Dioxane
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CAS
123-91-1
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C4H8O2
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RTECS
JG8225000
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Synonyms & Trade Names
Diethylene dioxide; Diethylene ether; Dioxan; p-Dioxane; 1,4-Dioxane
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DOT ID & Guide
1165 / 127
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Exposure
Limits
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NIOSH REL: Ca C 1 ppm (3.6 mg/m3) [30-minute] See Appendix A
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OSHA PEL†: TWA 100 ppm (360 mg/m3) [skin]
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IDLH
Ca [500 ppm]
See: 123911
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Conversion
1 ppm = 3.60 mg/m3
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Physical Description
Colorless liquid or solid (below 53°F) with a mild, ether-like odor.
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MW: 88.1
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BP: 214°F
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FRZ: 53°F
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Sol: Miscible
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VP: 29 mmHg
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IP: 9.13 eV
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Sp.Gr: 1.03
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Fl.P: 55°F
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UEL: 22%
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LEL: 2.0%
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Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F.
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Incompatibilities & Reactivities
Strong oxidizers, decaborane, triethynyl aluminum
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Measurement Methods
NIOSH 1602; OSHA 7
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: Eyewash, Quick drench
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water wash promptly
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 organic vapor canister/Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection
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Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
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Symptoms
Irritation eyes, skin, nose, throat; drowsiness, headache; nausea, vomiting; liver damage; kidney failure; [potential occupational carcinogen]
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Target Organs
Eyes, skin, respiratory system, liver, kidneys
Cancer Site
[in animals: lung, liver & nasal cavity tumors]
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See also: INTRODUCTION
See ICSC CARD: 0041 See MEDICAL TESTS: 0090
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