Telah dilakukan kajian awal perlakuan pemeraman pasca sintesis hydrotalcite dari brine water. Sintesis dilakukan menggunakan metode kopresipitasi pada rasio mol Mg/Al 2, temperatur 70°C, pH 10 selama 1 jam, sedangkan waktu pemeraman pasca sintesis selama 7 hari. Karakterisasi menggunakan XRD terhadap material
hasil sintesis hydrotalcite dengan waktu pemeraman yang lebih lama hanya menunjukkan basal spacing d003 dan d006 tanpa adanya d009 sebagaimana ciri dari senyawa hydrotalcite. Perlakuan pemeraman yang relatif lama menyebabkan banyak terbentuknya fase lain selain fase hydrotalcite.

Kata kunci: sintesis, hydrotalcite,  brine water, waktu pemeraman dan basal spacing
 

ABSTRACT
Preliminary study of different aging time treatment on post  synthesis of hydrotalcite from brine water had been done. The synthesis using coprecipitation method with Mg/Al molar ratio 2 at 70°C, pH 10, during 1 hours, while aging time on post synthesis during 7 days. Characterization using XRD of material synthesis that aging treatment was showed only basal spacing d003 and d006 without the d009 as characteristic of hydrotalcite compounds. Relatively long aging treatment led to the formation of many phases other than hydrotalcite phase.

Keywords: synthesis, hydrotalcite, brine water, aging time, basal spacing

Keywords: synthesis, hydrotalcite, brine water, aging time, basal spacing