Density 0.810-0.820
Refractive index nD 1.380-1.395
Viscosity, Pa.s 0.005-0.020
Basicity 162.0-198.0
UV absorbance≤0.20
Drying loss, %≤4.0
Residue on ignition, %≤0.2
Heavy metal, %≤10ppm
As, %≤0.0002
Appearance: Offwhite or light yellow solid strips. Slight odor.
Solubility: Insoluble in water; soluble in polar organic solvents.