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DIOXANE (DIETHYLENE DIOXIDE) (1,4-DIOXANE)†
| CAS # | 123-91-1 |
|---|---|
| Formula |
C₄H₈O₂ |
| Synonyms |
diethylene ether; dioxan; p-dioxane; 1,4-diethyleneoxide |
| Physical description | Colorless liquid or solid (below 53°F) with a mild, ether-like odor. | ||
|---|---|---|---|
| Boiling point | 214°F | Molecular weight | 88.1 |
| Freezing point/melting point | 53°F | Vapor pressure | 29 mmHg |
| Flash point | 55°F | Vapor density | 3.03 |
| Specific gravity | 1.03 | Ionization potential | 9.13 eV |
| Lower explosive limit (LEL) | 2% | Upper explosive limit (UEL) | 22% |
| NFPA health rating | 2 | NFPA fire rating | 3 |
| NFPA reactivity rating | 1 | NFPA special instruction | |
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Analyte code (IMIS no.) | 1010 |
|---|---|
| Sampling group | |
| Sampler/Sampling media | CSC tube (100/50 mg) [SKC 226-01] |
| Sampling time* | |
| Sampling volume (TWA)* | 0.5-15 L |
| Sampling flow rate (TWA)* | 0.01-0.2 L/min |
| Sampling volume (STEL/Peak/C)* | |
| Sampling flow rate (STEL/Peak/C)* | |
| Analytical method instruments | GC-FID |
| Method reference | NIOSH 1602 (fully validated) |
| Notes | |
| Special requirements |
* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.
| Wipe Sampler/Sampling media | Wipe with charcoal pad, seal in glass vial for shipment. [3M 3500] |
|---|---|
| Bulk Method |
| Device | |||||
|---|---|---|---|---|---|
| Model/Type | |||||
|
Sampling information (see manufacturer instructions) |
|
OSHA PEL
8-hour TWA (ST) STEL (C) Ceiling Peak |
NIOSH REL
Up to 10-hour TWA (ST) STEL (C) Ceiling |
ACGIH TLV©
8-hour TWA (ST) STEL (C) Ceiling |
|||||
|---|---|---|---|---|---|---|---|
| PEL-TWA |
100 ppm (360 mg/m³) |
REL-TWA | TLV-TWA |
20 ppm [1996] |
PEL-TWA |
0.28 ppm (1 mg/m³) |
|
| PEL-STEL | REL-STEL | TLV-STEL | PEL-STEL | ||||
| PEL-C | REL-C |
1 ppm (3.6 mg/m³) [30 minutes] |
TLV-C | PEL-C | |||
| Skin notation |
Y |
Skin notation |
N |
Skin notation |
Y |
Skin notation |
Y |
| Notes: |
Notes:
CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A |
Notes: | Notes: | ||||
| Health factors: See NIH-NLM PubChem. | IDLH |
500 ppm |
|||||
| Carcinogenic classifications: IARC-2B, NIOSH-Ca, NTP-R, TLV-A3, EPA-L |
Notes:
Ca |
||||||
| AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: | |||||||
Additional Resources and Literature References
|
NOAA: CAMEO Chemicals - Dioxane NIOSH: Pocket Guide to Chemical Hazards - Dioxane Literature References
|
Last Updated Date : 12/28/2020