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Chemical synthesis of antioxidants
2018-1-6 12:17:24
Chemical synthesis of antioxidants
There are hundreds of artificial chemical synthetic antioxidants developed internationally, but there are only a dozen chemical synthetic antioxidants that are recognized by countries, which are safe and highly effective. The most frequently used synthetic antioxidants have tertiary butyl hydroxy anisole (BHA), 2, 6-2 tertiary butyl hydroxy toluene (butylated hydroxytoluene), TBHQ (TBHQ) phenolic antioxidants, such as the structure of these phenol compounds react with free radicals to be able to generate stable low energy resonance complex compounds, blocking drugs autooxidation chain reaction mechanism, so it has a strong antioxidant properties.
Butylated hydroxyanisole (BHA) used as antioxidant, which began in 1954, is 2 - with BHA and 3 - with BHA two isomer mixtures, widely used in food and pharmaceutical industries, soluble in fat soluble solvent, on the thermal stability, when used with other antioxidant to antioxidant effect, antioxidant effect is improved obviously, BHA have stronger antibacterial ability, can inhibit the growth of fungi. However, it has been reported in some foreign literatures that it is carcinogenic and has been gradually replaced by new antioxidant agents.
BHT is soluble in liposoluble solvents and is not colored with metal ions. It is susceptible to sunlight and heat and is one of the most commonly used antioxidants. It has significant synergistic effect with BHA, Vc, citric acid and phytic acid, which can be used for long-term preservation of food, medicine and vitamin additives.
TBHQ (THBQ) hydroquinone is a kind of new synthetic antioxidant, is widely used in food, oil and the pharmaceutical industry, according to foreign data demonstrate that its antioxidant capacity than the commonly used with BHA, butylated hydroxytoluene 2 ~ 5 times, moreover, TBHQ also has to inhibit the action of the bacteria and mold.
Antioxidant 1010. White liquid powder, melting point 120 ~ 125 ℃, low toxicity, is a good antioxidant. He used in polypropylene resin is more, is a kind of high thermal stability, is suitable for high temperature under the condition of the use of fertilizer, can prolong the service life of products, in addition, can also be used in most other resin. The usual amount is not greater than 0.5%
Antioxidant 1076. White or light yellow crystalline powder, melting point for 50 to 55 ℃, non-toxic, insoluble in water, soluble in benzene, acetone, ethyl esters and solvents. It can be used as an antioxidant for polyethylene, polypropylene, polystyrene, polyvinyl chloride, polyamide, ABS and acrylic resin. It has the characteristics of good anti-oxygen, small volatilization and washing resistance. The general dosage is not greater than 0.5%; Can be used as food packaging material molding AIDS.
Antioxidant CA. White crystalline powder, melting point 180 ~ 188 ℃, low toxicity, soluble in acetone, ethanol, toluene and ethyl acetate. Suitable for polypropylene, polyethylene, polyvinyl chloride, ABS and polyamide resins, and can be used in contact with the wires and cables. The general dosage is no more than 0.5%
Antioxidants 164. White or light yellow crystalline powder or flake. Melting point 70 ℃, boiling point at about 260 ℃, non-toxic. Used in many kinds of resin, widely used. More suitable for food packaging molding materials (polypropylene, polyethylene, polyvinyl chloride,
Triphenyl phosphite (TPPi antioxidants, stabilizer) is mainly used in PVC, polyethylene, polypropylene, polystyrene, polyester, abs resin, epoxy resin, synthetic rubber antioxidant stabilizer, used in polyvinyl chloride (PVC) products as a chelating agent.
Cas no. : 101-02-0
HS: 29209019.00
The most important index of products: colorless, yellow liquid
Density (rho) 2525:1.183-1.192, refractive index (eta 020) : 1.585 1.590, freezing point ° C: 19-24, chloride (Cl - %) : 0.20 or less
Tax refund: the current tax refund of Triphenyl phosphite is 9 percent
Raw materials: phenol, phosphorus trichloride, phosphorus trichloride.
