Hydroquinone 4 Percent-manufacture,factory,supplier from China

(Total 24 Products for Hydroquinone 4 Percent)
Hydroquinone  Uses:In medicine, hydroquinone is mainly used in the treatment of pigmented skin diseases, such as chloasma and freckles, etc.
Hubungi sekarang
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.
Hubungi sekarang
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 ℃.
Hubungi sekarang
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.
Hubungi sekarang
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.
Hubungi sekarang
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.
Hubungi sekarang
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.
Hubungi sekarang
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.
Hubungi sekarang
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.
Hubungi sekarang
1.Product Characteristics1. Synthetic oil antioxidant TBHQ is a highly efficient, low-toxicity phenolic antioxidant with excellent antioxidant effect, and the antioxidant capacity is up to 5-7 times compared with existing food antioxidants such as BHA, BHT and PG.2. Synergistic: TBHQ can be used together with other antioxidants (such as BHA, B HT) and chelating agents (such as citric acid, etc.).3. High temperature resistance: TBHQ can be used in high temperature processed food, such as frying food, with good thermal stability.4.
Hubungi sekarang
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
Hubungi sekarang
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.
Hubungi sekarang
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.
Hubungi sekarang
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.
Hubungi sekarang
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.
Hubungi sekarang
When citric acid is combined with antioxidants, the higher the content of these impurities in the oil, the more obvious the synergistic effect.
Hubungi sekarang
Product ParametersMolecular formula: C10H14O2Molecular weight: 166.22CAS No.: 1948-33-0Antioxidants are substances that prevent or delay oxidation of food, improve the stability of food and extend the storage period.Food antioxidants can be divided into oil-soluble antioxidants and water-soluble antioxidants according to their solubility properties.
Hubungi sekarang
( 1)Stability in chemical reactionParylene is more effective in stabilizing the reaction process, but it discolors the resin.
Hubungi sekarang
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.
Hubungi sekarang
Polymerization inhibitors MTBHQ, as an efficient polymerization inhibitor, plays a crucial role in the chemical industry. It can effectively prevent or slow down the polymerization reaction, thus ensuring the quality and stability of polymer products. The mechanism of action of Polymerization Inhibitors MTBHQ lies in its ability to react with free radicals in the polymerization reaction, thereby interrupting the growth of the polymerization chain. Free radicals are key species in the polymerization reaction that initiate chain reactions leading to the growth of polymer molecular chains.
Hubungi sekarang
Pastry and bread stored in the air for a long time are prone to spoilage due to oxidation of their lipid components. The oxidation of oil components not only causes food discoloration, discoloration, destruction of vitamin A, D, E, and other components, but also produces odor. In addition, essential fatty acids such as linoleic acid and linolenic acid in oil are also damaged, reducing the nutritional function of the product. In severe cases, harmful substances such as oxides, peroxides, and decomposition products such as epoxypropylaldehyde can be produced, leading to food poisoning.
Hubungi sekarang
Physical and chemical properties:Density: 1.328g/cm3Melting point: 172-175℃Boiling point: 286℃Flash factor: 141.6Refractive index: 1.612Vital temperature: 549.9℃Crucial stress: 7.45mpaIgnition temperature: 516℃Explosion limit (v/v): 15.3%Lower explosion restrict (v/v): 1.6 %Property: White needle crystal, discolored through light, with special odor.Solubility: Soluble in hot water, soluble in bloodless water, ethanol and ether, slightly soluble in benzene. Packaging, storage, transportation:1: 25kg (internet weight) kraft paper laminated bag, coated with double polyethylene plastic bag.2:
Hubungi sekarang
The main mechanism of TBHQ is to provide hydrogen to the free radicals R or RO0 in oils and fats, which can form stable dimers and become relatively stable substances.Temperature is the most important factor affecting oil oxidation, similar to general chemical reactions. As the temperature increases, the automatic oxidation rate of oil in the food increases. For every 10C increase in temperature. In addition, essential fatty acids such as linoleic acid and linolenic acid in oil are also damaged, reducing the nutritional function of the product.
Hubungi sekarang
 It plays an irreplaceable role in the production process of pastry food and is also an important source of energy for consumers. However, the oxidation and rancidity of fats and oils, as well as the production of unpleasant flavors, are a problem that troubles many pastry food producers. They not only cause changes in the appearance, taste, and odor of pastry food, but also affect the length of its shelf life. Adding food antioxidants is the most convenient, feasible, and effective method.Pastry is generally made from grains, oil, sugar, and/or sweeteners, eggs, milk, etc.
