THIRAM†
| CAS # | 137-26-8 |
|---|---|
| Formula |
C₆H₁₂N₂S₄ |
| Synonyms |
bis(dimethylthiocarbamoyl) disulfide; tetramethylthiuram disulfide |
| Physical description | Colorless to yellow, crystalline solid with a characteristic odor. | ||
|---|---|---|---|
| Boiling point | 264°F at 20 mmHg | Molecular weight | 240.44 |
| Freezing point/melting point | 312°F | Vapor pressure | 0.000008 mmHg |
| Flash point | 280°F | Vapor density | |
| Specific gravity | 1.43 | Ionization potential | |
| Lower explosive limit (LEL) | Upper explosive limit (UEL) | ||
| NFPA health rating | NFPA fire rating | ||
| NFPA reactivity rating | NFPA special instruction | ||
| Vapor hazard ratio (VHR) | |||
| Historical exceedance percentage | |||
| Target organs | |||
| Analyte code (IMIS no.) | 2427 | ||
|---|---|---|---|
| Sampling group | |||
| Sampler/Sampling media | PTFE filter, 1 µm [SKC 225-2705] | ||
| Sampling time* | |||
| Sampling volume (TWA)* | 10-400 L |
||
| Sampling flow rate (TWA)* | 1-4 L/min |
||
| Sampling volume (STEL/Peak/C)* | |||
| Sampling flow rate (STEL/Peak/C)* | |||
| Analytical method instruments | HPLC-UV | ||
| Method reference | NIOSH 5005 (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 |
5 mg/m³ |
REL-TWA |
5 mg/m³ |
TLV-TWA |
0.05 mg/m³ (inhalable fraction and vapor) [2007] |
PEL-TWA |
5 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:
dermal sensitization (DSEN) |
Notes: | ||||
| Health factors: See NIH-NLM PubChem. | IDLH |
100 mg/m³ |
|||||
| Carcinogenic classifications: IARC-3, TLV-A4 | Notes: | ||||||
| AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: | |||||||
Additional Resources and Literature References
|
NOAA: CAMEO Chemicals - Thiram NIOSH: Pocket Guide to Chemical Hazards - Thiram Literature References
|
Last Updated Date : 01/28/2021