Superiority:
Appearance White to slightly off-white crystalline powder
Assay(ion chromatography) >99.5%
Melting point 118-121℃
Water Content(K Fischer) <0.3%
Solution(20% in water) Clear and transparent
pH value 6±1℃(11.8% IN WATER)
UV-ABSORBANCE A(280nm) <0.2(35% IN WATER)
UV-ABSORBANCE A(300nm) <0.05(35% IN WATER)
Sulfated Ash 0.1% max
Ammonium content 0.1% max
Fe <1ppm
Ca <5ppm
Zn <5ppm
Details:
Appearance White to slightly off-white crystalline powder
Assay(ion chromatography) >99.5%
Melting point 118-121℃
Water Content(K Fischer) <0.3%
Solution(20% in water) Clear and transparent
pH value 6±1℃(11.8% IN WATER)
UV-ABSORBANCE A(280nm) <0.2(35% IN WATER)
UV-ABSORBANCE A(300nm) <0.05(35% IN WATER)
Sulfated Ash 0.1% max
Ammonium content 0.1% max
Fe <1ppm
Ca <5ppm
Zn <5ppm