DIISOPROPYLBENZENE HYDROPEROXIDE

Liquid; colorless to pale yellow; sharp, unpleasant odor. May float or sink in water. (USCG, 1999)

• Explosive
• Strong Oxidizing Agent

No rapid reaction with air. No rapid reaction with water.

Combustible. Will increase the intensity of a fire. May cause fire on contact with combustibles. Containers may explode in fire. Flammable alcohol and ketone gases are formed in fire. Burns with a flare effect. Containers may explode. (USCG, 1999)

VAPOR: Irritating to eyes, nose and throat. If inhaled will cause coughing or difficult breathing. LIQUID: Irritating to skin and eyes. Harmful if swallowed. (USCG, 1999)

The explosive instability of the lower dialkyl peroxides (e.g., dimethyl peroxide) and 1,1-bis-peroxides decreases rapidly with increasing chain length and degree of branching, the di-tert-alkyl derivatives being amongst the most stable class of peroxides. Though many 1,1-bis-peroxides have been reported, few have been purified because of the higher explosion hazards compared with the monofunctional peroxides. It is unlikely that this derivative would be particularly unstable compared to other peroxides in its class [Bretherick 2nd ed., p 44 1979].

• Peroxides, Organic

Use caution: Liquids with this reactive group classification have been known to react with the absorbents listed below.

• Cellulose-Based Absorbents
• Expanded Polymeric Absorbents

Excerpt from 145 [Organic Peroxides (Heat and Contamination Sensitive)]:

IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.

LARGE SPILL: Consider initial evacuation for at least 250 meters (800 feet) in all directions.

FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2020)

Extinguish with dry chemicals, foam or carbon dioxide. Water may be ineffective on fire. Cool exposed containers with water. (USCG, 1999)

Stop discharge if possible. Keep people away. Avoid contact with liquid and vapor. Isolate and remove discharged material. Notify local health and pollution control agencies. (USCG, 1999)

Excerpt from ERG Guide 145 [Organic Peroxides (Heat and Contamination Sensitive)]:

Wear positive pressure self-contained breathing apparatus (SCBA). Wear chemical protective clothing that is specifically recommended by the manufacturer when there is NO RISK OF FIRE. Structural firefighters' protective clothing provides thermal protection but only limited chemical protection. (ERG, 2020)

No information available.

INHALATION: move to fresh air; call a doctor.

EYES: flush with water for 15 minutes, holding eyelids open; call physician.

SKIN: wash several times with soap and water. (USCG, 1999)

• DIISOPROPYLBENZENE HYDROPEROXIDE
• ISOPROPYLCUMYL HYDROPEROXIDE