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Preparation of aluminium sulphate from kaolin and its performance in combination tanning

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dc.contributor.author China, Cecilia R.
dc.contributor.author Hilonga, Askwar
dc.contributor.author Maguta, Mihayo M.
dc.contributor.author Nyandoro, Stephen S.
dc.contributor.author Kanth, Swarna V.
dc.contributor.author Jayakumar, Gladstone C.
dc.contributor.author Njau, Karoli N.
dc.date.accessioned 2019-11-13T10:12:56Z
dc.date.available 2019-11-13T10:12:56Z
dc.date.issued 2019-07-25
dc.identifier.uri https://doi.org/10.1007/s42452-019-0979-1
dc.identifier.uri http://dspace.nm-aist.ac.tz/handle/123456789/519
dc.description Research Article published by SN Applied Sciences en_US
dc.description.abstract Leather making commonly use chromium salts to produce high quality products. However, the use of chromium salts is compromised by environmental safety concerns. Combination tanning using vegetable tanning coupled with aluminium sulphate can sustainably replace chrome tanning system. Adversely, the use of commercial aluminium sulphate poses economic burden that entails for cost effective sources. Abundance of kaolin on earth’s crust with scarce utilization is an opportunity towards cost effective aluminium sulphate for tanning. Therefore, in the present work aluminium sulphate was prepared from kaolin and its performance for combination tanning was studied. Diffraction and vibrational spectroscopic studies were carried out to confirm the prepared aluminium sulphate. Combination tanning was carried out with mimosa vegetable tannins. Leathers tanned with the combination of aluminium sulphate from kaolin and mimosa vegetable tannin exhibited hydrothermal stability of up to 118 °C as compared to mimosa alone that showed the average of 80 °C. Physical strength characteristics met the standard norms. Fibers separation was good as confirmed through microscopic studies. The study provides a new en_US
dc.language.iso en en_US
dc.publisher SN Applied Sciences en_US
dc.subject Pugu kaolin en_US
dc.subject Aluminium sulphate en_US
dc.subject Leather manufacturing en_US
dc.title Preparation of aluminium sulphate from kaolin and its performance in combination tanning en_US
dc.type Article en_US


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