Chemical Auxiliaries

Chemical name: 2,4-Dihydroxy-Benzophenone(Benzophenone-1) CAS No.：131-56-6 Molecular formular：C13H10O3 Molecular weight：214.22 Molecular structure Specification Appearance: Yellowish crystalline podwer Melting point，℃：143 - 146 Purity, %: ≥99 Loss on Drying, %: ≤0.5 Light transmittance 290nm≥630 Application UV ABSORBER HOSORB-UV-0 is a light stabilizer agent. It is applicable to polyolefine, poyvinyl chlornamee, polystyrene etc. It can be used as the intermediate of UV-absorbing agents as well. info at hhochem.com

Chemical Name： Nonylphenol Disulfide Oligomer CAS NO.: 172826-32-3 Specification Appearance：Dark brown, viscous liquid Sulfur Content,% 9.4-10.6 Chloride Concentration, % 0.1 max. Viscosity at 100 °C, centistokes 30 – 100 mPa Solubility: Soluble in benzene, toluene, heptane, methanol, ethanol and other organic solvents; Insoluble in water. Its solubility is (25 ℃, g/100g): Toluene＞ 100 Heptane＞ 100 Methanol＞ 100 Water＜ 1 Application ANTIOXIDANT HONOX-323 is used in rosin, rosin ester, rosin resin, adhesive, petroleum oil and wax. It makes improvement in color bleaching and disproportionation catalyst. 1, Rosin or rosin resins such as pentaerythritol rosin ester, maleic acid resins, glycerol rosin ester: adding 0.2-0.3% 323 and 2-3 Gardner can be improved greatly. 2, Disproportionation of rosin: it is an efficient catalyst for the disproportionation of rosin. It converts instable conjugated double bond in the rosin molecule into stable conjugated double bond with an aromatic ring structure, which means to convert the abietic acid into dehydroabietic acid. The dosage in the process is 0.1-0.3% and optimum amount is 0.2%. 3, Anti-crystallization of rosin: Rosin is a non-crystalline transparent solid, but it tends to crystallize. Crystallization of rosin causes a reduction in rosin’s transparency and solubility, affecting its usage. Adding 0.2% 323 to the rosin and it can improve its anti-crystallization performance. info at hhochem.com

Chemical Name: Triphenyl phosphite CAS No.：101-02-0 Molecular formula：C18H15O3P Molecular weight：310 Molecular structure Specification Appearance: Clear liquid Purity, %:≥ 98 Color（Pt-Co）：≤40 Freezing point，℃：19-24 Refractive index： 1.585-1.590 Density：1.183-1.192 Acid value.(mgkoH/g), %: ≤ 0.50 Application PHOSPHITE ANTIOXIDANT HONOX-TPP is widely used in PVC products to keep products' transparency as chelating agent. As assisting antioxidant, It is suitable for PE, PP, ABS, PS, lubricant, ABS resin, epoxy resin, synthetic rubber etc. It is used as a performance additive to improve the color and clarity of alkyd resin, unsaturated polyester resin and various industrial oils during their production. It is also used in paint, coating, ink, adhesive and pesticide intermediates. info at hhochem.com

Chemical Name: Trilauryl Phosphite CAS No.：3076-63-9 Molecular formula：C35H75O3P Molecular weight： 586.95 Molecular structure Specification Appearance: Clear liquid Specific gravity (25 ℃)：0.860-0.890 Refractive index (25 ℃)：1.450-1.460 Acid Value (mgKOH/g): 0.20 max. Color (APHA): 50 max. Application PHOSPHITE ANTIOXIDANT HONOX-TLP is a clear liquid which has C36H75O3P as chemical formula. It is a phenol-free trialkyl phosphite which can be used as lubricant additive to improve anti-friction and anti-wear characteristics. It also functions as a sulfur deactivator. It may be used as a stabilizer in PVC, polyester fibers and in polypropylene when regulatory approval for food contact is not required. It can provide excellent processing heat stability. It is widely used in PVC, ABS, SBR, CR, PU etc. info at hhochem.com

Chemical Name: Triisodecyl Phosphate CAS No.：25448-25-3 Molecular formula：C30H63O3P Molecular weight：502 Molecular structure Specification Appearance: Clear liquid Specific gravity (25 ℃)：0.880-0.905 Refractive index (25 ℃)：1.450-1.461 Acid Value (mgKOH/g): 0.20 max. Color (APHA): 50 max. Application PHOSPHITE ANTIOXIDANT HONOX-TDP is a clear liquid which has C30H63O3P as chemical formula. It is a phenol-free trialkyl phosphite which can be used as lubricant additive to improve anti-friction and anti-wear characteristics. It also functions as a sulfur deactivator. It may be used as a stabilizer in PVC, polyester fibers and in polypropylene when regulatory approval for food contact is not required. info at hhochem.com

