PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cyclopropane | 75-19-4 | 1027 |
4.01
11.01
4.08
7.01
8.00
7.00
11.00
4.07
3.08
5.00
|
|||||||||
| Formula | Synonyms | |||||||||||
| C3.H6 | CYCLOPROPANE, CICLOPROPANO (DOT SPANISH), CYCLOPROPANE (DOT FRENCH), RC 270, TRIMETHYLENE, TRIMETHYLENE (CYCLIC), CYCLOPROPANE, LIQUEFIED, | |||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 42.09 | G | -126.6 | -33.5 | 5410 | 25 | 1.879 @ 0°C | 24000 |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 150 | 1600 | 9600 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 87 | 930 | 5600 |
Technical Basis
A review of limited sources did not find exposure limits but did identify a mouse 2-hr LCLo toxicity data. The LCLo was selected as the TEEL-3 basis. Analysts scaled the dose to a 60-minute equivalent exposure using the ten Berge equation (Section 3.3.4) and applied Table 3.4. TEEL-2 and TEEL-1 values were derived according to Table 3.5.
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL-3/6
• TEEL-3 = Mouse 2-hr LCLo (282000 mg/m3)
This review generated TEEL values that were consistent with those in Rev. 29A.
• TEEL-1 = TEEL-2/11
• TEEL-2 = TEEL-3/6
• TEEL-3 = Mouse 2-hr LCLo (282000 mg/m3)
This review generated TEEL values that were consistent with those in Rev. 29A.
References
National Center for Biotechnology Information (2023). PubChem Compound Summary for CID 6351, Cyclopropane. Retrieved from https://pubchem.ncbi.nlm.nih.gov/compound/Cyclopropane