Abstract

This study tries to find out the feasibility of the used cooking oil as an additive component of candle. This study aims to produce a low-priced but high-quality candle by using used cooking oil as a major component.
The researcher would like to test the feasibility of cooking oil.

The following materials: 500 mL used cooking oil, 1 kg paraffin wax, strings cut into 5 inches long, serves as, wick, crayons in different colors, kettle, beaker, stirring rod, mold made from bamboo, the researcher conducted the experiment. The measured paraffin waxes will be cut into small pieces to facilitate melting. It will be placed in a clean and dry kettle, together with a small piece of colored crayon, to produce a colored candle candle. The kettle will be heated in low fire until the waxes and crayons melt. The melted wax will be added with different percentages of used cooking oil. Before the mixture solidifies, they will be formed into molds, wicks suspended in the middle of the container. They will be air-dried until hardened.
The melting rate of the different preparations of candles will be tested by the measured initial lengths of the candles and allowing them to burn for 15 minutes. The final lengths of the candles will be measured again. The melted candle will also be collected and measured. The intensity of light produced by the candles will also be tested using the photometer.

The table shows that the candle A has a very dim type of flame while the candle F has the very bright type of flame. It only means that the more used cooking oil in the candle, the more bright the type of the candles' flame. Also with the lifespan of the candles. As shown above, the more the used cooking oil in the candle, the more it lasts long.

The researcher would like to recommend that the study will be re-conducted to gather authentic results. It is also recommended to have further analysis of the composition of the candle.