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The unsaturated resin polymerization inhibitor MTBHQ (2-tert-butylhydroquinone) plays an important role in resin synthesis and other synthetic reactions. The following is a detailed analysis of its principle of action and effects:Effect Remarkable polymerization inhibition effect: MTBHQ is a kind of high efficient polymerization inhibitor for unsaturated resin. Under normal storage conditions, the general addition amount is only two ten-thousandths of the total amount of resin, and it can play a good effect of polymerization inhibition.
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Animal fats undergo a series of reactions such as the aggregation of fats, the production and transmission of free radicals, and so on at high temperatures. At the same time, animal fats lack natural antioxidants, so it is necessary to add effective antioxidants to maintain an appropriate shelf life. Chen Yongquan et al. measured the changes in peroxide value of samples added with different antioxidants in lard while studying the antioxidant properties of TBHQ.
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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.
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White to light gray crystal or crystalline powder, with unique odor, melting point 126.5~128.5℃, boiling 300℃, slightly soluble in water (25℃, <1%), easily soluble in ethanol (120%), acetone (190%), ethyl acetate (100%), insoluble in toluene, and soluble in animal and vegetable oils. MTBHQ is specially used as polymer inhibitor, heat and mild stabilizer and industrial antioxidant.
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How to use the productDirect methodHeat the grease to 60~70°C, add TBHQ according to the required proportion amount, stir vigorously for 10~15 minutes to dissolve it then stir continuously (no need to stir vigorously to avoid excessive air entry) for about 20 minutes to ensure the TBHQ is evenly distributed.Seed methodFirst dissolve TBHQ in a small amount of oil (or 95% alcohol solution), formulated as 5% ~ 10% of TBHQ oil (or alcohol solution), then directly or by the dosage added to the fat or oil to go and then stir, so that TBHQ uniform distribution.CaveatTBHQ should be fully soluble and e
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Product Parameters：Lard antioxidant TBHQ is white to light grey crystalline or crystalline powder, with very slight special smell, soluble in ethanol, acetic acid, ethyl alcohol, isopropyl alcohol, ethyl alcohol and oil, etc., a few are insoluble in water (25 ℃ <1%: 95 ℃ ﹤ 5%) TBHQ is a kind of oil-soluble antioxidant, which can prevent or prolong the oxidation of oil and fat deterioration in food.Product Applications：At present, the most commonly used antioxidants in fats and oils and their products are BHA, BHT, PG, TBHQ and tocopherol.
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The seed method first completely dissolves TBHQ in a small amount of oil or 95% alcohol solution, and prepares 5-10% TBHQ oil or alcohol solution. Then, directly or with a measuring device, it is added to the fat or oil and stirred evenly.The pumping method injects the TBHQ concentrated solution prepared by the seed method into a pipeline with a fixed flow rate and flow rate of fat or oil that needs to be stable at a specified proportion through a stainless steel quantitative pump.
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Hydroquinone Uses:In medicine, hydroquinone is mainly used in the treatment of pigmented skin diseases, such as chloasma and freckles, etc.
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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 ℃.
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When the oil contains a large amount of metal ions and oxygen, the addition of antioxidants can inhibit the formation of peroxides. When citric acid is combined with antioxidants, the higher the content of these impurities in the oil, the more obvious the synergistic effect. TBHQ has good oil solubility and thermal stability, and does not change in color after heating. It can be added before and after the deodorization process of oil.
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The seed method first completely dissolves TBHQ in a small amount of oil or 95% alcohol solution, and prepares 5-10% TBHQ oil or alcohol solution. One dose is versatile and can effectively inhibit the growth of bacteria and molds. Within the scope of added applications, it can inhibit the growth of almost all bacteria and yeast, and has a good inhibitory effect on mold harmful to human health such as Aspergillus flavus.The antioxidant effect of this product is very ideal, 5-7 times stronger than BHA, BHT, and PG.
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In the study, it was also found that the antioxidant effect of TBHQ is 5-7 times that of other antioxidants, because their stability is different after reacting with peroxides. In addition, TBHQ also has characteristics such as high temperature resistance, oil solubility, and antibacterial properties, which are widely used in edible oils, fried foods, etc.
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Product ParametersTBHQ is white to light grey crystalline or crystalline powder, with very slight special smell, soluble in ethanol, acetic acid, ethyl alcohol, isopropyl alcohol, ethyl alcohol and oil, etc., a few are insoluble in water (25 ℃ <1%: 95 ℃ ﹤ 5%) TBHQ is a kind of oil-soluble antioxidant, which can prevent or prolong the oxidation of oil and fat deterioration in food.How to use the productSeed methodFirst dissolve TBHQ in a small amount of oil (or 95% alcohol solution), formulated as 5% ~ 10% of TBHQ oil (or alcohol solution), then directly or by the dosage added to the fat or
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White to light gray crystal or crystalline powder, with special odor, melting point 126.5~128.5℃, boiling point 300℃, slightly soluble in water (25℃, <1%), easily soluble in ethanol (120%), acetone (190%), ethyl acetate (100%), insoluble in toluene, and soluble in animal and vegetable oils. MTBHQ is mainly used as polymer inhibitor, heat and light stabilizer and industrial antioxidant.
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Adding citric acid has a certain synergistic effect on TBHQ antioxidant activity.
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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.
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When the oil contains a large amount of metal ions and oxygen, the addition of antioxidants can inhibit the formation of peroxides. When citric acid is combined with antioxidants, the higher the content of these impurities in the oil, the more obvious the synergistic effect. TBHQ has good oil solubility and thermal stability, and does not change in color after heating.The process of adding oil is complex, and it is easy to precipitate or oxidize during placement. Therefore, they should not be used as advanced oil antioxidants.
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With the development of farming and pet industry, the market demand for feed is increasing day by day, feed antioxidant TBHQ into the people's vision.1.Product ParametersMolecular formula: C10H14O2Molecular weight: 166.22CAS No.: 1948-33-0The experimental results show that adding 002% TBHQ to oil can increase the antioxidant stability of the tested oil by 2-5 times, thus extending the shelf life of oil based foods compared to adding traditional antioxidants; And the antioxidant effect increases with the increase of the addition amount; The use of a small amount of synergist in combination
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The experimental results show that adding 002% TBHQ to oil can increase the antioxidant stability of the tested oil by 2-5 times, thus extending the shelf life of oil based foods compared to adding traditional antioxidants; And the antioxidant effect increases with the increase of the addition amount; The use of a small amount of synergist in combination with TBHQ can have a synergistic effect on antioxidant activity and enhance its antioxidant effect; The antioxidant effect of TBHQ on different oils is not entirely related to the iodine value, so further research on its application and develo
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Industrial antioxidant 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.
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Product Characteristics1.Tertiary butylhydroquinone is a highly efficient, low-toxicity antioxidant phenolic antioxidant with excellent antioxidant effect, and with the existing food antioxidants BHA, BHT, PG, etc. Comparison of antioxidant capacity as high as 5-7 times2. synergistic: with other antioxidants (such as BHA, B HT) and chelating agents (such as citric acid, etc.) together, there is a synergistic effect.3. High temperature resistance: it can be applied to high temperature processed food, such as frying food, with good thermal stability.4.
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The antioxidant effect of this product is very ideal, 5-7 times stronger than BHA, BHT, and PG.
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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. Tertiary butylhydroquinone (t butylhydroquinone), referred to as TBHQ molecular formula for CH1402, molecular weight of 166.22.Product FeaturesRapeseed oil antioxidant TBHQ has ideal antioxidant effect, which is 5~7 times stronger than BHA, BHT and PG.
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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.
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