... .Specifications:Name of indexFood GradeMain contents ≥%98.0PH of 1% water solution9.0 -9.4Chloride, as Cl ≤%0.01Sulfate, as SO4 ... fire-prevention agent for fabric, timber, and paper, also as water softening agent for boiler, food additive, buffering agent ,solder, tanning agent ... warehouse instead of in the open air, kept away from water, moisture and sunlight during transport, handled with care, so ...