Magnetic thermometers increase in efficiency as temperature decreases, which makes them extremely useful in measuring very low temperatures with precision.
The flask was fitted with a magnetic stirrer, condenser, thermometer, and an inlet for the introduction of nitrogen.
The polymerization was carried out in a three-necked round-bottom flask fitted with a magnetic stirrer, condenser, thermometer and an inlet for the introduction of nitrogen.
A 2-liter flask equipped with heating mantel, magnetic stirrer, pot thermometer, addition funnel, and a dry-ice condenser was charged with the 1,1,1,3,3-pentachloro-1,3-disilapropane/1,1,1,3,3,3-hexachloro-1,-disilapropane mixture (276.8 g; 0.51 mol active reagent).
Under a nitrogen atmosphere, a 1-liter, 3-necked flask equipped with a heating mantle, magnetic stirrer, pot thermometer, addition funnel, and condenser was charged with 276.8 g of a mixture of approximately 46%% (dichlorosilylmethyl trichlorosilane and 54 % bis trichlorosilyl)methane [molar ratio 1 1].
For decolorization process, ozonation was carried out in a batch reactor, 500 ml in volume, equipped with a magnetic stirrer and a thermometer.
The transesterification of rapeseed oil was performed in a round-bottom flask reactor that included a thermometer, a magnetic stirrer and a condenser.
A three-necked flask, equipped with reflux condenser, dropping funnel, thermometer, and magnetic stirrer, was loaded with 25.94 g (0.108 mol) of phenyltriethoxysilane, C6H5Si OC2H5 3, and 122 ml of C2H5OH (rectified, 96%), containing 3.99 g (0.216 mol) water.
The transesterification of palm oil into biodiesel using CaO derived from Pomacea sp. shell was carried out in a 500-ml three-neck round-bottom flask equipped with a reflux condenser, thermometer, and magnetic heating mantle.
A 2-liter flask equipped with magnetic stirrer, condenser, pot thermometer, and addition funnel was charged with the 1,1,1,3,3-pentachloro-1,3-disilapropane/1,1,1,3,3,3-hexachloro-1,3-disilapropane mixture prepared above (1,455 g; 2.05 mol active).
