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7-hydroxynaphthalene-1,3-disulphonic acid

c.a.s no.:118-32-1
chemical structural formula:c10h8o7s2
molecular mass:380.48
chemical name:2-hydroxy-naphthalene-6,8-dipotassium disulfonate

appearance

gray-white powder

content

above 90%(elaboration product above 95%)

the content of r salt

below 1.0%

free acid(h2so4)

below 1.5%

water insoluble

below 0.1%

packaging

25kg woven bag



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