PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Acetic anhydride | 108-24-7 | 1715 |
6.00
14.01
4.01
11.01
14.02
4.08
11.00
4.07
10.00
3.09
|
|||||||||
| Formula | Synonyms | |||||||||||
| C4H6O3 | ACETIC ANHYDRIDE, ACETIC ACID ANHYDRIDE, ACETIC ACID, ANHYDRIDE (9CI), ACETIC ANHYDRIDE (DOT), ACETIC OXIDE, ACETYL ACETATE, ACETYL ANHYDRIDE, ACETYL ETHER, ACETYL OXIDE, ANHÍDRIDO ACÉTICO (DOT SPANISH), ANHYDRIDE ACÉTIQUE (DOT FRENCH), ETHANOIC ANHYDRATE, ETHANOIC ANHYDRIDE | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 102.1 | L | -73.1 | 139.55 | 10 | 36 | 1.082 @ 20°C | 27000 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.50 | 15 | 100 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 2.1 | 63 | 420 |
Technical Basis
A review of available sources identified exposure limits (ERPGs, TWAs, STELs, IDLH, ceiling limits) and various acute toxicity data. The ERPGs were selected due to their priority among Protective Action Criteria (Section 1).
• PAC-1 = ERPG-1
• PAC-2 = ERPG-2
• PAC-3 = ERPG-3
This review generated PAC values consistent with Rev. 29A*.
• PAC-1 = ERPG-1
• PAC-2 = ERPG-2
• PAC-3 = ERPG-3
This review generated PAC values consistent with Rev. 29A*.
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/Acetic-Anhydride.
ERPGs: https://cameochemicals.noaa.gov/chemical/2276