P-Hydroquinone, known as hydroquinone or hydroquinone in Chinese, is an important organic compound with the chemical formula C6H6O2 and a white crystalline form. This compound has a wide range of applications in the chemical industry, the pharmaceutical field, and the photographic industry. In terms of uses, P-Hydroquinone is mainly used in the production of black and white developers, anthraquinone dyes, azo dyes and so on. In the rubber industry, it is often used as an antioxidant, which helps to extend the service life of rubber products.
اتصل الآن
Hydroquinone Uses:In medicine, hydroquinone is mainly used in the treatment of pigmented skin diseases, such as chloasma and freckles, etc.
اتصل الآن
In the United States and China, the maximum allowable dosage of TBHQ in food is 200ppm,At present, the production of tert butyl hydroquinone both domestically and internationally adopts the tert butylation method of hydroquinone, as shown in Figure 2. According to different classifications of alkylation reagents.Both domestic and foreign patent literature have reported this process, such as using toluene or xylene as solvents, the selectivity and yield of this reaction are relatively ideal.
اتصل الآن
Product ParametersTert butyl hydroquinone (TBHQ), also known as tert butyl hydroquinone, is a white crystalline powder with a temperature range of 126.5-128.5 ℃ and a temperature range of 300 ℃.
اتصل الآن
Eastman in the United States, Camlin in India, and others. At present, the production of tert butyl hydroquinone both domestically and internationally adopts the tert butylation method of hydroquinone, as shown in Figure 2. According to different classifications of alkylation reagents, it can be divided into tert butyl method, isobutylene method, and MTBE method.
اتصل الآن
TBHQ (Tertiary Butylhydroquinone) is an oil-soluble antioxidant with excellent antioxidant properties.Broiler feed antioxidant TBHQ can prevent or delay oxidative deterioration of fats and oils in food products, and effectively prolong the shelf life of food products. Its antioxidant capacity is superior to other common antioxidants such as propyl gallate (PG), 2,6-di-tert-butyl-p-cresol (BHT) and tert-butyl-p-hydroxyanisole (BHA).
اتصل الآن
Tert-butylhydroquinone, white crystalline powder its point is 126.5-128.5 ℃ point of 300 ℃ CAS No.: 1948-33-0, easily soluble in alcohols and waking up, most of the fats and oils, especially for vegetable oils antioxidant function is the most effective.
اتصل الآن
However, the active chemical properties of oils and fats are prone to deterioration due to oxidation and other factors. Oil antioxidants are a type of substance that can prevent or delay the deterioration of oils or fatty foods, extend their shelf life, and tert butyl hydroquinone (TBHQ) is a high-quality edible oil antioxidant.At present, the production of tert butyl hydroquinone both domestically and internationally adopts the tert butylation method of hydroquinone, as shown in Figure 2.
اتصل الآن
TBHQ may volatilize faster than BHT. Therefore, the application of microcapsule technology can solve this problem under high temperature conditions. Using natural antioxidant tea polyphenols, BHA, BHT, and synergistic agent citric acid as the core material, and food grade natural substance p-cyclodextrin as the wall material, microcapsule antioxidant was prepared using microcapsule technology.Water soluble antioxidants are soluble in water and mainly used for food oxidation and discoloration.
اتصل الآن
Tert butyl hydroquinone (TBHQ), also known as tert butyl hydroquinone, is a white crystalline powder with a melting point of 126.5-128.5 ℃ and a boiling point of 300 ℃. Its CAS number is 1948-33-0, and it is easily soluble in ethanol and ether. It is the most effective antioxidant for most oils, especially vegetable oils. T-butylhydroquinone, abbreviated as TBHQ, has a molecular formula of Cl0H1402 and a molecular weight of 166.22. [1] It is a white to light gray crystalline or crystalline powder with a very slight special odor.
اتصل الآن
The US Food and Drug Administration (FDA) allows TBHQ to be used alone or in combination (with BHA or BHT) for oil or fatty foods, including volatile essential oils, with a maximum allowable dosage of 200PPM. It can also be used in non-alcoholic beverages, margarine, and mixed nuts.TBHQ, also known as tert butyl hydroquinone, is a phenolic oil soluble antioxidant. TBHQ has high efficiency and stability, which can extend the shelf life of foods rich in oil and improve food safety.
اتصل الآن
TBHQ, also known as tert butyl hydroquinone, is a phenolic oil soluble antioxidant. TBHQ has high efficiency and stability.The US Food and Drug Administration (FDA) allows TBHQ to be used alone or in combination (with BHA or BHT) for oil or fatty foods, including volatile essential oils, with a maximum allowable dosage of 200PPM. The national hygiene standard number is GB276090.4007.The safety of TBHQ has been comprehensively reported, and its acute toxicity belongs to low toxicity level.
