Quick Search
BUTYL HYDROXY TOLUENE = dibutylhydroxytoluene = Butylated hydroxytoluene = BHT
CAS Number: 128-37-0
EC Number: 204-881-4
MDL number: MFCD00011644
Formula: C15H24O
Butylated hydroxytoluene is a white crystalline solid.
Butylated Hydroxytoluene is an organic chemical composed of 4-methylphenol modified with tert-butyl groups at positions 2 and 6.
Butylated hydroxytoluene (BHT) inhibits autoxidation of unsaturated organic compounds.
2,6-di-tert-butyl-4-methylphenol is a member of the class of phenols that is 4-methylphenol substituted by tert-butyl groups at positions 2 and 6.
BUTYL HYDROXY TOLUENE derives from a phenol.
Butylated hydroxytoluene (BHT), also known as dibutylhydroxytoluene, is a lipophilic organic compound, chemically a derivative of phenol, that is useful for BUTYL HYDROXY TOLUENEs antioxidant properties.
Butylated hydroxytoluene has been used since 1947 as a common antioxidant in rubber and petroleum products and, more recently, in plastics.
BUTYL HYDROXY TOLUENE has been used since 1949 as an antioxidant in many fat-containing foods, in edible fats and oils and in cosmetics.
There is thus widespread human exposure to BUTYL HYDROXY TOLUENE.
BHT helps to prevent the formation of free radicals and oxidation.
BHT is a fat soluble antioxidant much like butylated hydroxyanisole (BHA) ,these phenol derivatives react with the free radicals (called free radical scavengers) and can slow the rate of autoxidation.
Oxygen reacts preferentially with BHT rather than oxidizing fats or oils, thereby protecting them from spoilage.
Butylated hydroxyanisole (BHA) and the related compound butylated hydroxytoluene (BHT) are phenolic compounds that are often added to foods to preserve fats and oils and keep them from becoming rancid.
BHT is a white to yellowish crystalline solid that prevents the oxidation of fats and oils, and helps to extend a product's shelf-life.
BUTYL HYDROXY TOLUENE is produced by the reaction of p-cresol with isobutylene and sulfuric acid.
The key function of BHT is that of a stabilizer.
Butylated hydroxytoluene is a man-made chemical commonly used as a preservative in processed foods.
Similar to the synthetic preservative butylated hydroxyanisole (BHA) with which BHT is often used, BHT is an antioxidant that is soluble in oils and animal fats.
Butylated Hydroxy Toluene is a non-staining, hindered phenolic antioxidant commonly used in a wide variety of applications including plastics, elastomers, petroleum products, and food.
Available in several physical forms, including crystalline.
Uses and Applications of BUTYL HYDROXY TOLUENE:
-Beverage ingredients
-Food ingredients
-Food preservatives
-Personal care ingredients
-Skin care ingredients
-Household product ingredient
-Industrial additive
-Personal care product/cosmetic ingredient
-Pesticide ingredient
-Plastic/rubber ingredient
-Medical/veterinary/research
-BHT is a lab-made chemical that is added to foods as a preservative.
-People also use BHT as medicine.
-BHT is used to treat genital herpes and acquired immunodeficiency syndrome (AIDS).
-Some people apply BHT directly to the skin for cold sores.
-BHT is a synthetic antioxidant used to improve the stability of cosmetic products,
-Pharmaceuticals
-Fat-soluble vitamins
-Biomaterials
-Petroleum products
-BHT serves as an anti-skinning agent in paints and inks.
-BHT is used to help preserve and stabilise the flavour, colour, freshness and nutritive value of foods and animal feed products.
-BHT is used between 0.0002 and 0.8% as an antioxidant in wide spectrum of dermally applied or sprayable cosmetic product types.
-Low levels of BHT are used in oral care products (maximal concentration in toothpaste 0.1% and in mouthwash products 0.001%).
-The presence of BHT in cosmetics may also be due to migration from packaging materials.
-Butylated hydroxytoluene (BHT) is an antioxidant added to plastics such as polyethylene and polypropylene films and polybags to prevent aging.
-BUTYL HYDROXY TOLUENE inhibits the degradation of fats and oils through BUTYL HYDROXY TOLUENEs antioxidant action and prevents rancidity.
-BHT is also a food additive, which is approved by the Food and Drug Administration, and is generally recognized as safe (GRAS).
