Oxybenzone CAS 131-57-7

Active ingredient: Phenyl phthalate

Feature and also Uses: Colorless crystalline powder. Has an enjoyable fragrant odor (oil of wintergreen). The thickness is 1.250 g/cm3, the melting point is 43 ° C, and the boiling point (1.6 kPa) is 173 ° C. Soluble in ether, benzene and also chloroform, soluble in ethanol, nearly insoluble in water as well as glycerol.

This product is a UV absorber, used in plastic products, yet the absorption wavelength array is narrow. Polymer products accepted by the FDA for usage touching food.

Composition: The response product of o-nitroaniline as well as p-cresol

Characteristic as well as makes use of: Look is anemic or light yellow crystals. Soluble in gasoline, benzene, acetone and other organic solvents. The solubility in water is extremely little, as well as it will not be disintegrated by focused antacids as well as concentrated acid. It can ionize with heavy metals to form salts. It can absorb ultraviolet rays with wavelengths of 270 to 280 nm. Melting point 130 ~ 131 ℃.

This product is mainly used in polyester, chlorine-containing polyester, acetate fiber, polyvinyl chloride, polystyrene, plexiglass, polyacrylonitrile as well as various other resins. The stability in clear articles is better than in colored articles. The dose in the product is 0.% to 0.5%.

Component: 2,4-Dihydroxybenzophenone

Feature and also utilizes: This product is light-colored needle-like crystal or white powder. Moisture <0.5%. Ash <0.5%. Melting point 136～149 ℃. Soluble in acetone, methanol, ethanol, methyl ethyl ketone, dioxane, N-picoline and ethyl acetate, extremely insoluble in water, n-heptane and benzene. The solubility of this product in some solvents (g/100ml solvent, 25°C) is acetone 50, benzene 1, ethanol > < 0.5%. Melting point 136 ～ 149 ℃. Soluble in acetone, methanol, ethanol, methyl ethyl ketone, dioxane, N-picoline as well as ethyl acetate, exceptionally insoluble in water, n-heptane and also benzene. The solubility of this item in some solvents( g/100ml solvent, 25 ° C )is acetone 50, benzene 1, ethanol > 50, water < 0.5, n-heptane < 0.5. This item is a UV absorber, appropriate for polyvinyl chloride, polystyrene, epoxy material, cellulose material, unsaturated polyester, paint and artificial rubber. The maximum absorption wavelength range is 280 ~ 340nm, and also the general dosage is 0.1% ~ 1%. Nonetheless, the light stabilization effect of this product is not exceptional.

Ingredient: 2-Hydroxy-4-methoxybenzophenone Properties and also makes use of: This product is light yellow or white crystalline powder. Density 1.324 g/cm3. Melting point 62 ~ 66 ℃. Boiling point 150 ～ 160 ℃( 0.67 kPa), 220 ℃ (2.4 kPa). Soluble in the majority of organic solvents such as acetone, ketone, benzene, methanol, ethyl acetate, methyl ethyl ketone and ethanol, yet insoluble in water. The solubility of this product in some solvents (g/100g solvent, 25 ° C) is benzene 56.2, n-hexane 4.3, ethanol( 95 %) 5.8, carbon tetrachloride 34.5, styrene 51.2, DOP18.7. This item is an ultraviolet absorber, suitable for various plastics such as polyvinyl chloride, polyvinylidene chloride, polymethyl methacrylate, unsaturated polyester, ABS resin as well as cellulose resin. The optimum absorption wavelength array is 28 ~ 340nm, the general dose is 0.1% to 1.5%, the thermal stability is great, and also it does not break down at 200 ° C. This item rarely takes in noticeable light, so it is ideal for light-colored transparent products. This item can additionally be used in paint as well as synthetic rubber. Safety and security preventative measures: Japan and Italy state that when this product is used in food call items, the optimum dose ought to not go beyond 0.3%.

Component: 2-hydroxy-4-n-octyloxybenzophenone Properties and uses
: This product is light yellow or white crystalline powder. Thickness 1.160 g/cm3 (25 ℃). Melting point 48 ～ 49 ℃. Soluble in acetone, benzene, ethanol, isopropanol, slightly soluble in dichloroethane, insoluble in water. The solubility of this item in some solvents (g/100 solvent, 25 ° C )is acetone 74, benzene 72, methanol 2, ethanol (95%) 2.6, n-heptane 40, n-hexane 40.1, as well as water 0.5.

This product is an ultraviolet absorber, which can strongly take in ultraviolet rays with a wavelength of 270 ~ 330nm. It can be made use of for different plastics, especially polyethylene, polypropylene, polystyrene, ABS material, polycarbonate, polyvinyl chloride and also material. Excellent compatibility as well as reduced volatility. The basic dosage is 0.1% to 1%. It has an excellent collaborating impact when made use of with a small amount of 4,4-thiobis( 6-tert-butyl-p-cresol). This item can likewise be made use of as light stabilizer for various coatings.

Security Measures: This product has reduced toxicity. Several countries allow this item to be made use of in plasticized products that enter into contact with food. For example, in the USA for polyolefins, the optimum dosage in the UK is 0.6%, as well as the optimum dose for polyethylene and polypropylene in Italy is 0.5%., Japan’s dosage is polyethylene 0.5%, polypropylene 1%, AS resin and abdominal muscle resin 0.5%, polyvinyl chloride 0.2% (can not get in touch with oily food or food with more than 20% ethanol content).