Anti-oxygen agent DNP. Light gray powder, melting point 230 ℃, soluble in aniline and nitrobenzene, insoluble in water. Suitable for polyethylene and polypropylene. Anti - impact polystyrene and ABS resin, besides having the antioxygenation efficiency, there is good thermal stability and the effect of inhibiting copper and the metal. The general dosage should be no more than 2%
Antioxidant DLTP. White crystalline powder, melting point at about 40 ℃, low toxicity, insoluble in water, soluble in benzene, carbon tetrachloride, acetone. It is used for the auxiliary antioxidant of polyethylene, polypropylene, ABS and polyvinyl chloride resins, which can change the heat resistance and oxygen resistance of products. The general dosage is 0.05%~1.5%
Anti-oxidant TNP. Light yellow viscous liquid, below the freezing point - 5 ℃, boiling point higher than 105 ℃, tasteless, non-toxic, insoluble in water, soluble in acetone, ethanol,. Benzene and tetrachloride. It is suitable for polyvinyl chloride, polyethylene, polypropylene, anti-impact polystyrene and ABS, polyester and other resins, high oxidation resistance in high temperature, no more than 1.5 percent.
The antioxidant TPP. Light yellow transparent liquid, freezing point 19 ~ 24 ℃, boiling point 220 ℃, soluble in alcohol, benzene, acetone. Suitable for polyvinyl chloride, polystyrene, polypropylene and ABS resin for auxiliary antioxidant, usage should not exceed 3%.
The antioxidant MB. Light yellow powder, melting point is greater than 285 ℃, soluble in ethanol, acetone, ethyl acetate, insoluble in water and benzene, suitable for polyethylene, polyamide and polypropylene resin antioxidant; This product does not pollute, does not stain, can be used in white or colourful product. The dosage is no more than 0.5%.
Antioxidant 264. The appearance is white crystal. Melting point of 69-71 ℃; Relative density 1.048 (20/4 ℃); The refractive index of 1.4859 (75 ℃). Solubility in the following solvents at room temperature; Methanol 25%; Ethanol is 26%; Isopropanol 30%; 40% acetone; Petroleum ether 50%; Benzene, 40%; Insoluble in water, glycerin, propylene glycol. It is odorless, tasteless and has good thermal stability. Generic phenolic antioxidant. Widely used in polymer materials, petroleum products and food processing industry.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
There are hundreds of artificial chemical synthetic antioxidants developed internationally, but there are only a dozen chemical synthetic antioxidants that are recognized by countries, which are safe and highly effective. The most frequently used synthetic antioxidants have tertiary butyl hydroxy anisole (BHA), 2, 6-2 tertiary butyl hydroxy toluene (butylated hydroxytoluene), TBHQ (TBHQ) phenolic antioxidants, such as the structure of these phenol compounds react with free radicals to be able to generate stable low energy resonance complex compounds, blocking drugs autooxidation chain reaction mechanism, so it has a strong antioxidant properties.
Butylated hydroxyanisole (BHA) used as antioxidant, which began in 1954, is 2 - with BHA and 3 - with BHA two isomer mixtures, widely used in food and pharmaceutical industries, soluble in fat soluble solvent, on the thermal stability, when used with other antioxidant to antioxidant effect, antioxidant effect is improved obviously, BHA have stronger antibacterial ability, can inhibit the growth of fungi. However, it has been reported in some foreign literatures that it is carcinogenic and has been gradually replaced by new antioxidant agents.
BHT is soluble in liposoluble solvents and is not colored with metal ions. It is susceptible to sunlight and heat and is one of the most commonly used antioxidants. It has significant synergistic effect with BHA, Vc, citric acid and phytic acid, which can be used for long-term preservation of food, medicine and vitamin additives.
TBHQ (THBQ) hydroquinone is a kind of new synthetic antioxidant, is widely used in food, oil and the pharmaceutical industry, according to foreign data demonstrate that its antioxidant capacity than the commonly used with BHA, butylated hydroxytoluene 2 ~ 5 times, moreover, TBHQ also has to inhibit the action of the bacteria and mold.
