Physical and Chemical Properties: This product is the hydrotropic solution of above mentioned mixture. It?s appearance is light amber and smell is normal. Its relative density is (20/4°C)1.19, viscosity is (23°C)5.0mPa?s, freezing point-18~21.5°C,pH3.5~5.0. It is easily dissolved in water. The best pH condition for the usage of low-carbon alcohol and ethanediol is 4~8. As pH>8, its stability goes down. It could be stored for a year under normal temperature. Under 50°C,activity goes down slightly as it is stored for 6 months. Activity may go down greatly under high temperature. It could be compatible with various ionic emulsifiers and protein.