Research Article
Kinetic Studies on Saponification of Poly(ethylene
terephthalate) Waste Powder Using Conductivity Measurements
Table 3
Effect of temperature on saponification.
|
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 |
|
|
Slope of the graph of verses = −2829 K.
Activation energy: = 54.2 KJg−1.
|
