... white hydrous powder 2 Purity % ≥ 99.0 3 Melting point 155~158 4 Moisture % 15 ± 1%, 20 ± 1% or 30 ± 1% 5Chroma 4.0 ... Advantage 1> Effective control of a broad spectrum microorganisms ... ,such as go moulding,zymolysis,go bad.So it is wide used in latex product,water-solubility resin ,(latex paint),crylic ...