Difference between revisions of "Magnesium carbonate"
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A fluffy white powder used as an inert pigment and as an ingredient in inks, glass, ceramic glazes, and dentifrice. Magnesium carbonate has also been used as a sorbent powder for water-free (dry) cleaning of jewelry and doll hair. Aqueous solutions of magnesium carbonate are used for neutralization and alkalization of paper. | A fluffy white powder used as an inert pigment and as an ingredient in inks, glass, ceramic glazes, and dentifrice. Magnesium carbonate has also been used as a sorbent powder for water-free (dry) cleaning of jewelry and doll hair. Aqueous solutions of magnesium carbonate are used for neutralization and alkalization of paper. | ||
| − | See also [http://cameo.mfa.org/materials/fullrecord.asp?name=magnesium | + | See also [http://cameo.mfa.org/materials/fullrecord.asp?name=magnesium%20bicarbonate magnesium bicarbonate]). |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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magnesite; magnesia white; Pigment White 18; Magnesiumcarbonat (Deut.) | magnesite; magnesia white; Pigment White 18; Magnesiumcarbonat (Deut.) | ||
| − | [[[SliderGallery rightalign|Magnesiteitaly1.jpg~Raman|magnesium carbonate.jpg~Chemical structure]]] | + | [[[SliderGallery rightalign|Magnesiteitaly1.jpg~Raman|Magnesite, ref 105090, Oberdorf, Austria.jpg~FTIR|magnesium carbonate.jpg~Chemical structure]]] |
== Other Properties == | == Other Properties == | ||
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[[media:download_file_523.pdf|Characteristics of Common White Pigments]] | [[media:download_file_523.pdf|Characteristics of Common White Pigments]] | ||
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== Authority == | == Authority == | ||
| − | * | + | * Nicholas Eastaugh, Valentine Walsh, Tracey Chaplin, Ruth Siddall, ''Pigment Compendium'', Elsevier Butterworth-Heinemann, Oxford, 2004 |
| − | * | + | * Ralph Mayer, ''A Dictionary of Art Terms and Techniques'', Harper and Row Publishers, New York, 1969 (also 1945 printing) |
| − | * | + | * Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993 |
| − | * | + | * Susan E. Schur, Conservation Terminology: A review of Past & Current Nomenclature of Materials, ''Technology and Conservation'', Spring (p.34-39); Summer (p.35-38); Fall (p.25-36), 1985 |
| − | * | + | * Tom Rowland, Noel Riley, ''A-Z Guide to Cleaning, Conserving and Repairing Antiques'', Constable and Co., Ltd., London, 1981 |
| − | * | + | * Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982 |
| − | * | + | * Book and Paper Group, ''Paper Conservation Catalog'', AIC, 1984, 1989 |
* ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 5696 | * ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 5696 | ||
Revision as of 07:22, 24 July 2013
Description
A fluffy white powder used as an inert pigment and as an ingredient in inks, glass, ceramic glazes, and dentifrice. Magnesium carbonate has also been used as a sorbent powder for water-free (dry) cleaning of jewelry and doll hair. Aqueous solutions of magnesium carbonate are used for neutralization and alkalization of paper.
See also magnesium bicarbonate).
Synonyms and Related Terms
magnesite; magnesia white; Pigment White 18; Magnesiumcarbonat (Deut.)
Other Properties
Soluble in acids. Slightly soluble in water. Insoluble in ethanol.
Translucent, colorless, angular crystals; high birefringence under crossed polars; extinction is complete and straight.
| Composition | MgCO3 |
|---|---|
| CAS | 546-93-0 |
| Melting Point | 350 (dec) |
| Density | 3.0 |
| Molecular Weight | mol. wt. = 84.3 |
| Refractive Index | 1.508; 1.510; 1.700 |
Hazards and Safety
Nontoxic. Ingestion has a laxative effect. Noncombustible.
LINK: International Chemical Safety Card
Comparisons
Characteristics of Common White Pigments
Authority
- Nicholas Eastaugh, Valentine Walsh, Tracey Chaplin, Ruth Siddall, Pigment Compendium, Elsevier Butterworth-Heinemann, Oxford, 2004
- Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Susan E. Schur, Conservation Terminology: A review of Past & Current Nomenclature of Materials, Technology and Conservation, Spring (p.34-39); Summer (p.35-38); Fall (p.25-36), 1985
- Tom Rowland, Noel Riley, A-Z Guide to Cleaning, Conserving and Repairing Antiques, Constable and Co., Ltd., London, 1981
- Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
- Book and Paper Group, Paper Conservation Catalog, AIC, 1984, 1989
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 5696