... SO42- % ≤0.1SO42-ppm100Content of Cl- % ≤0.03Cl-ppm120 Properties: White powder crystal, specific weight 1.69-1.73, hardness 2 ... health taking orally. Uses: An important material for glass, enamel, ceramics, nonferrous mental, metallurgical industry, etc. It can be used as ... also a basic raw material for boride and high energy boron hyduide fuel. ISO borax decahydrate 95% 99.5 ...