Chemical Name: Tetraphenyl Dipropylene Glycol Diphosphite CAS No.：80584-85-6 Molecular formula：C30H32O7P2 Molecular weight：566 Molecular structure Specification Appearance: Clear liquid Specific gravity (25 ℃)：1.164-1.190 Refractive index (25 ℃)：1.557-1.563 Application PHOSPHITE ANTIOXIDANT HONOX-TDD is a specialty diphosphite which is useful as a secondary stabilizer in many polymers, including PVC, Polyurethane, ABS, Engineering plastics etc.. info at hhochem.com

Chemical Name： Mixture of poly-tert-butylphenoldisulfide and stearic acid CAS No.：60303-68-6 ; 57-11-4 Molecular structure Specification Appearance： Light yellow to brown granules Sulfur content，%：26.4-28.4 Softening Point，℃：75-95 Stearic acid, %: 9.0-11.0 Application TB710 acts as a nitrosamine-free vulcanizing agent. It also acts as an antioxidant because of its phenolic structure. Serves as an alternative for TB7 in cases where an agent of lower softening point is required for good dispersion into a rubber compound. It offers high elastomer solubility. It forms monosulphide bridges which are more stable and have very good resistance to heat and ageing when compared with typical polysulfide bridges. It is used for polymers like rubber and in tire industry applications. It contains active sulfur and can vulcanize rubber under heating condition. The vulcanizate has the properties of non-frosting, high tensile strength and excellent heat resistance. It can be used as sulfur donor vulcanizing agent for natural rubber or synthetic rubber. It has a good tackifying effect between different polar rubber such as NR, CR, IIR, EPDM and obtains co-vulcanization effect. In semi-effective and effective vulcanization system, it partially or completely substitutes sulfur, DTDM and other sulfur donors. It does not produce nitrosamine toxic gases in the vulcanization process. It is environmentally friendly additive. It is used for tyres’ inner layer, sidewall, tread, bead filler, sealing gasket, conveyor belt, automobile rubber hose, shock absorption and so on. info at hhochem.com

Chemical Name： Poly-tert-Butylphenoldisulfide CAS No.：60303-68-6 Molecular formula：(C10H14O)x▪(Cl2S2)y Molecular structure Specification Appearance：Yellow to reddish granules Sulfur content，%：29.5-31.5 Softening Point，℃：95-115 Application TB7 is the sulfur donor for natural and synthetic rubbers. It produces a high percentage of mono-sulfidic crosslinks that results in vulcanizates with superior aging characteristics. It can be used as either complete or partial replacements for sulfur and thiuram and DTDM sulfur donors in EV and semi-EV type cure systems. In tires TB7 serials are used in the innerliner, chafer, bead apex, sidewalls, and tread. Polymers: Natural rubber and synthetic elastomers. Especially good in curing rubber that contains chlorine such as chlorobutyl and polychloroprene. Synergism: It can be used with most typical rubber accelerators and sulfur. When it is used as a partial replacement for sulfur, TB7 tends to improve dispersion of other additives in the rubber. Crosslink Type: TB7 promotes mono-sulfidic crosslinks resulting in vulcanizates with excellent heat and aging resistance. Non-nitrosamine: TB7 does not produce nitrosamines like many of the other sulfur donors such as DTDM and the thiurams. info at hhochem.com

Chemical Name: Poly ( Dipropyleneglycol) Phenyl Phosphite CAS No.：80584-86-7 Molecular formula：C102H134O31P8 Molecular weight：2102 Molecular structure Specification Appearance: Clear liquid Specific gravity (25 ℃)：1.168-1.180 Refractive index (25 ℃)：1.533-1.538 Application PHOSPHITE ANTIOXIDANT HONOX-PDP is a high molecular weight phosphite antioxidant which has a high phosphorous content. It is available to apply in stabilizer in many polymers, including PVC, PU foam, PU leather, PU coating, synthetic resin, epoxy resin etc. info at hhochem.com

Chemical name: Ditridecyl thiodipropionate CAS No.：10595-72-9 Molecular formular：C32H62O4S Molecular weight： 542.9 Molecular structure Specification Appearance: Colorless or light yellow liquid Specific gravity, g/cm3: 0.931-0.941 Acid value, mgKOH/g: ≤0.5 Color, ( Pt-Co): ≤50 Saponificating value, mgKOH/g : 200-210 Solubility (20℃, g/100g solvent) Soluble in ethyl acetate, methyl ethyl ketone, normal heptane and toluene. Insoluble in water; Application ANTIOXIDANT HONOX-DTDTDP is a liquid secondary stabilizer and antioxidant and have excellent compatibility with resin. It is used for polymers (ABS，PP，PE，and PVC) and has a good synthesize effect in combination with phenolic antioxidant. No toxicity( Oral rat LD50＞10mg/kg). info at hhochem.com

