Research Article
Kinetic Studies on Saponification of Poly(ethylene
terephthalate) Waste Powder Using Conductivity Measurements
Table 3
Effect of temperature on saponification.
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Amount of PET waste powder: 10.0 g Amount of sodium hydroxide: 7.0 g Volume of pyridine: 3.0 cm3 |
| Temperature /°C | Temperature /K | 1//10−3 K−1 | Reaction rate constant, /10−3 g−1s−1 | |
| 50 | 323 | 3.10 | 0.88 | −3.05 | 60 | 333 | 3.00 | 1.68 | −2.77 | 70 | 343 | 2.92 | 2.88 | −2.54 | 80 | 353 | 2.83 | 5.12 | −2.29 |
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Slope of the graph of verses = −2829 K. Activation energy: = 54.2 KJg−1.
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