Maonekedwe: kristalo woyera kapena ufa woyera wa crystalline.
Zomwe zili:≥99.50%
Posungunuka: 184.0-187.0°C
Sulphate (SO42-): 0.02%
Chitsulo cholemera (monga Pb2+): 0.001%
Kuchepetsa potassium permanganate(ml): ≤2.0%
Zinthu zosasungunuka m'madzi: ≤0.02%