Inhibitor PhysicalsColorless or slight yellow clarity liquid, melting point -16.5°C, boiling point 123 °C,(3.866KPa), opposite density (d420) 1.2-1.32, refractive index 1.5030, well mixed with water, alcohol and aether, with highly causticity. Specification:ItemsGrade AppearanceABCColorless or slight yellowColorless or slight..