PEMBUATAN PRECIPITATED CALCIUM CARBONATE (PCC) DARI BATU KAPUR DENGAN METODA KAUSTIK SODA

Authors

  • Novesar Jamarun
  • Yulfitrin -
  • Syukri Arief

DOI:

https://doi.org/10.25077/jrk.v1i1.54

Abstract

 

ABSTRAK

 

PCC dapat dihasilkan dari batu kapur melalui tiga metoda yaitu metoda solvay, karbonasi dan metoda kaustik soda.  Pada penelitian ini PCC disintesis dengan metoda kaustik soda yang dimodifikasi, yakni dengan mereaksikan batu kapur yang sudah dikalsinasi (CaO) dengan asam nitrat, membentuk garam kalsium nitrat yang mudah larut. Larutan garam yang terbentuk direaksikan dengan larutan natrium karbonat sehingga terbentuk endapan kalsium karbonat (PCC).  Berdasarkan analisis XRF kandungan CaO dalam batu kapur yang diambil dari 5 daerah (Halaban, Lintau Buo, Bukit Tui, Solok, Indarung) di Sumatera Barat berkisar antara 52,79% sampai 54,93%, dengan kandungan tertinggi pada daerah Lintau Buo (54,93%).   PCC yang dihasilkan paling banyak  diperoleh pada konsentrasi 2,00 M yaitu 96,52%.  Berdasarkan  analisis XRD, PCC mempunyai bentuk kristal kalsit dan vaterit  dengan ukuran kristal  13,95-14,02 nm, analisis dengan SEM menunjukkan partikel berbentuk kubus (kalsit)  dengan ukuran 2 µm.

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Published

2015-02-12

How to Cite

Jamarun, N., -, Y., & Arief, S. (2015). PEMBUATAN PRECIPITATED CALCIUM CARBONATE (PCC) DARI BATU KAPUR DENGAN METODA KAUSTIK SODA. Jurnal Riset Kimia, 1(1), 20. https://doi.org/10.25077/jrk.v1i1.54

Issue

Vol. 1 No. 1 (2007): September

Section

Articles

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