≤ 0.0005 / 0.0005

Na content ≤ 0.8 / 0.8

PO4  content ≤ 0.005 / 0.005

Silicate content ≤ 0.01 / 0.01

Al content ≤ 0.002 / 0.002

Ca content ≤ 0.005 / 0.005

Ni content ≤ 0.0005 / 0.0005

Pb content ≤ 0.002 / 0.002

Note:  sodium content  can be controlled as the user’s required

potassium hydroxide