Product Identification

Product Name

2,2'-Methylenebis(6-tert-butyl-4-methylphenol)

Synonyms

2-tert-Butyl-6-[(3-tert-butyl-2-hydroxy-5-methylphenyl)methyl]-4-methylphenol
Advastab 405
Antage w 400
Antioxidant 1
Antioxidant bkf
bis(2-Hydroxy-3-tert-butyl-5-methylphenyl)methane

CAS

119-47-1

Formula

C23H32O2

Molecular Weight

340.51

EINECS

204-327-1

RTECS

PA3500000

RTECS Class

Primary Irritant

Beilstein/Gmelin

2062676

Beilstein Reference

4-06-00-06801

EC Class

dangerous for the environment

Physical and Chemical Properties

Appearance

Pale cream to white, free flowing powder. Phenolic odor.

Solubility in water

0.02 mg/L

Melting Point

125 - 128

Density

1.08 g/cm3

Partition Coefficient

6.25

Usage

Stabilizer used in styrenic and olefin polymers and polyoxymethylene homo and copolymers.

Vapor Density

7.6

First Aid Measures

Ingestion

The possible benefit of early removal of some ingested material by cautious gastric lavage must be weighed against potential complications of bleeding or perforation. Activated charcoal activated charcoal binds most toxic agents and can decrease their systemic absorption if administered soon after ingestion. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents.

Inhalation

Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.

Skin

Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists. Pesticides - remove contaminated clothing and jewelry. Wash the skin, including hair and nails, vigorously; do repeated soap washings. Discard contaminated clothing. Irritation - treat dermal irritation or burns with standard topical therapy

Eyes

Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Handling and Storage

Storage

Keep in a cool, dry location in a sealed container.

Handling

Dust suspended in air may ignite with static discharge. Cound equipment, provide adequate and keep away from ignition sources.

Exposure Controls/Personal Protection

Personal Protection

Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.

Respirators

NIOSH/MSHA approved respirator appropriate for exposure of concern.

Exposure Effects

Repeated contact with this material may cause minimal eye and skin irritation.

Poison Class

-

Fire Fighting Measures

Flash Point

195

Fire Fighting

Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use agent most appropriate to extinguish fire.

Accidental Release Measures

Small spills/leaks

Sweep up spills and place in a waste disposal container. Flush area with water.

Stability and Reactivity

Disposal Code

3

Stability

Stable at normal tempertures and pressures.

Incompatibilities

Strong oxidizing agents.

Decomposition

Oxides of carbon.

Transport Information

HS Code

2907 29 00

Hazards Identification

EC Risk Phrase

R 53

EC Safety Phrase

S 22 24 61