Sodium Chlorite 31% Max 31.5% NaClO3 1.5% max 1.48% NaOH 1.5% max 1.48% Na2CO3 1%Max 0.98% NaCl 3% max 0.28% Na2SO4 1% max 0.99% NaNo3 0.1% Max 0.099% Arsenic 0.0003% max 0.003% Used in producing chlorine dioxide, or bleaching textiles, fiber, paper pulp, sand sugar, flour, wax, fruit etc, or certain metal surface treating, drink water and waste water purification etc.