nyuuzyou/wikis huggingface dataset:
Maki /Rakanmaki /Rakanmatsu - right (329 R)

[[[SliderGallery rightalign|Uemura_10-08-2009_329.jpg~Normal]]]{| class="wikitable"
|-	
! scope="row"|Museum number
| 329
|-	
! scope="row"|Uemura number / title
| ; "Haze-some 25"
|-	
! scope="row"|Folder location
| 5th shelf
|-	
! scope="row"|Sample location
| right (329 R)
|-	
! scope="row"|Fiber type
| silk
|-	
! scope="row"|Color
| pale brown
|-	
! scope="row"|Dyestuff (Japanese common name)
| 槇 /羅漢槇 /羅漢松 : Maki /Rakanmaki /Rakanmatsu
|-	
! scope="row"|Dyestuff (botanical name)
| Podocarpus macrophyllus (Thub.) Sweet var. maki Endl.
|-	
! scope="row"|Plant part
| bark / dried (?)
|-	
! scope="row"|Dyestuff extraction
| boiled in water
|-	
! scope="row"|Auxiliary agent in dye bath
| -
|-	
! scope="row"|Mordant
| lime
|-	
! scope="row"|Other auxiliary agent
| -
|-	
! scope="row"|Uemura's notes
| The actual use of this plant for dyeing is unknown.
|-	
! scope="row"|Uemura's date
| Kyoto
|}
Category:Uemura dye archive
Makie

== Description ==
A decorative lacquer technique whose designs are created with embedded gold and silver particles. Makie techniques have been used since the 8th century in Japan. Patterns range from cloudlike patterns to full images. Specific makie techniques include: 
* nashiji: pear skin 
* ikakeji: poured ground 
* hiramakie: unpolished 
* togidashi: polished out 
* takamakie: relief sprinkled picture
== Synonyms and Related Terms ==
maki-e; makiye; nashiji; ikakeji; hiramakie; togidashi; takamakie
==Resources and Citations==
* The Dictionary of Art, Grove's Dictionaries Inc., New York, 1996
Category:Materials database
Malachite Green

== Description ==
A synthetic organic dye that was named for the mineral because of its color hue. Malachite Green is an aniline based dyestuff (a triphenylmethane salt) made by Dobner and Fisher in 1877. Both the chloride and the oxalate salt are known by the same name. In a neutral aqueous solution, its green crystals give an absorption maximum at 616.9 nm. Malachite Green is used for the direct dying of silk, wool, jute, and leather. It is also used to dye cotton after mordanting. Malachite Green can be used in spot chemical tests for the detection of sulfurous acid and cerium. It is used as an acid-base indicator with the following color ranges: yellow at pH 0, green at pH 2.0, cyan at pH 11.6, and colorless at pH 14. Malachite Green is also used to kill parasites, mold, and fungi in fish tanks.
[[[SliderGallery rightalign| Slide17 F386.PNG~XRF|Malachite.Green_abs.jpg~Absorption spectrum]]]
== Synonyms and Related Terms ==
malachite green chloride; Basic Green 4; CI 42000; viktoriavihreä (Fin.); Viktoriagrün (Deut.); Braunschweigergrün (Deut.); vert malachite (Fr.); viktoriagrönt (Sven.); verde malaquite (Port.); benzaldehyde green; 
Commercial names: Victoria Green B; China Green; Diamond Green B; Light Green N; Benzal Green; Fast Green
== Risks ==
* Toxic by ingestion. 
* Contact may cause irritation. 
* Fisher Scientific: MSDS
== Physical and Chemical Properties ==
Soluble in water and ethanol, methanol and amyl alcohol.
Composition 	C23H25ClN2
CAS 	569-64-2
Molecular Weight	mol. wt. = 364.92
==Resources and Citations==
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 5739
* Encyclopedia Britannica, http://www.britannica.com Comment: "malachite green." Accessed 7 Apr. 2005.
* Website: www.straw.com/sig/dyehist
* Website: http://www.coloria.net/varita.htm - foreign language equivalent terms
* The Dictionary of Art, Grove's Dictionaries Inc., New York, 1996
* Colour Index International online at www.colour-index.org
Category:Materials database
Malathion

