Sorbitol 70% Liquid GradeMedical GradeDaily Chemical GradeFood GradeAppearanceColorless, syrupy liquidDry substance %≥70≥70≥70Refractive index(20°C)≥1.4575≥1.4575≥1.4575Specific gravity(20°C)g/ml≥1.290≥1.290≥1.290Sorbitol %71-83()≥64.0Total sugars%≤0.306.0-10.0-Nickel mg/kg≤1.0≤1.0≤1.0Heavy metals mg/kg≤1.0≤1.0≤1.0