... salt/industrial salt 99.6%min1.UsageIndustrial salt/rock salt can be used in cell ,oil refining,electroplate,ore dressing,precision ... casting,tanning,pharmaceutical industried,etc.2.Test Report 1.) ITEMPVD SALT/Rock salt ... 99.6%minHIGH PURITY SALT Sodium chloride≥ 99.6%≥ 99.9%Moisture≤0.1% ≤0.1% Water ...