Difference between pages "Vat yellow" and "Vaterite"

Revision as of 16:02, 23 June 2022

A rare crystalline form of Calcium carbonate.

vaterite (Port.); Vaterit (Deut.)

R. Gettens, E. West Fitzhugh, R.Feller, "Calcium Carbonate Whites", Artists Pigments, Vol. 2., A. Roy ed. Oxford University Press, Oxford, 1993.° Mineralogy Database: Vaterite

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 == Description ==
-Any yellow [[anthraquinone]] dye. Vat yellows, such as flavanthrene and anthrapyrimidine, are water-soluble in their reduced state. They become insoluble when oxidized forming a strong, stable color. Vat yellows are sometimes used in automobile paints, but other uses are limited because of their high costs.
+A rare crystalline form of [[calcium carbonate]].
+== Synonyms and Related Terms ==
+vaterite (Port.); Vaterit (Deut.)
+==Physical and Chemical Properties==
+* Hexagonal crystal system.
+* Reacts with acids to evolve carbon dioxide
+{| class="wikitable"
+|-
+! scope="row"| Composition
+| CaCO3
+|-
+! scope="row"| Mohs Hardness
+| 3
+|-
+! scope="row"| Density
+| 2.54 g/ml
+|}
+==Resources and Citations==
+* R. Gettens, E. West Fitzhugh, R.Feller, "Calcium Carbonate Whites", ''Artists Pigments'', Vol. 2., A. Roy ed. Oxford University Press, Oxford, 1993.° Mineralogy Database: [http://www.webmineral.com/data/Vaterite.shtml Vaterite]
 [[Category:Materials database]]