borax pentahydrate

1.borax pentahydrate (99%) 2.the direct manufacture 3.lowest price 4.best quality 5.Na2B4O7 5H2O(99%)

Boric acid 99.6% Content of H3BO3%:99.6%min, B2O3:56.5% min, Water insoluble matter%: 0.01%max, Sulfate(as SO4)%:0.10%max, Chloride(as Cl)%:0.05%max, Fe%:0.002%max, Appearance:white crystal granular...