询磷酸三钠98%出口。规格如下：Tribasic sodium phosphate Technical Data #DescriptionNorm1AppearanceScales or crystals of white or light yellow color capable to pressing down2Main maintenance, not less98%3Mass fraction of general P2O5, not less18.5%4Sulfate SO4, not more0.5%5Oxide of sodium Na2O, not more15-19%6Chloride, as chlorine Cl, not more1-1.5%7pH of 1% a water solution11.5-12.5%8Mass fraction of non-soluble fraction in water0.03%