Table 2 Elemental analysis of PTFE and degradation reside (entry 15 in Table 1)
From: Room-temperature defluorination of PTFE and PFAS via sodium dispersion
Anal. | Sum of C/H/N/F (%)a | Others (%)a | Ratio of C/Fa | F (%) lost from PTFEa | |||||
|---|---|---|---|---|---|---|---|---|---|
Entry | Sample | C (%) | H (%) | N (%) | F (%) | ||||
1 | PTFE | 23.95 | 0 | 0 | 99.98 | 0.02 | 1/1.99 | 0.3 | |
2 | PTFE | 75.98 | |||||||
3 | PTFE | 24.16 | 0 | 0 | |||||
4 | PTFE | 75.87 | |||||||
5 | Residue | 56.25 | 2.9 | 0.95 | 71.93 | 28.07 | 1/0.13 | 93.5 | |
6 | Residue | 11.60 | |||||||
7 | Residue | 56.47 | 3.09 | 0.83 | |||||
8 | Residue | 11.77 | |||||||