-In cosmetic formulations, BHT is often used at concentrations ranging from 0.0001% to 0.5%.
-Processed foods most likely to contain BHT include chewing gum, active dry yeast, frozen convenience foods, prepared cereal products, prepared snacks, dried and processed meat, potato flakes, enriched rice products and shortening.
-BHT is also a chemical preservative used in animal feeds and drugs; therefore eatomg non-organic meats and dairy products may be another way in which exposure occurs.
-In addition to BUTYL HYDROXY TOLUENEs use in food preservation, BHA is also used in the manufacture of rubber, tires and petroleum and is an ingredient in some cosmetics.
-BHT is used in food, cosmetics and industrial fluids to prevent oxidation and free radical formation.
-BUTYL HYDROXY TOLUENE has a role as an antioxidant, a food additive, a ferroptosis inhibitor and a geroprotector.
-BHT is widely used to prevent free radical-mediated oxidation in fluids (e.g. fuels, oils) and other materials.
-BHT has also been postulated as an antiviral drug, but as of March 2020, use of BHT as a drug is not supported by the scientific literature and BHT has not been approved by any drug regulatory agency for use as an antiviral.
-BHT has outstanding solubility in fats and oils and provides carry through effectiveness in baked foods.
-Butylated hydroxytoluene, commonly known as BHT, is an organic compound that is used in the food, cosmetic, and pharmaceutical industry as an antioxidant.
-When used in food products, BUTYL HYDROXY TOLUENE delays oxidative rancidity of fats and oils, and prevents loss of activity of oil-soluble vitamins.
-BUTYL HYDROXY TOLUENE may be found in pharmaceutical gels, creams and liquid or gelatin capsules, tablets and other pharmaceutical dosage forms.
Synonyms of BUTYL HYDROXY TOLUENE:
2,6-Di-tert-butyl-4-methylphenol
4-methyl-2,6-ditertbutylphenol
Butylhydroxytoluene
2,6-Di-tert-butyl-p-cresol
2,6-Di-t-butyl-4-methylphenol
2,6-bis(1,1-dimethylethyl)-4-methylphenol
butylated hydroxytoluene
2,6-di-tert-butyl-p-cresol (DBPC)
3,5-di-tert-butyl-4-hydroxytoluene
1,3-di-tert-butyl-2-hydroxy-5-methyl benzene
di-tert-butyl-methylphenol
2,6-DITERTIARY-BUTYL-p-CRESOL;
4-METHYL-2,6-DITERTIARY-BUTYL-PHENOL
Physical and chemical properties of Butylated hydroxytoluene:
Appearance Form: Crystalline powder
Color: colorless
Odor: odorless
Odor Threshold: Not applicable
Molecular Weight: 220.35
Purity >99%
pH: No data available
Melting point/freezing point: Melting point/range: 69 - 73 °C - lit.
Initial boiling point and boiling range: 265 °C - lit
Flash point: No data available
Evaporation rate: No data available
Flammability (solid, gas): No data available
Upper/lower flammability or explosive limits: No data available
Vapor pressure: 0,00 hPa at 25 °C
Vapor density: No data available
Relative density: 1,03 g/cm3 at 20 °C -
Water solubility: 0,76 g/l at 20 °C
Partition coefficient n-octanol/water: log Pow: 5,1 - - Potential bioaccumulation
Autoignition temperature: > 400 °C - Regulation
Decomposition temperature: No data available
Viscosity: No data available
Explosive properties: No data available
Oxidizing properties: No data available
Typical range of impurities: ≤ 10 ppm heavy metals and ≤3 ppm arsenic
Solubility:
0.4 mg/L in water at 20 °C
0.6 mg/L in water at 25 °C
1.5 mg/L at 30 ºC and 6 mg/L at 60 ºC
Freely soluble in toluene
55.9 wt% in n-heptane at 29.5 °C
34 wt% in ethanol at 28.7 °C
31.1 wt% in 1-octanol at 29.5 °C
0.5% w/w in methanol, isopropanol, methyl ethyl ketone, acetone, cellosolve, benzene,
Most hydrocarbon solvents, ethanol, petroleum ether, liquid petrolatum (white oil), good solubility in linseed oil.
