Difference between revisions of "Mineral tanning"
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| − | + | Mineral tanning involves [[tanning leather|tanning]] with a group of [[tannins|tanning agents]]. These do not include [[Vegetable-tanned leather|vegetable tannins]]. Salts of various minerals have tanning properties. The [[tannins]] of the [[Vegetable-tanned leather|vegetable tannins]] are water-soluble. In the case of mineral raw materials, the water-soluble salts must be obtained by means of extensive chemical processes. The tanning ability of [[Chrome tanned|chromium]], [[Tawing with alum|aluminium]], zirconium, titanium and iron salts is known. In the area of mineral tanning, [[Chrome tanned|chrome tanning]] is by far the most important. | |
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| − | [[bild:ChromIII-01.jpg| | + | [[bild:ChromIII-01.jpg|500px]] |
| − | [[bild:ChromIII-02.jpg| | + | </p> |
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| + | [[bild:ChromIII-02.jpg|500px]] | ||
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<p align=center> | <p align=center> | ||
''Chromium (III) oxide in powder form.''<br></p> | ''Chromium (III) oxide in powder form.''<br></p> | ||
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== Additional information == | == Additional information == | ||
Latest revision as of 17:40, 14 October 2022
Mineral tanning involves tanning with a group of tanning agents. These do not include vegetable tannins. Salts of various minerals have tanning properties. The tannins of the vegetable tannins are water-soluble. In the case of mineral raw materials, the water-soluble salts must be obtained by means of extensive chemical processes. The tanning ability of chromium, aluminium, zirconium, titanium and iron salts is known. In the area of mineral tanning, chrome tanning is by far the most important.
Chromium (III) oxide in powder form.
Additional information
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