DIURON
| CAS # | 330-54-1 |
|---|---|
| Formula |
C₉H₁₀Cl₂N₂O |
| Synonyms |
3-(3,4-dichlorophenyl)-1,1-dimethylurea; Direx®; Karmex® |
| Physical description | White, odorless, crystalline solid. | ||
|---|---|---|---|
| Boiling point | 356°F (decomposes) | Molecular weight | 233.1 |
| Freezing point/melting point | 316°F | Vapor pressure | 0.000000002 mmHg |
| Flash point | Vapor density | ||
| Specific gravity | 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.) | 2684 | ||
|---|---|---|---|
| Sampling group | |||
| Sampler/Sampling media | OSHA versatile sampler (OVS-2) - 13 mm XAD-2 tube (270/140 mg) with GFF enclosed [SKC 226-30-16] | ||
| Sampling time* | |||
| Sampling volume (TWA)* | 60 L |
||
| Sampling flow rate (TWA)* | 1 L/min |
||
| Sampling volume (STEL/Peak/C)* | |||
| Sampling flow rate (STEL/Peak/C)* | |||
| Analytical method instruments | HPLC-UV | ||
| Method reference | OSHA PV2097 (partially validated) | ||
| Notes | Protect the samples from light. |
||
| 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 | REL-TWA |
10 mg/m³ |
TLV-TWA |
10 mg/m³ [1974] |
PEL-TWA |
10 mg/m³ |
|
| PEL-STEL | REL-STEL | TLV-STEL | PEL-STEL | ||||
| PEL-C | REL-C | TLV-C | PEL-C | ||||
| Skin notation |
NA |
Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
|
Notes:
Not established |
Notes: | Notes: | Notes: | ||||
| Health factors: See NIH-NLM PubChem. | IDLH | ||||||
| Carcinogenic classifications: TLV-A4 | Notes: | ||||||
| AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: | |||||||
Additional Resources and Literature References
|
NOAA: CAMEO Chemicals - Diuron NIOSH: Pocket Guide to Chemical Hazards - Diuron Literature References
|
Last Updated Date : 12/28/2020