ISSN 1119-4618
 

Original Research 


Morphological features of quartz dissolved in Humic acid

Abdullah Musa Ali, Mohammed Yerima Kwaya.

Abstract
Quartz dissolution plays a significant role in controlling the concentration of silica in hydrothermal systems, thus providing controls on natural waters and artificial systems. However, the kinetics of quartz dissolution, particularly in humic acid, is yet to be clearly elucidated, because of the varying explanations proffered in different studies. Therefore, this study reviews the empirical quartz dissolution models to present a unified approach. In addition, quartz grains were dissolved in humic acid and then characterized using scanning electron microscopy and Fourier Transform Infrared (FTIR). The review postulates that dissolution mechanism of the quartz in acidic solutions involves the reaction of the metal atoms with water to form solvated cations, and subsequent reaction of the silicate groups with H+ to form hydrated anions. Thus, quartz surface is intensely etched after dissolution to form varying degrees of deep etch pits and flat overlapping crystal faces. Concomitant with the quartz dissolution is the adsorption of humic acid onto the quartz surface via hydrogen-bond interaction. Fibrous and wiry structures as well as platelets of the humic acid molecules accumulating in the etch and dissolution pits and plaster the quartz surface. Therefore, in addition to mineral dissolution, humic acid serves as organic binders in siliciclastics. This study posits the dissolution of quartz in humic acid creates surface defects such as etch pits and leads to associated adsorption of humic acid molecules on the quartz surface via hydrogen-bond interaction.

Key words: Quartz dissolution; Surface morphological features; Etch pits; Flat overlapping crystal faces


 
ARTICLE TOOLS
Abstract
PDF Fulltext
Print this article Print this Article
How to cite this articleHow to cite this article
Citation Tools
Related Records
 Articles by Abdullah Musa Ali
Articles by Mohammed Yerima Kwaya
on Google
on Google Scholar
Article Statistics
 Viewed: 1821
Downloaded: 194
Cited: 0


How to Cite this Article
Pubmed Style

Ali AM, MYK, . Morphological features of quartz dissolved in Humic acid . JPAS. 2019; 16(1): 10-17. doi:10.5455/sf.18584


Web Style

Ali AM, MYK, . Morphological features of quartz dissolved in Humic acid . http://www.atbuscienceforum.com/?mno=18584 [Access: July 18, 2019]. doi:10.5455/sf.18584


AMA (American Medical Association) Style

Ali AM, MYK, . Morphological features of quartz dissolved in Humic acid . JPAS. 2019; 16(1): 10-17. doi:10.5455/sf.18584



Vancouver/ICMJE Style

Ali AM, MYK, . Morphological features of quartz dissolved in Humic acid . JPAS. (2019), [cited July 18, 2019]; 16(1): 10-17. doi:10.5455/sf.18584



Harvard Style

Ali, A. M., , M. . Y. . K. & (2019) Morphological features of quartz dissolved in Humic acid . JPAS, 16 (1), 10-17. doi:10.5455/sf.18584



Turabian Style

Ali, Abdullah Musa, Mohammed Yerima Kwaya, and . 2019. Morphological features of quartz dissolved in Humic acid . Science Forum (Journal of Pure and Applied Sciences), 16 (1), 10-17. doi:10.5455/sf.18584



Chicago Style

Ali, Abdullah Musa, Mohammed Yerima Kwaya, and . "Morphological features of quartz dissolved in Humic acid ." Science Forum (Journal of Pure and Applied Sciences) 16 (2019), 10-17. doi:10.5455/sf.18584



MLA (The Modern Language Association) Style

Ali, Abdullah Musa, Mohammed Yerima Kwaya, and . "Morphological features of quartz dissolved in Humic acid ." Science Forum (Journal of Pure and Applied Sciences) 16.1 (2019), 10-17. Print. doi:10.5455/sf.18584



APA (American Psychological Association) Style

Ali, A. M., , M. . Y. . K. & (2019) Morphological features of quartz dissolved in Humic acid . Science Forum (Journal of Pure and Applied Sciences), 16 (1), 10-17. doi:10.5455/sf.18584