Methyl ethyl ketone peroxide |
Synonyms & Trade Names 2-Butanone peroxide, Ethyl methyl ketone peroxide, MEKP, MEK peroxide, Methyl ethyl ketone hydroperoxide |
CAS No. 1338-23-4 |
RTECS No. EL9450000 |
DOT ID & Guide |
FormulaC8H16O4 |
Conversion 1 ppm = 7.21 mg/m3 |
IDLH N.D.
See: IDLH INDEX |
Exposure Limits NIOSH REL: C 0.2 ppm (1.5 mg/m3)
OSHA PEL†: none |
Measurement Methods
NIOSH 3508;
OSHA 77
See: NMAM or OSHA Methods |
Physical Description Colorless liquid with a characteristic odor. [Note: Explosive decomposition occurs at 230°F.] |
MW: 176.2 |
BP: 244°F (Decomposes) |
FRZ: ? |
Sol: Soluble |
VP: ? |
IP: ? |
| Sp.Gr(59°F): 1.12 |
Fl.P(oc): 125-200°F (60% MEKP) |
UEL: ? |
LEL: ? |
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| Combustible Liquid |
Incompatibilities & Reactivities Organic materials, heat, flames, sunlight, trace contaminants [Note: A strong oxidizing agent. Pure MEKP is shock sensitive. Commercial product is diluted with 40% dimethyl phthalate, cyclohexane peroxide, or diallyl phthalate to reduce sensitivity to shock.] |
Exposure Routes inhalation, ingestion, skin and/or eye contact |
Symptoms irritation eyes, skin, nose, throat; cough, dyspnea (breathing difficulty), pulmonary edema; blurred vision; blisters, scars skin; abdominal pain, vomiting, diarrhea; dermatitis; in animals: liver, kidney damage |
Target Organs Eyes, skin, respiratory system, liver, kidneys |
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Personal Protection/Sanitation (See protection codes)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: No recommendation
Provide: Eyewash, Quick drench |
First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately |
Respirator Recommendations Not available.
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 1028
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