Determination of potassium pentaborate octahydrate production conditions

Öz

Inorganic boron compounds are used in construction, agriculture, cosmetics, textile, ceramic, nuclear energy, military industry, electronics and automotive industry. In this study potassium borate (xK₂O.yB₂O₃.zH₂O) which is one of these inorganic borates was produced by using boric acid and potassium hydroxide in aqueous medium. After specifying theoretical reaction conditions required for chemical reaction, different B₂O₃/K₂O mixing ratios have been tried to obtain several products having different purities. Obtained products are characterized by means of chemical analyses, XRD and TG-DTA analyses and they are compared with original samples. Borax decahydrate, borax pentahydrate, potassium chloride, carbonate and hydroxide is used in conventional production technique of potassium pentaborate. In this study it is obtained by using KOH and low sulfate boric acid which is a commercial product of Eti Mine Works General Management in laboratory environment.

Anahtar Kelimeler

• Boricacid,Potassiumpentaborate,Potassium hydroxide

Potasyum pentaborat oktahidrat üretim koşullarının belirlenmesi

Öz

İnorganik bor bileşikleri, inşaat, tarım, kozmetik, tekstil, seramik, cam, nükleer sanayi, askeri uygulamalar, elektronik cihazlar ve otomotiv sektöründe kullanılmaktadır. Bu çalışmada inorganik boratlardan biri olan potasyum boratın (xK₂O.yB₂O₃.zH₂O) sulu ortamda borik asit ve potasyum hidroksit kullanılarak üretimi gerçekleştirilmiştir. Bu amaçla tepkimenin meydana gelmesi için gerekli teorik koşullar belirlendikten sonra farklı kütlesel B₂O₃/K₂O oranları denenerek optimum koşullar elde edilmeye çalışılmıştır. Elde edilen ürünlerin kimyasal analizleri yapılarak, XRD’si ve TG-DTA’ları çekilerek yapıları karakterize edilerek orijinal ürünlerle karşılaştırılmıştır. Geleneksel yöntemle boraks dekahidrat, boraks pentahidrat, potasyum klorür, karbonat ve hidroksitle üretilen potasyum pentaborat bu çalışmada KOH ile Eti Maden İşletmeleri Genel Müdürlüğünün ticari ürünü olan düşük sülfatlı borik asit kullanılarak laboratuvar ortamında üretilmiştir. 

Anahtar Kelimeler

• Borikasit,Potasyumpentaborat,Potasyumhidroksit

Kaynakça

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