== Description ==
A dark yellow liquid that is used as an insecticide. Malathion is an organophosphate compound that acts as a cholinesterase inhibitor. It has an unpleasant, sulfur type odor and can be corrosive to iron. Malathion has been used for control of cockroaches, treatment of head lice, and the aerial spraying to eradicate the Mediterranean fruit fly. Malathion biodegrades to form nontoxic compounds.
[[[SliderGallery rightalign|malathionir.jpg~FTIR|malathionstr.jpg~Chemical structure]]]
== Synonyms and Related Terms ==
S-[1,2-bis(ethoxycarbonyl)ethyl]O,O-dimethylphosphorodithioate; carbofos; mercaptothion; [(dimethoxyphosphinothioyl)thio]butanedioic acid diethyl ester; insecticide no. 4049; Cythion [American Cyanamid]
== Risks ==
* Relatively low toxicity for mammals. 
* Overexposure through inhalation and skin absorption can causes irritation and/or vision/breathing problems. LD50=2800 mg/kg 
* Potential teratogen. 
* Combustible. 
* Corrodes iron, steel, tin, lead, and copper. May discolor organic red dyes. 
* WinField: SDS
== Physical and Chemical Properties ==
Miscible with alcohols, ketones, ether, aromatic hydrocarbons and oils. Slightly soluble in water. Decomposes with acids or bases to produce sulfur compounds.
Composition 	C10H19O6PS2
CAS 	121-75-5
Melting Point 	2.9 C
Density 	1.23 g/ml
Molecular Weight	mol. wt. = 330.4
Boiling Point 	156-157 C
==Resources and Citations==
* Lynda A. Zycherman, J.Richard Schrock, A Guide to Museum Pest Control, FAIC and Association of Systematics Collections, Washington DC, 1988
* J. Dawson, CCI Technical Bulletin, 'Solving Museum Insect Problems: Chemical Control' , Canadian Conservation Institute, Ottawa, No. 15
== Sources Checked for Data in Record ==
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry # 5740
* Pam Hatchfield, Pollutants in the Museum Environment, Archetype Press, London, 2002
* G.Caneva, M.P.Nugari, O.Salvadori, Biology in the Conservation of Works of Art, ICCROM, Rome, 1991
Category:Materials database
Maleic acid

== Description ==
An organic acid that exists as white crystals at room temperature. Maleic acid is a strong irritating acid that is used in the dyeing and finishing of wool, cotton, and silk. It is also used as a preservative for fats and oils. Maleic acid is not the same as malic acid that is obtained from apples.
== Synonyms and Related Terms ==
maleinic acid; malenic acid; cis-butenedioic acid; toxilic acid; cis-1,2-ethylenedicarboxylic acid; resina maleica (Esp., Port.)
[[[SliderGallery rightalign|maleic acid.jpg~Chemical structure]]]
== Risks ==
* Strong irritant. 
* Toxic by ingestion. 
* Combustible producing toxic fumes. 
* ThermoFisher: SDS
==Physical and Chemical Properties==
Soluble in water, ethanol, acetone, glacial acetic acid. Slightly soluble in ether. Insoluble in benzene.
Composition 	HOOCC2H2COOH
CAS 	110-16-7
Melting Point 	138-139 C
Density 	1.59 g/ml
Molecular Weight	mol. wt. = 116.1
==Resources and Citations==
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* The Merck Index, Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 5743
* The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
Category:Materials database
Maleic anhydride

== Description ==
A reactive, white solid compound that is used in the manufacture of polyester and alkyd resins. Maleic anhydride has needle-like crystals that dissolve readily in water to form maleic acid. It is also used in finishing processes for paper and permanent press textiles. Maleic acid is also used in alkyd resins to increase hardness and decrease yellowing in baking enamels (Brady 1971).
== Synonyms and Related Terms ==
2,5-furandione; cis-butenedioic anhydride;
== Risks ==
* Corrosive. May cause burns. 
* Combustible. Flash point = 102 C 
* ThermoFisher: SDS
==Physical and Chemical Properties==
Dissolves in water to form maleic acid. Soluble in acetone, ethanol and dioxane. Slightly soluble in chloroform, benzene and toluene.
Composition 	C4H2O3
CAS 	108-31-6
Melting Point 	52.8 C
Density 	1.48 g/ml
Molecular Weight	mol. wt. = 98.06
Boiling Point 	202 C
==Resources and Citations==
* The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
* The Merck Index, Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 5744
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 605
* Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
Category:Materials database
Maleic resin

== Description ==
A polyester resin that is used as a lacquer coating, usually in mixtures with cellulose nitrate resins. Maleic resin is made from the combination of rosin or other natural resins with maleic anhydride in a glycerol solution. They dry quickly to form nonyellowing films.
==Resources and Citations==
* ASTM, "Standard Terminology Relating to Paint, Varnish, Lacquer and Related Products", Annual Book of ASTM Standards, Section 6, Paints, Related Coatings and Aromatics, ASTM, D16, 7-Jan, Jul-96
* Pam Hatchfield, Pollutants in the Museum Environment, Archetype Press, London, 2002
* Guy Weismantel, Paint Handbook, McGraw-Hill Book Company, New York, 1981
Category:Materials database
Maletto bark

