tert-Butylhydroquinone

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tert-Butylhydroquinone

tert-Butylhydroquinone

Antioxidants, Alcohols, TBHQ, Tertiary Butyl Hydroquinone (TBHQ) is an aromatic organic compound. Tertiary Butyl Hydroquinone (TBHQ) has many applications in various industries.

CAS Number #1948-33-0
Synonyms 2-(1,1-Dimethylethyl)-1,4-benzenediol, TBHQ
Molecular Formula C10H14O2

Appearance White Crystalline Powder Characteristic Odor
Assay (ASC10H14O2) 99.0%
TERT. BUTYL P- BENZOQUINONE Max. 0.2%
HYDROQUINONE Max. 0.1%
2,5 DI-TERT. BUTYL HYDROQUINONE Max.0.2%
Toluene 0.0025%
Heavy Metals (as PB) Max. 2 PPM
Arsenic Max. 3 ppm
Melting Point 126.5 °C to 128.5 °C
UV Absorbance passes the test (poly nuclear hydrocarbons)
Moisture 0.5% Max
Molecular Weight 166.22 g/mol
Odour Very slight aromatic odor
Boiling Point 563 °F at 760 mm Hg / 273.0°C
Flash Point 340 °F / 171 °C
Solubility less than 1 mg/mL at 66° F
Solubility in Water Practically insoluble in water
Solubility Soluble in ethanol
Density 1.05
pH 4.56 at 25 °C of a 1% solution of 2-tert-butylhydroquinone

Tertiary Butyl Hydroquinone (TBHQ) is used as preservatives for editable animal fats and unsaturated vegetable oil. Tertiary Butyl Hydroquinone (TBHQ) is also used as stabilizer in many industries.

TBHQ is an established and excellent antioxidant for vegetable oils and fats. The use of TBHQ (about 0.02 wt%) stabilizes oils like Palm Oil, Soyabean Oil, Sunflower Oil, Peanut Oil, Coconut Oil, Mustard Oil, Rice Bran Oil, Corn Oil etc. TBHQ will ensure good storage properties for both the oil and the cooked product. TBHQ is also found to be very effective in protecting partially refined oils and crude oils during storage prior to refining. TBHQ can also be easily incorporated in Fats, Animal fats, Lemon oil, Lards, Butter fat, Orange oil etc. for stability. TBHQ in combination with BHA, BHT and Propyl Gallate can be used effectively for various other antioxidant applications.


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