PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chloroperoxybenzoic acid, 3- | 937-14-4 | 2755 |
15.01
11.01
15.02
3.11
|
|||||||||
| Formula | Synonyms | |||||||||||
| C7H5ClO3 | 3-CHLOROPEROXYBENZOIC ACID, 3-CHLOROBENZENECARBOPEROXOIC ACID, 3-CHLOROPERBENZOIC ACID, ACIDE CHLORO-3 PEROXYBENZOÏQUE (DOT FRENCH), ACIDO 3-CLOROPEROXIBENZOICO (DOT SPANISH), M-CHLOROBENZOYL HYDROPEROXIDE, M-CHLOROPERBENZOIC ACID, M-CHLOROPEROXOBENZOIC ACID, M-CHLOROPEROXYBENZOIC ACID, MCPBA, PEROXYBENZOIC ACID, M-CHLORO- | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 172.57 | S |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 5.4 | 60 | 360 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.77 | 8.5 | 51 |
Technical Basis
A review of limited sources identified rat oral LD50 toxicity data and GHS health hazard ratings for 3-chloroperoxybenzoic acid. Data sources were selected according to the hierarchy listed in Table 3.1. Reported GHS health hazard ratings (H314, H317, and H318, Category 1; H315 and H319, Category 2, H335, Category 3) indicate a mid to high-level hazard, ranging between an HHR=3 and HHR=2 (79 mg/m3 and 790 mg/m3, respectively). Analysts selected the rat oral L LD50 as the TEEL-3 basis and evaluated using factors in Tables 3.2, 3.3, and 3.4. The resulting TEEL is within the GHS analysis range. TEEL-2 and TEEL-1 values were derived according to Table 3.5.
• PAC-1 = TEEL-1 = TEEL-2/11
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = Rat oral LD50 (1807 mg/kg)
This review generated PAC values inconsistent with Rev. 29A. The Rev. 29A TEEL-1 basis was a TLV-TWA for particles not otherwise specified (Section 3.5.2), from which the TEEL-2 and TEEL-3 were derived (Table 3.5). The current TEEL-3 basis is acute toxicity data, rat oral LD50, from which TEEL-2 and TEEL-1 were derived (Table 3.5).
• PAC-1 = TEEL-1 = TEEL-2/11
• PAC-2 = TEEL-2 = TEEL-3/6
• PAC-3 = TEEL-3 = Rat oral LD50 (1807 mg/kg)
This review generated PAC values inconsistent with Rev. 29A. The Rev. 29A TEEL-1 basis was a TLV-TWA for particles not otherwise specified (Section 3.5.2), from which the TEEL-2 and TEEL-3 were derived (Table 3.5). The current TEEL-3 basis is acute toxicity data, rat oral LD50, from which TEEL-2 and TEEL-1 were derived (Table 3.5).
References
Chemical information: https://pubchem.ncbi.nlm.nih.gov/compound/3-Chloroperbenzoic-acid.
Rat oral LD50: https://echa.europa.eu/registration-dossier/-/registered-dossier/27379/7/3/2