Product name: 2,2'-Methylenebis(6-tert-butyl-4-methylphenol)
Product Name: 2,2'-Methylenebis(6-tert-butyl-4-methylphenol).
CAS: 119-47-1
EINECS: 204-327-1
Molecular Formula: C23H32O2
Molecular Weight: 340.5
Structural formula:
Appearance: Milky, white, off-white to light yellow powder
Appearance: Property Pure products are white powders with a yellowish pink tint when exposed to the air for a long time. Slightly phenolic smell. Soluble in organic solvents such as benzene and acetone, insoluble in water, solubility in rubber is higher than 2%.
Melting Point: 123-127 °C(lit.)
Boiling Point: 187℃
Density: 1.04g/cm3
Vapor pressure: <1 hPa
Refractive index: 1.4480 (estimate).
Flash Point: 195°C (383°F).
Storage condition: Store below +30°C.
Solubility: 0.007mg/l almost insoluble
pKa: 11.32±0.48(Predicted).
State: White to off-white solid
Color: White to off-white
PH value: 4-7 (H2O, 20℃)(aqueous suspension)
Water Solubility: 7μg/L at 20°C
Test items
Reference purity: ≥99%.
Ash: ≤0.1%.
Chromaticity (APHA): 50-100
Copper content: ≤5ppm
Volatiles: ≤0.3%.
Manganese content: ≤1 ppm
Residue on 100mesh sieve: 无
LogP: 6.25 at 20℃
Uses I
General-purpose phenolic antioxidant, widely used in natural rubber, synthetic rubber, latex, other synthetic materials and petroleum products as an antioxidant
Uses II
Antioxidant 2246 (2,2-methylenebis-(4-methyl-6-tert-butylphenol)) is a highly effective non-polluting antioxidant with excellent performance. In the rubber industry, antioxidant 2246 is an antioxidant for synthetic rubber, latex and natural rubber, and is one of the better phenolic antioxidants. Rubber products with antioxidant 2246 (119-47-1) can resist thermal and oxidative aging, and partially prevent the destruction of light ozone aging and multiple deformations. and can passivate the salts of variable valence metals. It is used for light-colored and colored rubber products
In the plastics industry, antioxidant 2246 can prevent the heat aging and photoaging of chlorinated polyether, impact resistant polystyrene, ABS resin, polyoxymethylene, cellulose resin at a dosage of 0.5-1%.
Physical characteristics
Appearance: White powder
Light transmittance:
425nm ≥96%
450nm ≥98%
Volatile matter: ≤0.5%.
Ash content: ≤0.1%.
Melting Point: 120-133°C
Bulk density: 548-646 g/L
Relative density: 1.04-1.08
Weight loss temperature: ≥270°C
Application: 2,2'-Methylenebis (6-tert-butyl-4-methylphenol) is a widely used high-efficiency non-polluting antioxidant of Uses, which is widely used in synthetic resins, synthetic rubber, and natural rubber.
