Appearance : Clear Liquid Content : alpha-PINENE 40 - 55% + beta-PINENE 40 - 55% + Others 5 - 10% Acidity : 0.5 % (Max) Water : 0.5 % (Max) Color (Alpha) : 35 (Max) Distillation Range : 155 â?? 185 °C Optical Rotation : -25° ~ -31° Specific Gravity : 0.860 - 0.875 Melting Point : -60 ~ -50°C