CHLOROPICRIN (NITROTRICHLOROMETHANE)†
| CAS # | 76-06-2 |
|---|---|
| Formula |
CCl₃NO₂ |
| Synonyms |
nitrochloroform; nitrotrichloromethane; trichloronitromethane |
| Physical description | Colorless to faint-yellow, oily liquid with an intensely irritating odor. | ||
|---|---|---|---|
| Boiling point | 234°F | Molecular weight | 164.4 |
| Freezing point/melting point | -93°F | Vapor pressure | 18 mmHg |
| Flash point | Vapor density | 5.7 | |
| Specific gravity | 1.66 | Ionization potential | |
| Lower explosive limit (LEL) | Upper explosive limit (UEL) | ||
| NFPA health rating | 4 | NFPA fire rating | 0 |
| NFPA reactivity rating | 3 | NFPA special instruction | |
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Analyte code (IMIS no.) | 0675 |
|---|---|
| Sampling group | |
| Sampler/Sampling media | 2 XAD-4 tubes in series (80/40 mg) [SKC 226-93] |
| Sampling time* | 25 min |
| Sampling volume (TWA)* | 5 L |
| Sampling flow rate (TWA)* | 0.2 L/min |
| Sampling volume (STEL/Peak/C)* | |
| Sampling flow rate (STEL/Peak/C)* | |
| Analytical method instruments | GC-ECD |
| Method reference | OSHA PV2103 (partially validated) |
| Notes | Samples should be protected from light after sampling by covering them with the OSHA-21 form, or an opaque tape, such as masking tape. |
| 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 | Available |
| Device | Detector tube | Infrared spectrophotometer |
|---|---|---|
| Model/Type | Gastec 134 | Miran 1A & 1B |
|
Sampling information (see manufacturer instructions) |
1-60 ppm range | 0.1 ppm@11.5 µm |
|
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 |
0.1 ppm (0.7 mg/m³) |
REL-TWA |
0.1 ppm (0.7 mg/m³) |
TLV-TWA | PEL-TWA |
0.1 ppm (0.7 mg/m³) |
|
| PEL-STEL | REL-STEL | TLV-STEL | PEL-STEL | ||||
| PEL-C | REL-C | TLV-C | PEL-C | ||||
| Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
| Notes: | Notes: |
Notes:
Visit the ACGIH TLV site for specific data |
Notes: | ||||
| Health factors: See NIH-NLM PubChem. | IDLH |
2 ppm |
|||||
| Carcinogenic classifications: TLV-A4 | Notes: | ||||||
|
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
0.075 ppm/0.15 ppm/1.5 ppm |
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Additional Resources and Literature References
|
NOAA: CAMEO Chemicals - Chloropicrin NIOSH: Pocket Guide to Chemical Hazards - Chloropicrin Literature References
|
Last Updated Date : 05/03/2024