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Chemical Datasheet
ACETYL PEROXIDE SOLUTION, [<= 25% PEROXIDE] |
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Chemical Identifiers
CAS Number |
UN/NA Number |
DOT Hazard Label |
USCG CHRIS Code |
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NIOSH Pocket Guide |
International Chem Safety Card |
none
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none
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NFPA 704
General Description
Colorless liquid with a sharp odor. Consists of a solution of acetyl peroxide in dimethyl phthalate. Sinks in water.
Hazards
Reactivity Alerts
Air & Water Reactions
No rapid reaction with air. No rapid reaction with water.
Fire Hazard
Behavior in Fire: May explode. Burns with accelerating intensity. (USCG, 1999)
Health Hazard
Contact with liquid causes irritation of eyes and skin. If ingested, irritates mouth and stomach. (USCG, 1999)
Reactivity Profile
Peroxides, such as ACETYL PEROXIDE, are good oxidizing agents. Organic compounds can ignite on contact with concentrated peroxides. Strongly reduced material such as sulfides, nitrides, and hydrides may react explosively with peroxides. There are few chemical classes that do not at least produce heat when mixed with peroxides. Many produce explosions or generate gases (toxic and nontoxic). Generally, dilute solutions of peroxides (<70%) are safe, but the presence of a catalyst (often a transition metal such as cobalt, iron, manganese, nickel, or vanadium) as an impurity may even then cause rapid decomposition, a buildup of heat, and even an explosion. Solutions of peroxides often become explosive when evaporated to dryness or near-dryness.
Belongs to the Following Reactive Group(s)
- Peroxides, Organic
- Water and Aqueous Solutions
Potentially Incompatible Absorbents
Use caution: Liquids with this reactive group classification have been
known to react with the
absorbents
listed below.
- Cellulose-Based Absorbents
- Expanded Polymeric Absorbents
Response Recommendations
Isolation and Evacuation
Excerpt from 148
[Organic Peroxides (Heat and Contamination Sensitive / Temperature Controlled)]:
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)
Firefighting
Fire Extinguishing Agents: Water, dry chemical, carbon dioxide (USCG, 1999)
Non-Fire Response
Excerpt from 148
[Organic Peroxides (Heat and Contamination Sensitive / Temperature Controlled)]:
DO NOT allow the substance to warm up. Use a coolant agent such as dry ice or ice (wear thermal protective gloves). If this is not possible or none can be obtained, evacuate the area immediately. ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from 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 SPILL: Pick up with inert, damp, non-combustible material using clean, non-sparking tools and place into loosely covered plastic containers for later disposal.
LARGE SPILL: Dike far ahead of liquid spill 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. (ERG, 2020)
Protective Clothing
Protective goggles; rubber apron and gloves. (USCG, 1999)
DuPont Tychem® Suit Fabrics
No information available.
First Aid
EYES: wash with plenty of water and get medical attention.
SKIN: wash with plenty of soap and water.
INGESTION: induce vomiting and call a physician. (USCG, 1999)
Physical Properties
Flash Point:
113°F
(USCG, 1999)
Lower Explosive Limit (LEL): data unavailable
Upper Explosive Limit (UEL): data unavailable
Autoignition Temperature:
Explodes
(USCG, 1999)
Melting Point:
17°F
(USCG, 1999)
Vapor Pressure: data unavailable
Vapor Density (Relative to Air): data unavailable
Specific Gravity:
1.2
at 68°F
(USCG, 1999)
- Denser than water; will sink
Boiling Point: data unavailable
Molecular Weight:
Mixture
(USCG, 1999)
Water Solubility: data unavailable
Ionization Energy/Potential: data unavailable
IDLH: data unavailable
AEGLs (Acute Exposure Guideline Levels)
No AEGL information available.
ERPGs (Emergency Response Planning Guidelines)
No ERPG information available.
PACs (Protective Action Criteria)
Chemical |
PAC-1 |
PAC-2 |
PAC-3 |
Diacetyl peroxide; (Acetyl peroxide) (110-22-5)
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1.2 mg/m3 |
13 mg/m3 |
79 mg/m3 |
(DOE, 2018)
Regulatory Information
EPA Consolidated List of Lists
No regulatory information available.
CISA Chemical Facility Anti-Terrorism Standards (CFATS)
No regulatory information available.
OSHA Process Safety Management (PSM) Standard List
Chemical Name |
CAS Number |
Threshold Quantity (TQ) |
Diacetyl Peroxide (Concentration >70%) |
110-22-5 |
5000 pounds |
(OSHA, 2019)
Alternate Chemical Names
- ACETYL PEROXIDE SOLUTION
- ACETYL PEROXIDE SOLUTION, [<= 25% PEROXIDE]
- DIACETYL PEROXIDE SOLUTION
- DIACETYL PEROXIDE SOLUTION, [<= 25% PEROXIDE]