Chemical data sheet for:

TERT-BUTYL PEROXYBENZOATE, [TECHNICALLY PURE]

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Section 1 - Chemical Identifiers Section 4 - Physical Properties
Section 2 - Hazards Section 5 - Regulatory Information
Section 3 - Response Recommendations Section 6 - Alternate Chemical Names
Section 1 - Chemical Identifiers
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CAS NumberUN/NA NumberSTCC NumberCHRIS Code
  • 614-45-9
  • 2098
none none
NFPA 704:
3
2 3
ox
      DOT Hazard Label:
  • ORGANIC PEROXIDE
General Description
PHYSICAL DESCRIPTION: Clear, colorless to slightly yellow liquid with a mild, aromatic odor. Also stored and transported as a mixture with inert solids and as a solvent slurry, to mitigate the explosion hazard. (NOAA Reactivity 2007)
Section 2 - Hazards
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Reactivity Alerts
Air & Water Reactions
Insoluble in water.
Fire Hazard
May explode from heat or contamination. May ignite combustibles (wood, paper, oil, clothing, etc.). 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. (DOT, 2000)
Health Hazard
Fire may produce irritating, corrosive and/or toxic gases. Ingestion or contact (skin, eyes) with substance may cause severe injury or burns. Runoff from fire control or dilution water may cause pollution. (DOT, 2000)
Reactivity Profile
TERT-BUTYL PEROXYBENZOATE explodes with great violence when rapidly heated to a critical temperature; pure form is shock sensitive and detonable [Bretherick 1979 p. 602]. Upon contact with organic matter, t-butyl peroxybenzoate can ignite or give rise to an explosion Haz. Chem. Data 1973 p. 79). (NOAA REACTIVITY, 2007)
Belongs to reactive group(s)
Section 3 - Response Recommendations
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Fire Fighting
SMALL FIRES: Water spray or fog is preferred; if water not available use dry chemical, CO2 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 cargo or vehicle if cargo 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. 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. (DOT, 2000)
Non-Fire Response
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 damaged containers or spilled material unless wearing appropriate protective clothing. Keep substance wet using water spray. 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.

LARGE SPILLS: Wet down with water and dike for later disposal. Prevent entry into waterways, sewers, basements or confined areas. DO NOT CLEAN-UP OR DISPOSE OF, EXCEPT UNDER SUPERVISION OF A SPECIALIST. (DOT, 2000)
Protective Clothing
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. (NTP, 1992)
First Aid
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.

SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.

INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing.

INGESTION: DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital. (NTP, 1992)
Section 4 - Physical Properties
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Molecular Formula:
  • C11H14O3

Flash Point: 200.0 ° F (NTP, 1992)

Lower Explosive Limit: data unavailable

Upper Explosive Limit: data unavailable

Auto Ignition Temperature: data unavailable

Melting Point: 46.0 ° F (NTP, 1992)

Vapor Pressure: 0.33 mm Hg at 122.0 ° F (NTP, 1992)

Vapor Density: data unavailable

Specific Gravity: 1.04 at 77.0 ° F (NTP, 1992)

Boiling Point: 234.0 ° F at 760 mm Hg (NTP, 1992)

Molecular Weight: 194.25 (NTP, 1992)

Water Solubility: <1mg/mL mg/mL at 68° F (NTP, 1992)

AEGL: data unavailable

ERPG: use TEEL data

TEEL-1 TEEL-2 TEEL-3
25.0 mg/m3 150.0 mg/m3 400.0 mg/m3
(TEEL, 2003)

IDLH: data unavailable

Section 5 - Regulatory Information
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Regulatory Names
No information available.

CAA RMP: Not a regulated chemical.

CERCLA: Not a regulated chemical.

EPCRA 302 EHS: Not a regulated chemical.

TRI (EPCRA 313): Not a regulated chemical.

RCRA chemical code: none

Section 6 - Alternate Chemical Names
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