Study Of Thermal And Acid Stability Of Bentonite Clay = Studi Kestabilan Termal dan Asam Lempung Bentonit
ABSTRACT The thermal and acid stability of the bentonite clays (Na- and Ca-bentonite) have been tested. The thermal stability testing has been carried out by heating 5 gram of the clays for five hours at 200, 300 and 500°C respectively, meanwhile acid stability testing was performed by immersing 5...
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| Format: | Article NonPeerReviewed |
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[Yogyakarta] : Universitas Gadjah Mada
2002
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| Online Access: | https://repository.ugm.ac.id/17606/ http://i-lib.ugm.ac.id/jurnal/download.php?dataId=365 |
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| Institution: | Universitas Gadjah Mada |
| Summary: | ABSTRACT
The thermal and acid stability of the bentonite clays (Na- and Ca-bentonite) have been tested. The thermal stability testing has been carried out by heating 5 gram of the clays for five hours at 200, 300 and 500°C respectively, meanwhile acid stability testing was performed by immersing 5 gram clays into 100 mL sulphuric acid 1M, 2M and 3M for 24 hours. The tested clays, then were characterized by means of X-Ray difractometry and IR-spectroscopy methods.
The characterization results showed that upon heating, both Ca- and Na-bentonites indicated same thermal stability. However, upon acid treatment, Na-bentonite was found relatively stabiler and more resistance then Ca-bentonite.
Keywords: bentonite, clay, thermal stability, acid stability |
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