Tert Butylhydroquinone Antioxidant (T.B.H.Q)

Tert Butylhydroquinone Antioxidant (T.B.H.Q)


Tert Butylhydroquinone Antioxidant (TBHQ) is a highly effective preservative for unsaturated vegetable oils and many edible animal fats. Tert Butylhydroquinone Antioxidant does not cause discoloration even in the presence of iron, and does not change flavor or odor of the material to which it is added.

Tert Butylhydroquinone Antioxidant can be combined with other preservatives such as Butylated Hydroxyanisole Antioxidant (BHA). As food additive, its E number is E319, Where it is used as a preservative. Tert Butylhydroquinone Antioxidant is added to a wide range of foods, with highest limit (1000mg/kg) permitted for frozen fish and products. Its primary advantage is enhancing storage life.

Tert Butylhydroquinone Antioxidant is used industrially as a stabilizer to inhibit autopolymerization of organic peroxides. Inperfunery, it is used as a fixative to lower the evaporation rate and improve stability. Tert Butylhydroquinone Antioxidant is also added to varnishes, lacquers, resins and oil field additives.

Certificate of Analysis of Tert Butylhydroquinone Antioxidant
Specification Result
Appearance White to light tan Crystalline Powder White Crystalline Powder
Odour Faint Faint
Assay 99% Min 99.89%
Melting Point 126.5 - 128.5°C 128°C
Heavy Metals(as pb) 10 ppm Max. < 10 ppm
Arsenic (as AS) 3ppm Max. < 3 ppm
Toluene 25 ppm Max. Passes
Di Tert. Butyl Hydroquinone 0.2% Max. 0.070 %
Hydroquinone Contents 0.1% Max. 0.050%
Tert. Butyl p-benzoquinonee 0.2% Max. Nil
Ultraviolet Absorbance
(Polynuclear Hydrocarbon)
Passes Test Passes

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