Hubungi sekarang
Relate News
Chinese nameHydroquinoneForeign nameHydroquinoneAliasHydroquinone, 1,4-benzenediolChemical formulaC6H6O2Molecular weight110.111CAS registration number123-31-9EINECS number204-617-8Melting point172 to 175 °CBoiling point286 °CDensity1.328 g/cm³AppearanceWhite crystalline powderFlash point141.6 ℃ApplicationBlack and white developer, anthraquinone dyes, azo dyes, rubber antioxidant, stabilizer and antioxidantSafety descriptionS26; S36/37/39; S61Hazard SymbolsXn; NHazard Descriptionr22; r40; r41; r43; r50; r68UN Dangerous Goods Number2662Soluble in alcohols and ethers, soluble in water, slightly s
Precautions for use 1. The amount and proportion of terbutylhydroquinone used should be strictly controlled and should not exceed the maximum amount specified.2. Terbutylhydroquinone should be used in acidic medium, avoid mixing with alkaline substances.3. Terbutylhydroquinone should be stored in a cool and dry place, avoiding direct sunlight and high temperature environment.4. butylhydroquinone should be stored in stainless steel or glassware when in direct contact with food, avoid using plastic containers.5.
Abstract: The Ministry of Health announced 4 national food safety standards in the Ministry of Health Announcement No. 12 in 2011, one of which is "GB 2760-2011 Food Safety National Standard Food Additives Use Standard", which was issued in June 2011 It will be officially implemented on the 20th. The preface of the standard clearly points out that some food classification systems of the 2007 edition of "GB 2760-2007 Hygienic Standards for the Use of Food Additives" have been adjusted.
DTBHQ and TBHQ are two food additives that are somewhat similar in function, but also differ in chemical structure and application areas. Let's take a look at the differences between these two food additives.First of all, there are differences in the chemical structures of DTBHQ and TBHQ, whose full name is Di-Tert-Butylhydroquinone, a di-tert-butylhydroquinone, and TBHQ, whose full name is Tert-Butylhydroquinone, also a hydroquinone, but it has only one tert-butyl group.
TBHQ, also known as Tert-Butylhydroquinone, is a food additive that is a synthetic chemical widely used in the food industry to extend the shelf life of foods and prevent oxidation.TBHQ is produced by reacting hydroquinone with tert-butyl alcohol to produce TBHQ, a process that uses advanced technology and strict controls to ensure the high purity and stability of the product.The multiple uses of TBHQ in the food industry are mainly for preventing the oxidation of fats and oils during food processing and storage, thus extending the shelf life of food products.
Introduction and Applications of Terbutylhydroquinone (TBHQ)Introduction of TBHQ Terbutylhydroquinone (TBHQ) is a common food additive, which is widely used as antioxidant and preservative for edible oils, fats and oils, meat, fish, beverages and other foods. In this article, we will introduce the chemical properties, safety, uses and precautions for the use of TBHQ in detail. I.
In modern society, shelf life is one of the key factors for food safety. Therefore, in order to extend the shelf life of food and ensure its stable quality, many food manufacturers use TBHQ, a synthetic antioxidant, which has the advantages of antioxidant, preservative and shelf life extension, and is widely used in various food products.In the potato chip industry, TBHQ is a commonly used food additive. During the production of potato chips, the surface of potato chips will oxidize when exposed to the environmental atmosphere, thus affecting their taste and texture.
TBHQ is a new synthetic antioxidant with good antioxidant effect, especially for vegetable oil antioxidant, has a very good anti-corrosion effect, is internationally recognized as one of the best food antioxidants.Benefits of using TBHQ in food:Good antioxidant effect, added to food can prevent food spoilage and odor, and well prolong the shelf life of food; in addition, it has anti-mold and anti-bacterial effects that other antioxidants do not have, and can effectively inhibit the growth of bacteria such as Bacillus subtilis, Staphylococcus aureus, Escherichia coli and other microorganisms su
Antioxidant TBHQ: chemical structure, synthesis method, properties and uses, antioxidant mechanism, additive amount and use, safety evaluation, market demand and development trend, impact on the environment and treatment measures, evaluation of economic and social benefits, impact on human health and preventive measures1.Chemical structureThe chemical structure formula of TBHQ (tertiary butylhydroquinone) is C10H1402, which is a kind of effective antioxidant, widely used in food, cosmetics, medicine and other fields.2.Synthesis MethodsThe synthesis method of TBHQ mainly includes the following
Application cases of TBHQEdible oils and fats: Adding TBHQ to edible oils and fats can effectively slow down the rancidity process and prolong the shelf life of food. In practical application, TBHQ is usually added directly into oils and fats in the form of powder or liquid, and the usage amount is usually 0.01% to 0.02%.Meat products: Adding TBHQ to meat products can extend shelf life and prevent bacterial contamination and oxidative deterioration.
x

Berhasil dikirimkan

Kami akan menghubungi Anda sesegera mungkin

Menutup