Dioxane |
Synonyms & Trade Names Diethylene dioxide; Diethylene ether; Dioxan; p-Dioxane; 1,4-Dioxane |
CAS No. 123-91-1 |
RTECS No. JG8225000 |
DOT ID & Guide 1165 127 |
FormulaC4H8O2 |
Conversion 1 ppm = 3.60 mg/m3 |
IDLH Ca [500 ppm]
See: 123911 |
Exposure Limits NIOSH REL: Ca C 1 ppm (3.6 mg/m3) [30-minute] See Appendix A
OSHA PEL†: TWA 100 ppm (360 mg/m3) [skin] |
Measurement Methods
NIOSH 1602;
OSHA 7
See: NMAM or OSHA Methods |
Physical Description Colorless liquid or solid (below 53°F) with a mild, ether-like odor. |
MW: 88.1 |
BP: 214°F |
FRZ: 53°F |
Sol: Miscible |
VP: 29 mmHg |
IP: 9.13 eV |
Sp.Gr: 1.03 |
Fl.P: 55°F |
UEL: 22% |
LEL: 2.0% |
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| Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F. |
Incompatibilities & Reactivities Strong oxidizers, decaborane, triethynyl aluminum |
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact |
Symptoms irritation eyes, skin, nose, throat; drowsiness, headache; nausea, vomiting; liver damage; kidney failure; [potential occupational carcinogen] |
Target Organs Eyes, skin, respiratory system, liver, kidneys |
Cancer Site[in animals: lung, liver & nasal cavity tumors] |
Personal Protection/Sanitation (See protection codes)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet (flammable)
Change: No recommendation
Provide: Eyewash, Quick drench |
First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water wash promptly
Breathing: Respiratory support
Swallow: Medical attention immediately |
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 |
| See also: INTRODUCTION See ICSC CARD: 0041 See MEDICAL TESTS: 0090 |
