Product Identification
【Product Name】2-Ethyl-hexaneperoxoic acid 1,1-dimethylethyl ester
【Synonyms】tert-Butyl 2-ethylhexaneperoxoate；引发剂OT
【CAS】3006-82-4
【Formula】C12H24O3
【Molecular Weight】216.32
【EINECS】221-110-7
【Beilstein/Gmelin】2248900

Physical and Chemical Properties
【Appearance】Colorless liquid with a sweet odor.
【Solubility in water】Insoluble.
【Melting Point】83℃
【Boiling Point】265℃
【Vapor Pressure】3.4
【Density】0.891 g/cm3 (20℃)
【Partition Coefficient】2.85
【Vapor Density】7.5

First Aid Measures
【Ingestion】Do not induce vomiting. Seek medical assistance.
【Inhalation】Move victim to fresh air. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult.
【Skin】Remove and isolate contaminated clothing and shoes. Remove material from skin immediately. Immediately flush with running water for at least 20 minutes.
【Eyes】Immediately flush with running water for at least 20 minutes.

Handling and Storage
【Storage】

Store below 10 C. Keep away from heat, sparks, flames and combustible materials. Keep container closed.
【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
【Ingestion】See Inhalation.
【Inhalation】May cause severe injury or burns.
【Skin】See Inhalation.
【Eyes】See Inhalation.
【Hazards】Sensitive to temperature rises. Above a given Control Temperature they decompose violently and catch fire. May ignite combustibles (wood, paper, oil, clothing, etc.). May ignite spontaneously if exposed to air. May be ignited by heat, sparks or flames. May burn rapidly with flare-burning effect. Containers may explode when heated. Runoff may create fire or explosion hazard.
【UN (DOT)】2143, 2888

Exposure Controls/Personal Protection
【Personal Protection】Wear appropriate protective gloves, clothing and ggles.
【Respirators】Wear positive pressure self-contained breathing apparatus (SCBA).

Fire Fighting Measures
【Fire Fighting】The temperature of the substance must be maintained at or below the Control Temperature at all times. SMALL FIRES: Water spray or fog is preferred; if water not available use dry chemical, carbon dioxide or regular foam. LARGE FIRES: Flood fire area with water from a distance. Use water spray or fog; do not use straight streams. Move containers from fire area if you can do it without risk. Do not move car or vehicle if car has been exposed to heat. Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. BEWARE OF POSSIBLE CONTAINER EXPLOSION. ALWAYS stay away from tanks engulfed in fire. For massive fire, use unmanned hose holders or monitor nozzles; if this is impossible, withdraw from area and let fire burn.
【Fire Potential】May explode from heat, contamination or loss of temperature control. Particularly sensitive to temperature rises.

Accidental Release Measures
【Small spills/leaks】ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Keep combustibles (wood, paper, oil, etc.) away from spilled material. Do not touch or walk through spilled material. Stop leak if you can do it without risk. SMALL SPILLS: Take up with inert, damp, noncombustible material using clean non-sparking tools and place into loosely covered plastic containers for later disposal.

Stability and Reactivity
【Stability】No data.
【Incompatibilities】Strong acids, strong bases, strong oxidizers, strong reducing agents.
【Decomposition】Decomposition products are flammable.
【Combustion Products】Fire may produce irritating, corrosive and/or toxic gases.

Transport Information
【UN Number】2143, 2888
【Hazard Class】5.2