PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dinitrotoluene, 2,4- | 121-14-2 | 1600 |
17.00
13.00
4.01
11.01
15.02
4.08
7.01
11.00
4.07
3.08
|
|||||||||
| Formula | Synonyms | |||||||||||
| C7H6N2O4 | DINITROTOLUENES, MOLTEN, 1-METHYL-2, 4-DINITROBENZENE, 1-METHYL-2,4-DINITROBENZENE, 2,4-DINITROTOLUENE, 2,4-DINITROTOLUOL, 2,4-DNT, 4-METHYL-1,3-DINITROBENZENE, 6-METHYL-1,3-DINITROBENZENE, DINITROTOLUÈNES, FONDUS (DOT FRENCH), DINITROTOLUENOS, FUNDIDOS (DOT SPANISH), DNT, NCI-C01865, RCRA WASTE NUMBER U105, TOLUENE, 2,4-DINITRO- | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 182.13 | S | 70.5 | 22 | 1.3208 @ 71°C |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.60 | 8.8 | 53 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0.081 | 1.2 | 7.1 |
Technical Basis
A review of available sources identified rat and mouse oral LD50, and TLV-TWA for mixed isomers of dinitrotoluene (CASRN: 25321-14-6). Data sources were selected according to the hierarchy listed in Table 3.1. Toxicity data were selected according to type of exposure, species, and route according to the hierarchies stated in Sections 3.3.1, 3.3.2, and evaluated using factors in Tables 3.2, 3.3, and 3.4. The rat oral LD50 was selected as the TEEL-3 basis. TEEL-2 and TEEL-1 values were derived according to Table. 3.5.
• TEEL-1 = TLV-TWA x 3 (0.2 mg/m3, dinitrotoluene mixed isomers, CASRN: 25321-14-6)
• TEEL-2 = TEEL-3/6
• TEEL-3 = Rat oral LD50 (268 mg/kg)
This review generated TEEL values inconsistent with those in Rev. 29A. The Rev. 29A TEEL-3 was a IDLH (1994) for mixed isomers of dinitrotoluene, while the current TEEL-3 basis is a rat oral LD50 for the chemical of interest, 2,4-dinitrotoleune. The Rev. 29A TEEL-2 basis was a dog oral LDLo that was not found in current research. The Rev. 29A and current TEEL-1 basis are consistent.
• TEEL-1 = TLV-TWA x 3 (0.2 mg/m3, dinitrotoluene mixed isomers, CASRN: 25321-14-6)
• TEEL-2 = TEEL-3/6
• TEEL-3 = Rat oral LD50 (268 mg/kg)
This review generated TEEL values inconsistent with those in Rev. 29A. The Rev. 29A TEEL-3 was a IDLH (1994) for mixed isomers of dinitrotoluene, while the current TEEL-3 basis is a rat oral LD50 for the chemical of interest, 2,4-dinitrotoleune. The Rev. 29A TEEL-2 basis was a dog oral LDLo that was not found in current research. The Rev. 29A and current TEEL-1 basis are consistent.
References
https://www.cdc.gov/niosh/idlh/25321146.html
National Technical Information Service., PB214-270. Retrieved from https://pubchem.ncbi.nlm.nih.gov/compound/8461
https://www.osha.gov/chemicaldata/324