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4,4'-Thiobis(6-tert-butyl-m-cresol)

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CAS:96-69-5
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4,4'-Thiobis(6-tert-butyl-m-cresol) manufacturers

  • Antioxidant 300
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  • $5.00 / 1KG
  • 2024-09-23
  • CAS:96-69-5
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  • antioxidant AN 300
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  • 2024-09-20
  • CAS:96-69-5
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  • Antioxidant 300
  • Antioxidant 300 pictures
  • $0.00 / 1KG
  • 2024-09-18
  • CAS:96-69-5
  • Min. Order: 1KG
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4,4'-Thiobis(6-tert-butyl-m-cresol) Basic information
Product Name:4,4'-Thiobis(6-tert-butyl-m-cresol)
Synonyms:4,4'-Thiobis(6-tert-butyl-3-methylphenol);5-t-Butyl-4-hydroxy-2-methylphenyl sulfide;antagecrystal;antioxidantao;antioxidanttmb6;Bis(4-hydroxy-5-tert-butyl-2-methylphenyl) sulfide;bis(4-hydroxy-5-tert-butyl-2-methylphenyl)sulfide;Disperse MB-61
CAS:96-69-5
MF:C22H30O2S
MW:358.54
EINECS:202-525-2
Product Categories:Organics;Industrial/Fine Chemicals;TITANIUM
Mol File:96-69-5.mol
4,4'-Thiobis(6-tert-butyl-m-cresol) Structure
4,4'-Thiobis(6-tert-butyl-m-cresol) Chemical Properties
Melting point 160-165 °C
Boiling point 460.94°C (rough estimate)
density 1.06~1.12g/cm3
vapor pressure 0.001Pa at 20℃
refractive index 1.5200 (estimate)
Fp 215 °C
storage temp. Store below +30°C.
solubility DMSO (Slightly), Methanol (Slightly)
pka10.76±0.36(Predicted)
form Fine white to gray powder.
color White to Off-White
Water Solubility <0.01 g/100 mL at 18 ºC
Stability:Stable under recommended storage conditions., Stable Under Recommended Storage C
InChIKeyHXIQYSLFEXIOAV-UHFFFAOYSA-N
LogP5.24 at 25℃
CAS DataBase Reference96-69-5(CAS DataBase Reference)
NIST Chemistry Reference4,4'-Thiobis(3-methyl-6-t-butylphenol)(96-69-5)
EPA Substance Registry System4,4'-Thiobis(6-tert-butyl-m-cresol) (96-69-5)
Safety Information
Hazard Codes Xi,N
Risk Statements 36/37/38-50/53-43
Safety Statements 37/39-26-61-60-36/37-24/25
OEBB
OELTWA: 10 mg/m3 (total)
WGK Germany WGK 2 water endangering
RTECS GP3150000
Autoignition Temperature402 °C
HS Code 29309070
Hazardous Substances Data96-69-5(Hazardous Substances Data)
ToxicityLD50 orally in Rabbit: 2345 mg/kg
MSDS Information
4,4'-Thiobis(6-tert-butyl-m-cresol) Usage And Synthesis
Description4,4'-Thiobis(6-tert-butyl-m-cresol) (Antioxidant 300), melting point 161-163℃, white powder, low volatility, low toxicity; soluble in organic solvents such as benzene, toluene, acetone, methanol, ethanol, carbon tetrachloride, slightly soluble in petroleum solvents, insoluble in water, is a non-polluting, high-efficiency phenolic antioxidant with low volatility, high antioxidant efficiency, good thermal stability and weather resistance, and little effect on the electrical properties of the product. It also has a synergistic effect when used with carbon black and octadecyl alcohol. It can be used as an antioxidant for polypropylene, ABS, polystyrene, polyphthalamide, polyurethane, etc., and is suitable for white, bright-colored and transparent products. It has very low toxicity and is allowed to be used in plastic products that come into contact with food in many countries.
Chemical Properties4,40-Thiobis(6-tert-butyl-m-cresol) is a light gray to tan powder. Aromatic odor.
Chemical Propertieswhite to almost white crystals or crystalline
Uses 4,4''-Thiobis(2-tert-butyl-5-methylphenol) is an antioxidant in the rubber and plastics industry. 4,4''-Thiobis(2-tert-butyl-5-methylphenol) is a radical inhibitor which prevents the thermal decomposition of the peracid. In addition, it is used as a stabilizer in polyethylene and polyolefin packaging materials for foodstuffs. Protection of light-colored rubber from oxidation and of nonstaining neoprene compounds against deterioration.
General DescriptionWhite or light gray to tan powder.
Air & Water ReactionsSensitive to base hydrolysis and may spontaneously oxidize in solution. . Insoluble in water.
Reactivity Profile4,4'-Thiobis(6-tert-butyl-m-cresol) may be sensitive to light.
HazardToxic by inhalation. Upper respiratory tract irritant. Questionable carcinogen.
Health Hazard4,4'-Thiobis(6-tert-butyl-mcresol) (TBBC) is of low systemic toxicity in animals; allergic contact dermatitis has been reported in humans.
Fire Hazard4,4'-Thiobis(6-tert-butyl-m-cresol) is combustible.
Flammability and ExplosibilityNon flammable
Safety ProfilePoison by intraperitoneal route and probably by ingestion and inhalation. Mutation data reported. See also SULFIDES. When heated to decomposition it emits highly toxic fumes of SOx.
Synthesis2-tert-butyl-5-methylphenol (164.2, 1.0mol), silver nitrate (169.9, 1.0mol), iodine (253.8g, 1.0mol) and dichloromethane 0.7L is added to the reactor, stirred at room temperature under light-proof conditions, and the colour of iodine gradually disappears, accompanied by the generation of silver iodide. After 30 min, the generated silver iodide is filtered and recovered, and the filtrate is washed with 1.1L water and recycled for washing Water. After the organic phase is dried with industrial anhydrous magnesium sulfate, Cu (8.2g), thiourea (38.1g, 0.5mol) and triethylamine 200g (about 273ml) are added inside and then reacted for 4 hours under reflux. After the reaction terminates, it is naturally cooled to room temperature, and the Cu catalyst is filtered and recovered; then water is added for dilution and washing, and after separating the aqueous phase, the organic phase is added with water again, and the pH is adjusted to 6-7 with phosphoric acid, and the aqueous phase is separated after standing. The organic phase was washed with saturated sodium chloride aqueous solution and water, respectively, dried with industrial magnesium sulfate, distilled under reduced pressure, and dichloromethane was recovered, then recrystallized with ethanol. 159.5 g of 4,4′-thiobis(6-tert-butyl-3-methylphenol) was obtained.
Potential ExposureThis material is used as an antioxidant in the plastics and rubber industries; in Neoprene and other synthetic rubbers; in polyethylene and polypropylene.
CarcinogenicityTBBC was not mutagenic in Salmonella typhimurium strains with or without metabolic activation. In Chinese hamster ovary cells, TBBC induced an increase in sister chromatid exchanges but there were no increases in chromosomal aberrations.
IncompatibilitiesIncompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. May evolve explosive hydrogen sulfide upon contact with moisture or acids.
4,4'-Thiobis(6-tert-butyl-m-cresol) Preparation Products And Raw materials
Raw materialsChlorine-->Sulfur-->Isobutylene-->m-Cresol-->6-tert-Butyl-m-cresol
Tag:4,4'-Thiobis(6-tert-butyl-m-cresol)(96-69-5) Related Product Information
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