Insoluble in propylene glycol
Melting point: 70-71 °C
Boiling point: 265 °C at 760 mm Hg
Flash point: 127 °C
Vapour pressure: 0.01 mm Hg, 0.005 mm Hg at 25 °C, 0.39 Pa at 25 °C
Density: 0.899 (g/mL)
Viscosity:
3.47 centistokes at 0 °C
1.54 centistokes at 120 °C
pKa: 14, 12.2 at 20 °C
refractive index: 1.49 at 75 °C
topical polar surface area: 20.2 Å2
Homogeneity and Stability of Butylated hydroxytoluene:
-Stable, but light-sensitive.
-Incompatible with acid chlorides, acid anhydrides, brass, copper, copper alloys, steel, bases, oxidizing agents.
-Combustible.
First aid measures of Butylated hydroxytoluene:
-Description of first-aid measures:
If inhaled:
After inhalation: fresh air.
In case of skin contact:
In case of skin contact: Take off immediately all contaminated clothing.
Rinse skin with water/ shower.
In case of eye contact:
After eye contact: rinse out with plenty of water.
Remove contact lenses.
If swallowed:
After swallowing: make victim drink water (two glasses at most).
Consult doctor if feeling unwell.
-Indication of any immediate medical attention and special treatment needed: No data available
Exposure controls/personal protection of Butylated hydroxytoluene:
-Control parameters:
Ingredients with workplace control parameters
-Exposure controls:
Appropriate engineering controls:
Change contaminated clothing.
Wash hands after working with substance.
Personal protective equipment:
Eye/face protection:
Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
Safety glasses
Skin protection:
This recommendation applies only to the product stated in the safety data sheet, supplied by us and for the designated use.
When dissolving in or mixing with other substances and under conditions deviating from those stated in EN374 please contact the supplier.
Full contact
Material: Nitrile rubber
Minimum layer thickness: 0,11 mm
Break through time: 480 min
Splash contact
Material: Nitrile rubber
Minimum layer thickness: 0,11 mm
Break through time: 480 min
Respiratory protection:
Required when dusts are generated.
Our recommendations on filtering respiratory protection are based on the following standards: DIN EN 143, DIN 14387 and other accompanying standards relating to the used respiratory protection system.
Control of environmental exposure:
Do not let product enter drains.
Firefighting measures of BHT:
-Extinguishing media:
Suitable extinguishing media:
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
-Special hazards arising from the substance or mixture:
Carbon oxides
Combustible.
Development of hazardous combustion gases or vapours possible in the event of fire.
-Advice for firefighters:
In the event of fire, wear self-contained breathing apparatus.
-Further information:
Prevent fire extinguishing water from contaminating surface water or the ground water system.
Accidental release measures of BHT:
-Personal precautions, protective equipment and emergency procedures:
Advice for non-emergency personnel:
Avoid inhalation of dusts.
Evacuate the danger area, observe emergency procedures, consult an expert.
-Environmental precautions:
Do not let product enter drains.
-Methods and materials for containment and cleaning up:
Cover drains.
Collect, bind, and pump off spills.
Observe possible material restrictions.
Take up dry.
Dispose of properly.
Clean up affected area.
Avoid generation of dusts.
Stability and reactivity of Butylated hydroxytoluene:
-Reactivity:
Forms explosive mixtures with air on intense heating.
A range from approximately 15 Kelvin below the flash point is to be rated as critical.
The following applies in general to flammable organic substances and mixtures:
In correspondingly fine distribution, when whirled up a dust explosion potential may generally be assumed.
-Chemical stability:
Butylated hydroxytoluene is chemically stable under standard ambient conditions (room temperature).
Stable under recommended storage conditions.
-Possibility of hazardous reactions:
Violent reactions possible with:
Bases, Oxidizing agents, Strong acids, Acid chlorides, Acid anhydrides, Peroxides, sulfuric acid
-Conditions to avoid:
Strong heating.
No information available.
- Incompatible materials:
Acid chlorides
Acid anhydrides
Oxidizing agents
Bases
Brass
Copper
Mild steel
Copper compounds
-Hazardous decomposition products:
Hazardous decomposition products formed under fire conditions: Carbon oxides
Other decomposition products: No data available
Handling and storage of Butylated hydroxytoluene:
-Precautions for safe handling
-Conditions for safe storage, including any incompatibilities:
Tightly closed.
Dry.
-Specific end use(s):
No other specific uses are stipulated
Disposal Considerations of Butylated hydroxytoluene:
Storage and disposal must be in accordance with applicable local, state & federal disposal regulations.
Characterization and com- pliance with applicable laws are the responsibility solely of the generator.
