PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Trimethyl phosphite | 121-45-9 | 2329 |
14.01
4.01
11.01
14.02
7.01
8.00
11.00
4.06
4.10
4.07
|
|||||||||
| Formula | Synonyms | |||||||||||
| C3H9O3P | TRIMETHYL PHOSPHITE, FOSFITO DE TRIMETILO (DOT SPANISH), METHYL PHOSPHITE, PHOSPHITE DE TRIMÉTHYLE (DOT FRENCH), PHOSPHOROUS ACID, TMP, TRIMETHOXYPHOSPHINE, TRIMETHYL ESTER, TRIMETHYL ESTER OF PHOSPHOROUS ACID | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 124.09 | L | -78 | 1.046 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 6.1 | 61 | 310 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 31 | 310 | 1600 |
Technical Basis
A review of available sources identified AEGLs for this chemical. The AEGLs were selected as the TEELs due to their priority among the emergency exposure limits (Section 1).
• TEEL-1 = AEGL-1
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL values consistent with Rev. 29A*.
• TEEL-1 = AEGL-1
• TEEL-2 = AEGL-2
• TEEL-3 = AEGL-3
This review generated TEEL values consistent with Rev. 29A*.
References
AEGLs (Table 1) and chemical information (Table 2) retrieved from: https://www.epa.gov/aegl/trimethyl-phosphite-result-aegl-program