Synonyms: Tertiary Butylhydroquinone TBHQ,

CAS Number: 1948-33-0,

Molecular Weight: 166.22,

Chemical Formula: C10H14O2,

EINECS EC Number: 217-752-,

FEMA: ...

We offer BHA Butylated Hydroxyanisole, BHT Butylated Hydroxytoluene and TBHQ Tertiary Butylhydroquinone.

Specifications of TBHQ Tert Butylhydroquinone

It is a white crystalline Powder having characteristic Odor. It is soluble in alcohol and practically insoluble in water.
Assay (Titrimetric) C10H14O2: 99.0% of min
Arsenic: 3ppm
t-Butyl –p-Benzo-Quinone (FTIR): 0.2% max
2,5Ditert-Butyl Hydroquinone (GC): 0.2% max
Heavy Metal (as Pb): 2ppm max
Hydroquinone (GC): 0.1% max
Melting Point: 126.5C & 128.5C
Phenyl methane Content: 0.0025% max
UV-Absorbance (Polynuclear Hydrocarbon):
280-289nm-net abs.Max.0.15
290-299nm-net abs.Max.0.12
300-359nm-net abs.Max.0.08
360-400nm-net abs.Max.0.02.

Tert Butylhydroquinone (TBHQ, tertiary butylhydroquinone or tertiary butyl hydro quinone) is a highly effective antioxidant. Tertiary Butyl Hydroquinone(TBHQ) is a Synthetic food grade antioxidant, that is used to stabalize foods, fats and vegetable oils against oxidative deterioration and thus extending their storage life and hence it is used as a preservative. It 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. It can be combined with other preservatives such as butylated hydroxyanisole (BHA). As a food additive, its E number is E319. It is added to a wide range of foods, with the highest limit (1000 mg/kg) permitted for frozen fish and fish products.

TBHQ tert-Butylhydroquinone; Mono-tert-butylhydroquinone FCC Food Grade

C10H14O2 --- Formula weight 166.22--- INS: 319 --- CAS: 1948-33-0

TBHQ occurs as a white, crystalline solid. It is soluble in alcohol and in ether, but it is practically insoluble in water.
Function: Antioxidant.

Identification: Dissolve a few milligrams of sample in 1 mL of methanol, and add a few drops of a 25% solution of dimethylamine in water. A pink to red color appears.
Assay: Not less than 99.0% of C10H14O2.
tert-Butyl-p-benzoquinone: Not more than 0.2%.
2,5-Di-tert-butylhydroquinone: Not more than 0.2%.
Hydroquinone: Not more than 0.1%.
Lead: Not more than 2 mg/kg.
Melting Range: Between 126.5° and 128.5°.
Phenyl methane: Not more than 0.0025%.
Ultraviolet Absorbance: (polynuclear hydrocarbons) Passes test.