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P-DICHLOROBENZENE†
| CAS # | 106-46-7 |
|---|---|
| Formula |
C₆H₄Cl₂ |
| Synonyms |
p-DCB; 1,4-DCB; 1,4-dichlorobenzene; Dichlorocide; Paracide |
| Physical description | Colorless or white crystalline solid with a mothball-like odor. | ||
|---|---|---|---|
| Boiling point | 345°F | Molecular weight | 147.0 |
| Freezing point/melting point | 128°F | Vapor pressure | 1.3 mmHg |
| Flash point | 150°F | Vapor density | 5.08 |
| Specific gravity | 1.458 | Ionization potential | 8.98 eV |
| Lower explosive limit (LEL) | 2.5% | Upper explosive limit (UEL) | |
| NFPA health rating | 2 | NFPA fire rating | 2 |
| NFPA reactivity rating | 0 | NFPA special instruction | |
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Analyte code (IMIS no.) | 0868 |
|---|---|
| Sampling group | |
| Sampler/Sampling media | CSC tube (100/50 mg) [SKC 226-01] |
| Sampling time* | |
| Sampling volume (TWA)* | 1-8 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 1003 (partially 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 | |
|---|---|
| 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 |
75 ppm (450 mg/m³) |
REL-TWA | TLV-TWA |
10 ppm [1990] |
PEL-TWA |
10 ppm (60 mg/m³) |
|
| PEL-STEL | REL-STEL | TLV-STEL | PEL-STEL |
110 ppm (675 mg/m³) |
|||
| PEL-C | REL-C | TLV-C | PEL-C |
200 ppm |
|||
| Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
| Notes: |
Notes:
CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION (LOQ 1.7 ppm). See Appendix A, NIOSH Potential Occupational Carcinogens. |
Notes: | Notes: | ||||
| Health factors: See NIH-NLM PubChem. | IDLH |
150 ppm |
|||||
| Carcinogenic classifications: IARC-2B, NIOSH-Ca, NTP-R, TLV-A3 |
Notes:
Ca |
||||||
| AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: | |||||||
Additional Resources and Literature References
|
NOAA: CAMEO Chemicals - P-Dichlorobenzene NIOSH: Pocket Guide to Chemical Hazards - p-Dichlorobenzene Literature References
|
Last Updated Date : 01/08/2021