اتصل الآن
Physical and chemical properties:Density: 1.328g/cm3Melting point: 172-175℃Boiling point: 286℃Flash point: 141.6Refractive index: 1.612Critical temperature: 549.9℃Critical pressure: 7.45MPaIgnition temperature: 516℃Explosion limit (V/V): 15.3%Lower explosion limit (V/V): 1.6 %Property: white needle crystal, discolored by light, with special odorSolubility: soluble in hot water, soluble in cold water, ethanol and ether, slightly soluble in benzene Packaging, storage, transportation:1: 25KG (net weight) kraft paper laminated bag, lined with double polyethylene plastic bag.2: Store in a cool
اتصل الآن
Fully dissolve and evenly disperse TBHQ in oil, otherwise it will affect the antioxidant effect.Some organic acids and their derivatives can enhance the activity of TBHQ. It is better to mix it with 0010.02% citric acid.Oil antioxidants are a type of substance that can prevent or delay the deterioration of oils or fatty foods, extend their shelf life, and tert butyl hydroquinone (TBHQ) is a high-quality edible oil antioxidant.It is the most effective antioxidant for most oils, especially vegetable oils.
اتصل الآن
Possible reaction pathways of 2,5-di-tert-butyl-hydroquinone (2,5-DTBHQ).Valgimigli et al. proposed a mechanism wherein semiquinone (2) reacts with molecular oxygen to produce 2,5-di-tert-butyl-1,4-benzoquinone (2,5-DTBBQ) and hydroperoxyl radical (HOO∙). The semiquinone (2) terminates a second propagation chain via either hydrogen abstraction (Reaction II) or addition reaction (Reaction IV) and these reaction pathways play a very critical role in the inhibition process.
اتصل الآن
Product Parameters2-tert-butylhydroquinone as a food additive, TBHQ has been used in the United States and other more than 20 countries, China in 1992 was approved for use in oil and fat-containing foods, thousands of fish products, biscuits, quick-cooking noodles, canned fat-containing foods, cured meat products and so on.
اتصل الآن
Product ParametersTert-butylhydroquinone (TBHQ), also known as tert-butylhydroquinone, white crystalline powder with a point of 126.5-128.5 ℃ point of 300 ℃ CAS No.: 1948-33-0, easily soluble in alcohols and waking up to the majority of fats and oils, especially vegetable oils antioxidant function of the most effective.
اتصل الآن
Product Parameters:Tert-butylhydroquinone (TBHQ), also known as tert-butylhydroquinone, white crystalline powder with a point of 126.5-128.5 ℃ point of 300 ℃ CAS No.: 1948-33-0, easily soluble in alcohols and waking up to the majority of fats and oils, especially vegetable oils antioxidant function of the most effective.
اتصل الآن
1.Product ParametersMolecular formula: C10H14O2Molecular weight: 166.22CAS No.: 1948-33-02-Tertiary butyl dihydroquinone, also known as tert-butylhydroquinone, white crystalline powder with a point of 126.5-128.5 ℃ point of 300 ℃ CAS No.: 1948-33-0, easily soluble in alcohols and waking up to the majority of fats and oils, especially vegetable oils antioxidant function of the most effective.
اتصل الآن
The order of antioxidant activity in soybean oil is TBHQ>Vc>VE>catechins>BHT. Among them, TBHQ, VE, and BHT have good oil solubility and do not change color after heating, making them suitable for use as advanced soybean oil antioxidants. The antioxidant effect of BHT can only be displayed after a long time. Adding 20mg/kg to oil for short-term storage is better than adding 100mg/kg. Although Vc and catechins have strong antioxidant effects, they are difficult to dissolve in oil and have poor thermal stability.
اتصل الآن
Researchers have been committed to exploring efficient antioxidant technologies and developing safe products. The successful development and widespread use of antioxidants such as TBHQ have solved the problem of rancidity in oil-rich foods. TBHQ, BHA, BHT, PG, etc.
اتصل الآن
TBHQ can be used for edible oils, fried foods, dried fish products, biscuits, instant noodles, instant boiled rice, canned dried fruits, pickled meat products.This product does not affect the color and flavor of food, and is not used for coloring iron containing foods.The antioxidant effect of this product is very ideal, 5-7 times stronger than BHA, BHT, and PG.
اتصل الآن
Introduction of nature:TBHQ is almost insoluble in water (about 5‰), soluble in ethanol, acetic acid, ethanol, isopropyl alcohol, ether and vegetable oil, lard, etc., almost insoluble in water (25℃, <1%). Boiling point 295℃, melting point 126 -128.5℃. It has the effect of preventing the failure of most fats and oils, especially vegetable oils. It does not change color in contact with iron and copper, but can turn pink if alkali is present.
اتصل الآن
White or off-white crystalline powder; slight odor, non-toxic; main component content ≥98.5%; relative density 1.09; melting point 212-218℃; solubility (g/100g solvent, 25℃): ethanol 35.1, acetone 39.0, ethyl acetate 48.8, benzene 1.5, insoluble in gasoline, insoluble in water; colorless, non-polluting, easy to disperse, etc. Characteristicsf DTBHQ:Chemical name: 2,5-Di-tert-butylhydroquinone (2,5-di-tert-butylhydroquinone), abbreviation: DTBHQEnglish name: 2,5-Di-tert-butylhydroquinone (DTBHQ)Molecular formula: C14H22O2Molecular weight: 222.33Classification belongs to: Polyphenols CAS: 8
اتصل الآن