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.