SINTESIS SURFAKTAN NATRIUM LIGNOSULFONAT (C20H24Na2O10S2) BERBAHAN DASAR SERBUK KAYU MAHONI MENGGUNAKAN PROSES SULFONASI

Maulida, Nabilah (2025) SINTESIS SURFAKTAN NATRIUM LIGNOSULFONAT (C20H24Na2O10S2) BERBAHAN DASAR SERBUK KAYU MAHONI MENGGUNAKAN PROSES SULFONASI. Undergraduate thesis, UPN VETERAN JAWA TIMUR.

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Abstract

Mahogany furniture production produces sawdust waste containing biomass components such as cellulose, hemicellulose, and lignin. The lignin content in mahogany sawdust can be used as a raw material for the synthesis of sodium lignosulfonate surfactants. Lignin delignification is carried out using alkali followed by lignin isolation by acid precipitation. The pure lignin isolate is then used as a raw material for the synthesis of sodium lignosulfonate surfactants through a sulfonation process. The sulfonation process is carried out by mixing the lignin isolate and sodium bisulfite solution using varying excess NaHSO3 and sulfonation times. Both variables are controlled by the addition of a 16.5% sodium hydroxide solution catalyst and maintaining the pH at pH 4. The resulting sodium lignosulfonate surfactant solution is then characterized using an FT-IR spectrophotometer and a UV-Vis spectrophotometer. The best conditions were obtained at a sulfonation time of 150 minutes and a 75% excess of NaHSO3, with a sodium lignosulfonate surfactant concentration of 4100.784 mg/L.

Item Type:	Thesis (Undergraduate)
Contributors:	Contribution Contributors NIDN/NIDK Email Thesis advisor Perwitasari, Dyah Suci NIDN0730116601 saridyah05@gmail.com
Subjects:	T Technology > TP Chemical technology > TP155 Chemical engineering
Divisions:	Faculty of Engineering > Departement of Chemical Engineering
Depositing User:	Nabilah Maulida
Date Deposited:	04 Dec 2025 06:59
Last Modified:	04 Dec 2025 06:59
URI:	https://repository.upnjatim.ac.id/id/eprint/47261

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