DIBUTYL PHOSPHATE†
| CAS # | 107-66-4 |
|---|---|
| Formula |
(C₄H₉O)₂(OH)PO |
| Synonyms |
dibutyl acid o-phosphate; di-n-butyl hydrogen phosphate; dibutyl phosphoric acid |
| Physical description | Pale-amber, odorless liquid. | ||
|---|---|---|---|
| Boiling point | 212°F (decomposes) | Molecular weight | 210.2 |
| Freezing point/melting point | Vapor pressure | 1 mmHg (approx) | |
| Flash point | Vapor density | ||
| Specific gravity | 1.06 | 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.) | 0863 | ||
|---|---|---|---|
| Sampling group | |||
| Sampler/Sampling media | PTFE filter, 1 µm [SKC 225-2705] | ||
| Sampling time* | |||
| Sampling volume (TWA)* | 50-250 L |
||
| Sampling flow rate (TWA)* | 1-3 L/min |
||
| Sampling volume (STEL/Peak/C)* | |||
| Sampling flow rate (STEL/Peak/C)* | |||
| Analytical method instruments | GC | ||
| Method reference | NIOSH 5017 (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 |
1 ppm (5 mg/m³) |
REL-TWA |
1 ppm (5 mg/m³) |
TLV-TWA |
5 mg/m³ (inhalable fraction and vapor) [2008] |
PEL-TWA |
1 ppm (5 mg/m³) |
| PEL-STEL | REL-STEL |
2 ppm (10 mg/m³) |
TLV-STEL |
2 ppm (17 mg/m³) |
PEL-STEL |
2 ppm (10 mg/m³) |
|
| PEL-C | REL-C | TLV-C | PEL-C | ||||
| Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
| Notes: | Notes: | Notes: | Notes: | ||||
| Health factors: See NIH-NLM PubChem. | IDLH |
30 ppm |
|||||
| Carcinogenic classifications: Not listed | Notes: | ||||||
| AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: | |||||||
Additional Resources and Literature References
|
NOAA: CAMEO Chemicals - Dibutyl phosphate NIOSH: Pocket Guide to Chemical Hazards - Dibutyl phosphate Literature References
|
Last Updated Date : 12/22/2020