Toggle ConStructure: 2-( 2′- hydroxy-3′,5′- di-tert-phenyl) -5- benzotriazole chloride Properties and utilizes: This item is an ultraviolet absorber, its qualities and also usages are similar to UV-326, it can strongly soak up ultraviolet rays with a wavelength of 270-380nm, and has great chemical security as well as marginal volatility. Excellent compatibility with polyolefins. Specifically appropriate for polyethylene and also polypropylene. Additionally, it can additionally be used for polyvinyl chloride, polymethyl methacrylate, polyoxymethylene, polyurethane, unsaturated polyester, ABS material, epoxy material and cellulose resin. This product has exceptional thermal sublimation resistance, washing resistance, gas fading resistance and also mechanical residential property retention. Used in combination with anti-oxidants for a significant collaborating effect. To improve the thermo-oxidative security of the product. The basic dosage of this product in plastic is 1% to 3%.
Security Measures: This product is reduced in toxicity. Japan, the USA, France, and Italy allow this product to be made use of in polyolefin plastics that come into contact with food. The maximum dose is 0.5%. It is made use of for other plastics that enter into contact with food. 0.2%, Japan and also France 0.5%.tent

Ingredient: Resorcinol Monobenzoate Characteristic as well as Uses: This item is white crystalline powder. The melting point is 132 to 135 ° C, and also the boiling point is 140 ° C( 20Pa). Mass thickness 0.68 g/cm3 (20%). Soluble in acetone and ethanol, somewhat soluble in benzene, water, n-heptane, and so on.
This item is a UV light stabilizer, as well as its efficacy resembles that of benzophenone light stabilizers. Mostly made use of in polyvinyl chloride, cellulose resin, polystyrene, the basic dosage is 1% to 2%.

Structure: 2,2′- thiobis( 4-tert-octylphenoxy) nickel Characteristic and uses: This item is environment-friendly powder. The absorption top in the ultraviolet region is 290nm (in chloroform). It is suitable for polyolefin plastics such as polyethylene and also polypropylene, especially for the light stablizing of movies and fiber products, as well as can boost the handling performance. This item has a good synergistic impact when made use of along with a UV absorber, or additionally enhances the light stabilization result. Its main negative aspect is that the color is darker, which makes the product shade, and at the same time, it has a supporting antioxidant effect with thioesters at high temperature, making the item grey and black.
Security Precautions: This item is hazardous and also must be utilized with care.

Toggle Active Ingredients: Tris (1,2,2,6,6-pentamethylpiperidinyl) phosphite Characteristic and also Makes use of: This item is white crystalline powder. Melting point 122 ~ 124 ℃. Soluble in ethanol, chloroform, acetone, benzene as well as other solvents, insoluble in water.
This product is a hindered light stabilizer. It does not have the capacity to absorb ultraviolet rays, yet it can capture the active free radicals created by polymer degradation, decay hydroperoxides and move the energy of excited particles, etc. The light stablizing impact is ordinary ultraviolet rays. 24 times the absorptive. This item appropriates for polyethylene, polyethylene as well as various other plastics. It has great compatibility with resins, great handling efficiency, and also low toxicity. In addition to light stablizing, it additionally has great thermal and also oxygen aging resistance. However, this item has inadequate warmth resistance and is not appropriate for lasting usage in hot water tool. Furthermore, this item is best refined as well as utilized at a temperature listed below 270 ℃, as well as the weight loss is more severe when the temperature level surpasses this temperature.Content

Active ingredient: 4-benzoyloxy-2,2,6,6- tetramethylpiperidine.

Residence and Utilizes: This item is white crystalline powder. The melting point is 95 ～ 98 ℃, and also the decay temperature is above 280 ℃. Soluble in acetone, ethanol, ethyl acetate, toluene, insoluble in water.
This item is a hindered light stabilizer, which has practically no capacity to take in ultraviolet rays, but can successfully capture the active complimentary radicals produced by polymer products under the action of ultraviolet rays, so as to play a light stabilization result. This item appropriates for polypropylene, polyethylene, polystyrene, polyurethane, polyamide as well as polyester and other plastics, especially in polyolefins. The light resistance of this item is a number of times that of general UV absorbers. No coloring, no air pollution, good heat-resistant processability, combined with anti-oxidants and UV absorbers, it has excellent synergistic effect.

Active Ingredient: 2,4,6-tris( 2′ n-butoxyphenyl) -1,3,5- triazine.

Properties and uses: This item is light yellow powder. Melting point 156 ~ 165 ℃. Soluble in hexamethylphosphoric triamide, soluble in dimethylformamide when heated up, a little soluble in n-butanol, insoluble in water.
This product is an ultraviolet absorber, which can take in ultraviolet rays with a wavelength of 300-380 nm. It appropriates for different plastics such as polyvinyl chloride, polyoxymethylene, as well as chlorinated polyether. The dose is generally not higher than 1%. Its light stabilization effectiveness is far better than UV-9 as well as UV-531, yet this product has coloring property, which can make the product light yellow, and also the compatibility with resin is also poor.

Active ingredient: Hexamethylphosphoric triamide.

Quality and utilizes: This item is an anemic or light yellow clear fluid with a slightly questionable acidity, density 1.0253 ～ 1.0257 g/cm3 (20 ℃), freezing point 27 ℃, boiling point 116 ～ 117 ℃ (1.48 kPa), refractive index 1.4582 ~ 1.4589 (20 ° C). It is soluble in polar and also non-polar solvents, and can be miscible with common plasticizers such as dioctyl phthalate, dioctyl sebacate, as well as triphenyl phosphite in any kind of percentage.
This product can be made use of as polyvinyl chloride light stabilizer. It can enhance items with exceptional outside anti-aging residential or commercial properties, so it is called PVC high-efficiency weathering agent. Including 2 to 5 parts of this product to the polyvinyl chloride film can not only substantially improve its climate resistance as well as chilly resistance, however additionally decrease the processing temperature level by about 10 ° C. Excellent solvent for various polymer materials such as phenylene sulfide.