Antioxidant 1010. White liquid powder, melting point 120 ~ 125 ℃, low toxicity, is a good antioxidant. He used in polypropylene resin is more, is a kind of high thermal stability, is suitable for high temperature under the condition of the use of fertilizer, can prolong the service life of products, in addition, can also be used in most other resin. The usual amount is not greater than 0.5%
Antioxidant 1076. White or light yellow crystalline powder, melting point for 50 to 55 ℃, non-toxic, insoluble in water, soluble in benzene, acetone, ethyl esters and solvents. It can be used as an antioxidant for polyethylene, polypropylene, polystyrene, polyvinyl chloride, polyamide, ABS and acrylic resin. It has the characteristics of good anti-oxygen, small volatilization and washing resistance. The general dosage is not greater than 0.5%; Can be used as food packaging material molding AIDS.
Antioxidant CA. White crystalline powder, melting point 180 ~ 188 ℃, low toxicity, soluble in acetone, ethanol, toluene and ethyl acetate. Suitable for polypropylene, polyethylene, polyvinyl chloride, ABS and polyamide resins, and can be used in contact with the wires and cables. The general dosage is no more than 0.5%
Antioxidants 164. White or light yellow crystalline powder or flake. Melting point 70 ℃, boiling point at about 260 ℃, non-toxic. Used in many kinds of resin, widely used. More suitable for food packaging molding materials (polypropylene, polyethylene, polyvinyl chloride,
Triphenyl phosphite (TPPi antioxidants, stabilizer) is mainly used in PVC, polyethylene, polypropylene, polystyrene, polyester, abs resin, epoxy resin, synthetic rubber antioxidant stabilizer, used in polyvinyl chloride (PVC) products as a chelating agent.
Cas no. : 101-02-0
HS: 29209019.00
The most important index of products: colorless, yellow liquid
Density (rho) 2525:1.183-1.192, refractive index (eta 020) : 1.585 1.590, freezing point ° C: 19-24, chloride (Cl - %) : 0.20 or less
Tax refund: the current tax refund of Triphenyl phosphite is 9 percent
Raw materials: phenol, phosphorus trichloride, phosphorus trichloride.
Anti-oxygen agent DNP. Light gray powder, melting point 230 ℃, soluble in aniline and nitrobenzene, insoluble in water. Suitable for polyethylene and polypropylene. Anti - impact polystyrene and ABS resin, besides having the antioxygenation efficiency, there is good thermal stability and the effect of inhibiting copper and the metal. The general dosage should be no more than 2%
Antioxidant DLTP. White crystalline powder, melting point at about 40 ℃, low toxicity, insoluble in water, soluble in benzene, carbon tetrachloride, acetone. It is used for the auxiliary antioxidant of polyethylene, polypropylene, ABS and polyvinyl chloride resins, which can change the heat resistance and oxygen resistance of products. The general dosage is 0.05%~1.5%
Anti-oxidant TNP. Light yellow viscous liquid, below the freezing point - 5 ℃, boiling point higher than 105 ℃, tasteless, non-toxic, insoluble in water, soluble in acetone, ethanol,. Benzene and tetrachloride. It is suitable for polyvinyl chloride, polyethylene, polypropylene, anti-impact polystyrene and ABS, polyester and other resins, high oxidation resistance in high temperature, no more than 1.5 percent.
The antioxidant TPP. Light yellow transparent liquid, freezing point 19 ~ 24 ℃, boiling point 220 ℃, soluble in alcohol, benzene, acetone. Suitable for polyvinyl chloride, polystyrene, polypropylene and ABS resin for auxiliary antioxidant, usage should not exceed 3%.
The antioxidant MB. Light yellow powder, melting point is greater than 285 ℃, soluble in ethanol, acetone, ethyl acetate, insoluble in water and benzene, suitable for polyethylene, polyamide and polypropylene resin antioxidant; This product does not pollute, does not stain, can be used in white or colourful product. The dosage is no more than 0.5%.
Antioxidant 264. The appearance is white crystal. Melting point of 69-71 ℃; Relative density 1.048 (20/4 ℃); The refractive index of 1.4859 (75 ℃). Solubility in the following solvents at room temperature; Methanol 25%; Ethanol is 26%; Isopropanol 30%; 40% acetone; Petroleum ether 50%; Benzene, 40%; Insoluble in water, glycerin, propylene glycol. It is odorless, tasteless and has good thermal stability. Generic phenolic antioxidant. Widely used in polymer materials, petroleum products and food processing industry.
Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd
http://www.yaruichem.com
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