Durene

0.8875 at 68 °F (NTP, 1992) - Less dense than water; will float

0.838 @ 81°C

130 °F (NFPA, 2010)

74 °C

386.2 °F at 760 mmHg (NTP, 1992)

196 °C @760 [mm Hg]

1,2,4,5-tetramethylbenzene appears as colorless crystals with a camphor-like odor. (NTP, 1992)

Colorless solid; [CAMEO]

This chemical does not meet GHS hazard criteria for 8.1% (24 of 298) of reports.

Danger

H228 (89.6%): Flammable solid [Danger Flammable solids]

P210, P240, P241, P273, P280, P370+P378, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 298 reports by companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Chemical: Benzene, 1,2,4,5-tetramethyl-

Benzene, 1,2,4,5-tetramethyl-: Does not have an individual approval but may be used under an appropriate group standard

Vigorous reactions, sometimes amounting to explosions, can result from the contact between aromatic hydrocarbons, such as 1,2,4,5-TETRAMETHYLBENZENE, and strong oxidizing agents. They can react exothermically with bases and with diazo compounds. Substitution at the benzene nucleus occurs by halogenation (acid catalyst), nitration, sulfonation, and the Friedel-Crafts reaction.

EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

SMALL SPILLS AND LEAKAGE: If you spill this chemical, use absorbent paper to pick up all liquid spill material. Your contaminated clothing and absorbent paper should be sealed in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with alcohol followed by washing with a strong soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.

21 [mg/m3]

230 [mg/m3]

1400 [mg/m3]

RECOMMENDED RESPIRATOR: Where the neat test chemical is weighed and diluted, wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter.