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ENDRIN†
| CAS # | 72-20-8 |
|---|---|
| Formula |
C₁₂H₈Cl₆O |
| Synonyms |
1,2,3,4,10,10-hexachloro-6,7-epoxy-1,4,4a,5,6,7,8,8a-octahydro-1,4-endo,endo-5,8-dimethanonaphthalene; hexadrin |
| Physical description | Colorless to tan, crystalline solid with a mild, chemical odor. | ||
|---|---|---|---|
| Boiling point | 245°C (decomposes) | Molecular weight | 380.9 |
| Freezing point/melting point | 473°F (decomposes) | Vapor pressure | low |
| Flash point | 80°F (commercial product may contain flammable liquid) | Vapor density | |
| Specific gravity | 1.7 | Ionization potential | |
| Lower explosive limit (LEL) | 1.1% (commercial product) | Upper explosive limit (UEL) | 7% (commercial product) |
| NFPA health rating | 2 | NFPA fire rating | 0 |
| NFPA reactivity rating | 0 | NFPA special instruction | |
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Analyte code (IMIS no.) | 1017 |
|---|---|
| Sampling group | |
| Sampler/Sampling media | 0.8 µm Cellulose ester membrane + Chromosorb 102, (100/50 mg) [SKC 225-5 & SKC 226-107] |
| Sampling time* |
|
| Sampling volume (TWA)* |
12-400 L |
| Sampling flow rate (TWA)* |
0.5-1 L/min |
| Sampling volume (STEL/Peak/C)* |
|
| Sampling flow rate (STEL/Peak/C)* |
|
| Analytical method instruments | GC-ECD |
| Method reference | NIOSH 5519 (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 |
|
|---|---|
| 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 |
0.1 mg/m³ |
REL-TWA |
0.1 mg/m³ |
TLV-TWA |
0.1 mg/m³ [1979] |
PEL-TWA |
0.1 mg/m³ |
| PEL-STEL |
|
REL-STEL |
|
TLV-STEL |
|
PEL-STEL |
|
| PEL-C |
|
REL-C |
|
TLV-C |
|
PEL-C |
|
| Skin notation |
Y |
Skin notation |
Y |
Skin notation |
Y |
Skin notation |
Y |
| Notes: |
Notes:
|
Notes:
|
Notes:
|
||||
| Health factors: See NIH-NLM PubChem. | IDLH |
2 mg/m³ |
|||||
| Carcinogenic classifications: IARC-3, TLV-A4, EPA-D |
Notes:
|
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|
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
|
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Additional Resources and Literature References
|
NOAA: CAMEO Chemicals - Endrin NIOSH: Pocket Guide to Chemical Hazards - Endrin Literature References
|
Last Updated Date : 01/29/2021