PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chloroacetic acid; (Monochloroacetic acid) | 79-11-8 | 1751 |
14.01
4.01
11.01
15.02
4.08
4.05
7.01
11.00
4.09
4.06
|
|||||||||
| Formula | Synonyms | |||||||||||
| C2H3ClO2 | CHLOROACETIC ACID, LIQUID, ACIDE CHLORACÉTIQUE, EN SOLUTION (DOT FRENCH), ACIDE CHLORACÉTIQUE, LIQUIDE (DOT FRENCH), ACIDO CLOROACÉTICO, LÍQUIDO (DOT SPANISH), ACIDO CLOROACÉTICO, SOLUCIÓN (DOT SPANISH), CHLORACETIC ACID, CHLOROACETIC ACID, CHLOROACETIC ACID (80% OR LESS), CHLOROACETIC ACID, SOLUTION, CHLOROETHANOIC ACID, MONOCHLOROACETIC ACID, CHLOROACETIC ACID, SOLID | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 94.5 | S | 63 | 189.3 | 7.5 | 78.4 | 1.4043 @ 40°C | 80000 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 1.5 | 6.6 | 40 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 5.8 | 26 | 150 |
Technical Basis
A review of available sources identified exposure limits (AEGL-2, TLV-TWA) and acute toxicity data (LC50, LD50) for several species and routes. The AEGL-2 was selected as the TEEL-2 due to its priority among the emergency exposure limits (Section 1). Acute toxicity data was evaluated as TEEL-3 bases; however, these resulted in TEEL-3 < TEEL-2. Instead, The TEEL-3 value was derived according to Table 3.5. The TLV-TWA was selected as the TEEL-1 basis.
• TEEL-1 = TLV-TWA (0.5 ppm) x 3
• TEEL-2 = AEGL-2
• TEEL-3 = TEEL-2 x 6
This review generated TEEL-1 and TEEL-2 ppm values consistent Rev. 29A. Minor differences in TEEL-2 mg/m3 may be due to rounding. The Rev. 29A TEEL-3 was a rat LDLo not identified during this review; instead, the TEEL-3 was derived from the TEEL-2.
• TEEL-1 = TLV-TWA (0.5 ppm) x 3
• TEEL-2 = AEGL-2
• TEEL-3 = TEEL-2 x 6
This review generated TEEL-1 and TEEL-2 ppm values consistent Rev. 29A. Minor differences in TEEL-2 mg/m3 may be due to rounding. The Rev. 29A TEEL-3 was a rat LDLo not identified during this review; instead, the TEEL-3 was derived from the TEEL-2.
References
AEGL-2 value and chemical information retrieved from: https://www.epa.gov/aegl/monochloroacetic-acid-results-aegl-program
Acute toxicity data: https://pubchem.ncbi.nlm.nih.gov/compound/Chloroacetic-acid
Exposure limits: https://www.osha.gov/chemicaldata/952