Product Identification

Product Name

3,5-Diisopropylbenzene hydroperoxide

Synonyms

Bis(1-methylethyl)phenyl hydroperoxide

CAS

26762-93-6

Formula

C12H18O2

Molecular Weight

194.3

EINECS

247-988-1

RTECS

MX2440000

RTECS Class

Tumorigen

Beilstein/Gmelin

NA

Physical and Chemical Properties

Appearance

Liquid; colorless to pale yellow; sharp, unpleasant odor.

Melting Point

<-9

Boiling Point

263

Density

0.956 g/cm3 (20 C)

Partition Coefficient

4.31

Usage

Chemical intermediate for hydroquinone (para-isomer).

First Aid Measures

Ingestion

Mucosal if no respiratory compromise is present, dilute immediately with milk or water; no more than 8 ounces in adults and 4 ounces in children. Gastric ipecac contraindicated. Consider insertion of a small, flexible nasogastric or orogastric tube to suction gastric contents after recent large ingestions; the risk of further mucosal injury must be weighed against potential benefits.

Inhalation

Move to fresh air; call a doctor.

Skin

Wash several times with soap and water.

Eyes

Flush with water for 15 minutes, holding eyelids open; call physician.

Handling and Storage

Storage

Materials which are toxic as stored or which can decompose into toxic components.Should be stored in a cool, well ventilated place, out of the direct rays of the sun, away from areas of high fire hazard, and should be periodically inspected. Incompatible materials should be isolated.

Handling

All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Hazards Identification

Inhalation

Stridor, dyspnea, upper airway injury, and pulmonary edema, especially following inhalation of vaporized caustics, may occur.

Skin

Severe skin irritation and/or burns may occur.

Eyes

Ingestion may result in burns to the lips, tongue, oral mucosa, and upper airway. Alkaline eye exposures produce distortion of cellular membranes, loss of corneal, the mucous membrane that lines the inner surface of the eyelid and the exposed surface of the eyeballl and lens epithelium and loss of endothelium of the cornea and blood vessels.

Ingestion

Burns of the esophagus and less commonly the stomach may occur after caustic ingestion; the absence of oral mucosal injury does not reliably exclude esophageal burns. Patients with stridor, drooling or vomiting are more likely to have esophageal burns.

Hazards

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.

UN (DOT)

2171

Exposure Controls/Personal Protection

Personal Protection

Wear appropriate clothing to prevent any reasonable probability of skin contact. Wear eye protection to prevent any possibility of eye contact.

Respirators

Wear positive pressure self-contained breathing apparatus (SCBA).

Exposure Effects

Abnormally low blood pressure and apnea have been reported with severe poisonings. Cerebral edema, cerebral gas embolism, cerebral infarction, and seizures have been reported following ingestion of concentrated (35%) solutions. Death has been reported as a result of embolic cerebrovascular injury.

Poison Class

2

Fire Fighting Measures

Fire Fighting

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

Fire Potential

This material is combustible.

Accidental Release Measures

Small spills/leaks

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.

Stability and Reactivity

Incompatibilities

Aluminum, copper, brass, lead, zinc salts, mineral acids, oxidizing or reducing agents all can cause rapid decomp.

Stability

No data.

Combustion Products

Flammable alcohol and ketone gases are formed in fire.

Transport Information

UN Number

2171

Hazard Class

5.2