Propylene oxide
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CAS
75-56-9
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C3H6O
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RTECS
TZ2975000
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Synonyms & Trade Names
1,2-Epoxy propane; Methyl ethylene oxide; Methyloxirane; Propene oxide; 1,2-Propylene oxide
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DOT ID & Guide
1280 / 127P
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Exposure
Limits
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NIOSH REL: Ca See Appendix A
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OSHA PEL†: TWA 100 ppm (240 mg/m3)
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IDLH
Ca [400 ppm]
See: 75569
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Conversion
1 ppm = 2.38 mg/m3
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Physical Description
Colorless liquid with a benzene-like odor. [Note: A gas above 94°F.]
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MW: 58.1
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BP: 94°F
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FRZ: -170°F
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Sol: 41%
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VP: 445 mmHg
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IP: 9.81 eV
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Sp.Gr: 0.83
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Fl.P: -35°F
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UEL: 36%
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LEL: 2.3%
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Class IA Flammable Liquid: Fl.P. below 73°F and BP below 100°F.
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Incompatibilities & Reactivities
Anhydrous metal chlorides; iron; strong acids, caustics & peroxides [Note: Polymerization may occur due to high temperatures or contamination with alkalis, aqueous acids, amines & acidic alcohols.]
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Measurement Methods
NIOSH 1612; OSHA 88
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet (flammable)
Change: No recommendation
Provide: Quick drench
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water flush immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
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Respirator Recommendations
NIOSH
At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus
Escape:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted canister providing protection against the compound of concern/Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection
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Exposure Routes
inhalation, ingestion, skin and/or eye contact
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Symptoms
Irritation eyes, skin, respiratory system; skin blisters, burns; [potential occupational carcinogen]
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Target Organs
Eyes, skin, respiratory system
Cancer Site
[in animals: nasal tumors]
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See also: INTRODUCTION
See ICSC CARD: 0192 |
