PAC Database - Detailed Chemical Data
Chemical Identity
| Chemical | CAS# | UN# | Health Code Numbers | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Polyamide 6; (Capron; Poly(iminocarbonylpentamethylene)) | 25038-54-4 |
15.01
11.01
15.02
3.11
10.00
3.01
|
||||||||||
| Formula | Synonyms | |||||||||||
| (C6H11NO)n | ||||||||||||
Physical Properties
| Mol Wt | State | MP (°C) | BP (°C) | VP (Hg) | VP (°C) | SG | LEL (ppm) |
|---|---|---|---|---|---|---|---|
| 0 | S | 223 | 1.14 @ 20°C |
PAC Values
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 3.2 | 24 | 140 |
| PAC-1 | PAC-2 | PAC-3 |
|---|---|---|
| 0 | 0 | 0 |
Technical Basis
Limited toxicity data is available for this chemical. Based on species preferability and limit comparability, an LD50 rat value is chosen for TEEL-3 development. An oral exposure route is assumed, as none is listed. A TEEL-2 was derived from TEEL-3 using the fill gap adjustment factors described in Table 3.52. A PEL-TWA exposure limit was found for TEEL-1, which is preferable to using the fill gap adjustment factors.
• TEEL-1 = PEL-TWA x 3 (5 mg/m3)
• TEEL-2 = TEEL-3/6
• TEEL-3 = Estimated from rat, oral LD50 (3200 mg/kg)
Previous TEEL estimates used a Health Hazard Rating (HHR) of 2 for TEEL development. Using toxicity data is preferable for TEEL development, however in this case, similar TEEL values to Rev. 29A were obtained.
• TEEL-1 = PEL-TWA x 3 (5 mg/m3)
• TEEL-2 = TEEL-3/6
• TEEL-3 = Estimated from rat, oral LD50 (3200 mg/kg)
Previous TEEL estimates used a Health Hazard Rating (HHR) of 2 for TEEL development. Using toxicity data is preferable for TEEL development, however in this case, similar TEEL values to Rev. 29A were obtained.
References
Rat LD50: https://www.conncoll.edu/media/website-media/offices/ehs/envhealthdocs/Nylon_Fibers.pdf
Table 3.5.
Respirable dust OSHA PEL-TWA: https://www.sorbtech.com/msds/SDS%20Polyamide%206.pdf