Antioxidant TBHQ for edible oils

Cemical name: Tertiary butylhydroquinone (TBHQ);tert-butylhydroquinone
Legal serial number: INS 319;
CAS No.: 1948-33-0
Standard: GB12493--90(04.007)

Chemical configuration:

Molecular formula:C10H14O2
molecular weight:166.22

properties:white or light grey crystal or crystal powder. Extremely light special odor. Dissolve in ethanol, acetic acid, ethyle ester, isopropyl alcohol, aether, vegetable oil and lard.
Almost impossible to dissolve in water(25℃,<1%;95℃,5%).
Boiling point 300℃,
melting point 126.5~128.5℃.
Have the function of anti-deterioration to a majority of oils, esp. vegetable oil. No coloring up with iron and copper. Turn pink with the existence of alkali.