Appearance

White crystal powder

Clarity and color

lower than No.1 turbidity liquid

Ml acid salt toleranceml

≤0.3%

Reducing sugars

Infinitesimal

Specification rotation

+137°-+145°

Melting point℃

164-169

Oxalate

≤200ppm

Chloride

≤30ppm

Sulphate

≤100ppm

Heavy metal

≤10ppm

Arsenic salt

≤1ppm

Sulfate ash

≤10ppm

loss on drying

≤0.3%

Residue ignition

≤0.1%