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Metalia Maryesri
Sekolah Tinggi Ilmu Farmasi (STIFARM) Padang
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Pembuatan Kalsium Karbonat Dari Batu Kapur Bukit Tui Kota Padang Panjang Rusdi Rusdi; Metalia Maryesri; Zulharmitta Zulharmitta
Jurnal Farmasi Higea Vol 5, No 2 (2013)
Publisher : STIFARM Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (112.836 KB) | DOI: 10.52689/higea.v5i2.88

Abstract

A Research has been done about preparing calcium carbonat from limestone of Bukit Tui Kota Padang Panjang. The sample as much as 20 g was dissolved in HCl 6 M, the resulting filtrate  reacted with NH4OH 6 M to the pH of 8 and reacted with (NH4)2CO3 6 M until no more precipitate was  was formed. The precipitate was separated and dried in oven for 4 hours at 105º C. Ten g of the dried precipitate was determined complexometrically using EDTA as complexson and murexide as indicator. It was found that the limestone at Bukit Tui Kota Padang Panjang contained 67.2 % w/w calcium carbonate in comparison to reference compound 103.99 % w/w.
Co-Authors Rusdi Rusdi Zulharmitta Zulharmitta