Chemical name：Calcium bis[monoethyl(3,5-di-tert-butyl-4- hydroxylbenz , yl)phosphonate] 50% + 4,4’-Thiobis(2-t-butyl-5-methylphenol) 50% CAS No.：65140-91-2 & 96-69-5 Molecular weight：695g/mol, 358g/mol Molecular structure: Specification Appearance：White, free flowing powder Odor: Odorlesss Application ANTIOXIDANT HONOX-B551 is an associative antioxidant which include 50% antioxidant 300 and 50% antioxidant 1425. It is an esterification catalyst and bleaching agent system with antioxidant properties. When Antioxidant 300 is used with Antioxidant 1425, it would have been an excellent complement in performance. It offers accelerated reaction times and produces a resin with reduced color and low acid numbers. It is approved in many countries for use in food contact applications. info at hhochem.com

Chemical name: 2,5-Di-Tert-Butylhydroquinone CAS No.:88-58-4 Molecular formula:C14H22O2 Molecular weight:222 Molecular structure Specification Appearance: White powder Assay,%:≥98 Melting point,℃:212-218 Ash,%:≤0.1 Volatility,%: , ≤0.5 Solubility (25℃, g/100g solvent) Water: Insoluble Caustic: Insoluble Acetone: 25 Ethanol (95%): 17 Ethyl Acetate: 31 Toluene＜1 Styrene＜5 Application ANTIOXIDANT CS1205 is generally used as a polymerization inhibitor, an antioxidant and a stabilizer. It is used mostly in industrial applications, particularly in rubbers, adhesive and adhesive films, paints, and monomers. Stabilizer: It can strongly absorb ultraviolet wavelength of 280-310 nm. It is the thermal stabilizer for polyolefin fiber (dosage 0.5%) and film (dosage 0.01-2%) such as polyethylene, polypropylene, polyester resin (such as polyester). Inhibitor: it is the polymerization inhibitor for a variety of resin monomers. The effect is sustained and no color change when it is compared to hydroquinone. It has good inhibition to butadiene, vinyl acetate, styrene and other vinyl monomer. Antioxidant: It can also be used as an additive for vegetable oils, increasing the oxidation resistance of oils and fats, stabilizing oils and extending storage period. Rubber antiager: It is the excellent anti-aging agent for light colored rubber products and the antioxidant for natural rubber, synthetic rubber and latex, retarding the oxidation and UV aging of the cured rubber and the uncured rubber. It also has the performances of heat resistance and flex resistance. The synergism is realized when it is combined with anti-aging DNP. It is also effective to the adhesive. It is easy to disperse in rubber products, non-discoloring and non- staining. It can be used to the production of light color rubber products, medical products and latex products. The general dosage is 0.3-0.5%. info at hhochem.com

Chemical name: Distearyl thiodipropionate CAS No.: 693-36-7 Molecular formular: C42H82O4S Molecular weight: 683.16 Molecular structure Specification Appearance: White granulates powder Melting point,℃ : 63.5-68.5 Ash content,%: ≤ 0.01 Loss on heating,%: ≤ 0.05 Acid value, mgKOH/g: ≤0.05 Color, ( Pt-Co): ≤60 Saponificating value, mgKOH/g : 160-170 Solubility (20℃, g/100g solvent) Soluble in almost organic solvents but insoluble in alcohol and water.  Application ANTIOXIDANT HONOX-DSTDP is a good peroxide decompose agent. It has a low volatility, no pollution and no discoloration. It is mainly used in PE, PP, ABS, HIPS, Polyester and polyamide. Efficient stabilizer for polyolefins, particularly PP and HDPE.It is quite often used as a synergist in combination with phenolic antioxidants (1010,1076,CA) and UV absorbers. It has been approved for use in some food packaging applications. info at hhochem.com

Chemical Name: Diisodecyl pentaerythritol diphosphite CAS No.：26544-27-4 Molecular formula：C25H50O6P2 Molecular weight：508 Molecular structure Specification Appearance: Clear liquid Specific gravity (25 ℃)：1.020-1.050 Refractive index (25 ℃)：1.4650-1.4850 Application PHOSPHITE ANTIOXIDANT HONOX-DPD is a specialty diphosphite which is useful as a secondary stabilizer. It is a new environmental friendly phosphite antioxidant which doesn’t contain phenol, nonylphenol, bisphenol A, BHT and other harmful substances. Good transparency, non-toxic, pollution-free, it can effectively replace TPP, TNPP, PDOP etc. The ability of decomposing hydrogen peroxide is strong and it has better initial coloring, transparency and high temperature resistance than the ordinary phosphite antioxidants. It can be used for food contact packaging materials instead of antioxidants TPP, TNPP, PDOP, 1500 and so on. It has excellent thermal stability and color stability. It can be used in the product processing as chelating agent and stabilizer. It can effectively inhibit the aging of the products and maintain the transparency of products. It has good hydrolysis resistance stability. The synergistic effect can be achieved with the use of hindered phenolic antioxidants and UV absorbers. It can be widely used in PVC, PE, PP, PS, polyamide, polycarbonate, ABS and other polymer materials after compounding with hindered phenolic antioxidants. info at hhochem.com