PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Trichloroacetaldehyde; (Chloral) | 75-87-6 | 2075 |
14.01
4.01
11.01
14.02
4.05
8.00
7.00
11.00
4.07
10.00
|
|||||||||
| Formula | Synonyms | |||||||||||
| C2HCl3O | TRICHLOROACETALDEHYDE, ACETALDEHYDE, TRICHLORO, ACETALDEHYDE, TRICHLORO-, ANHYDROUS CHLORAL, CHLORAL, ETHANAL, TRICHLORO-, CHLORAL, ANHYDROUS, INHIBITED, 2,2,2-TRICHLOROACETALDEHYDE, 2,2,2-TRICHLOROETHANAL, GRASEX, RCRA WASTE NUMBER U034, SPOROTAL 100 | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 147.39 | L | -57.5 | 97.8 | 75 | 33.8 | 1.512 @ 20°C |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.65 | 7.2 | 43 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 3.9 | 43 | 260 |
Technical Basis
A review of available sources was unable to identify exposure limits for this chemical, but toxicity data was available. A dog LC50 was selected as the TEEL-3 basis. TEEL-2 and TEEL-1 values were calculated from this TEEL-3, in accordance with guidelines in the handbook (see Table 3.5.)
TEEL-1 = TEEL-2 /11
TEEL-2 = TEEL-3 /6
TEEL-3 = Dog 4-hr LC50 (5900 mg/m3)
This review generated values that are consistent with Rev. 29A.
TEEL-1 = TEEL-2 /11
TEEL-2 = TEEL-3 /6
TEEL-3 = Dog 4-hr LC50 (5900 mg/m3)
This review generated values that are consistent with Rev. 29A.
References
https://pubchem.ncbi.nlm.nih.gov/compound/Chloral#section=Acute-Effects