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By certification 
Appearance（25℃） Colorless viscous transparent liquid
Purity ≥99.0%
Phenol content ≤0.1%
Color(APHA) ≤50
Specific gravity（20℃） 1.10~1.12
Refractive index（20℃） 1.536~1.540
As ≤0.0003%
Pb ≤0.001%
Solubility Mixed soluble in ethanol, acetone and glycerin; Slightly soluble in water, olive oil
