The Effect of Variations of Stearin Mass and Used Cooking Oil From Purification with Activated Carbon on the Quality of The Candle

Authors

  • Siti Jamilatun Ahmad Dahlan University
  • Ikko Nirwana Luthfiani Ahmad Dahlan University
  • Dita Permata Putri Ahmad Dahlan University
  • Joko Pitoyo Universitas Ahmad Dahlan
  • Aster Rahayu Universitas Ahmad Dahlan

DOI:

https://doi.org/10.21111/atj.v6i1.7234

Keywords:

used cooking oil, activated carbon, stearin, candle

Abstract

Cooking oil is vegetable oil that has been purified and can be used as foodstuff. Consumtion of cooking oil is used as a medium for frying foodstuff, to add flavor and to form texture in bread making. Cooking oil that has been used repeatedly or commonly known as used cooking oil has a very bad impact on our body and will pollute the environment if it is not managed properly. Candles are made of paraffin, melt easily when heated, and can be used as a light source. For making candle, a chemical is added, namely stearin. The function of this stearin is to give shape fot candles because stearin will solidify once it cools. The presence of palmitic acid and stearic acid contained in stearin causes stearin to be in a solid state at room temperature. The study was conducted using 400 ml of used cooking oil which was then clarified with variations in the mass of activated carbon as much as 40, 80, and 120 grams. The clarified oil will then be analyzed for its absorbance value using a spectrophotometer uv-vis, then it will become a wax with the addition of variations in the mass of stearin as much as 50, 75, and 100 grams. The resulting candle will be tested which includes hardness, organoleptic test, flame test, and flame resistance of the candle.

Author Biographies

Siti Jamilatun, Ahmad Dahlan University

Departemn of Chemical Engineering

Ikko Nirwana Luthfiani, Ahmad Dahlan University

Department of Chemical Engineering

Dita Permata Putri, Ahmad Dahlan University

DEpartment of Chemical Engineering

Joko Pitoyo, Universitas Ahmad Dahlan

Department of Chemical Engineering

Aster Rahayu, Universitas Ahmad Dahlan

Department of Chemical Engineering

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Published

2022-05-26

Issue

Vol. 6 No. 1 (2022): Agroindustrial Technology Journal

Section

Articles

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