== Description ==
The bark from the mallet tree, Eucalyptus astringens, is high in tannins and is used on a large scale for leather production. Maletto bark contains 40 to 55% tannins with less than 8% soluble nontans. When used by itself, it produces a dark red leather and it is sometimes mixed with other tannins for softer, fuller leathers.
== Synonyms and Related Terms ==
Eucalyptus astringens
==Resources and Citations==
* Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
Category:Materials database
Malic acid

== Description ==
White, water-soluble crystals that occur naturally in apples and other fruits. Malic acid is used as a chelating and buffering agent. The weak acid is also used to acidify food and to age wine.
== Synonyms and Related Terms ==
apple acid; hydroxysuccinic acid; hydroxybutanedioic acid
[[[SliderGallery rightalign|malic acid.jpg~Chemical structure]]]
== Risks ==
* Combustible. 
* Contact may cause irritation. 
* ThermoFisher: SDS
==Physical and Chemical Properties==
Soluble in water, methanol, diethyl ether, acetone and ethanol. Slightly soluble in ether. Insoluble in benzene.
pH = 2.2 (0.1 N solution)
Composition 	COOHCH2CH(OH)COOH
CAS 	617-48-1 (dl form)
Melting Point 	131-132 C
Density 	1.601 g/ml
Molecular Weight	mol. wt. = 134.09
==Resources and Citations==
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 55
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 5747
* 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
* Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
* CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: pH = 2.2 (0.1 N solution)
Category:Materials database
Malleability

== Description ==
The ability of a material to be formed or shaped by pressure without rupturing. Malleable metals can be rolled or hammered into thin sheets. Metals malleable by hammering are (in order starting with the most malleable): gold, silver, aluminum, copper, tin, platinum, lead, hot zinc, and soft steel (Mayer 1969). Metals in order of malleability by rolling are: lead, tin, gold, silver, aluminum, copper and platinum (Untracht 1968). Cast iron and hard steel are not malleable.
== Synonyms and Related Terms ==
malléabilité (Fr.); Duktilität (Deut.); Verformbarkeit (Deut.); maleabilidad (Esp.); smeedbaarheid (Ned.); maleabilidade (Port.)
==Resources and Citations==
* Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
* Oppi Untracht, Metal Techniques for Craftsmen, Doubleday & Company, Garden City, 1968
* Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
* ASTM, Standard Terminology of Microscopy, Annual Book of ASTM Standards, Section 14, General Methods and Instrumentation, ASTM, E175, 75-78, May 1982
Category:Materials database
Malleable iron

== Description ==
White cast iron can be converted to malleable iron by decomposing the cementite to form graphite nodules. To form malleable iron, cast iron is annealed for 2-3 days at about 800C in an oxygen-free atmosphere, then the temperature is decreased slowly. The iron must be low in carbon and contain about 1.0 to 1.5% silicon. The silicon and heat convert any iron carbide to graphite which deposits in nodules. Slight additions of copper accelerates the annealing process. The term malleable iron has also been used to refer to wrought iron.
== Synonyms and Related Terms ==
blackheart iron; whiteheart iron; nodular iron; ductile cast iron; wrought iron; fer malléable (Fr.); Schmiedbares Eisen (Deut.); Schmiedeeisen (Deut.); smeedbaar ijzer (Ned.); ferro fundido dúctil (Port.)
==Resources and Citations==
* Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
* Olympus Microscopy Resource Center at http://www.olympusmicro.com/galleries/abramowitz/pages/ductilecastironsmall.html
* Wikipedia: http://en.wikipedia.org/wiki/Cast_iron (Accessed Oct. 18, 2005)
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 489
* Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
Category:Materials database
Mallet

== Description ==
1) A eucalyptus tree, Eucalyptus astringens, that is native to Australia. The bark of the mallet tree, maletto, is used for tanning leather.
2) A wooden hammer.
== Synonyms and Related Terms ==
1) Eucalyptus astringens
==Resources and Citations==
* Hermann Kuhn, Conservation and Restoration of Works of Art and Antiquities, Butterworths, London, 1986
* Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
Category:Materials database
Maltese lace

== Description ==
A hand-made bobbin lace first made in 1833 by Genoese laceworkers living on the island of Malta. Maltese lace was characterized by geometric designs that include Maltese crosses and wheat stalks. The patterns were widely copied following their showing at the Great Exhibition in 1851.
== Comparisons ==
==Resources and Citations==
* Encyclopedia Britannica, http://www.britannica.com Comment: "Maltese Lace." Accessed 2 Aug. 200 .
* Edward Reich, Carlton J. Siegler, Consumer Goods: How to Know and Use Them, American Book Company, New York City, 1937
Category:Materials database
Maltose

== Description ==
A common disaccharide composed of two glucose molecules. Maltose occurs naturally in starch and glycogen. Maltose is used as a sweetener and a stabilizer for polysulfides.
== Synonyms and Related Terms ==
malt sugar; maltobiose
== Risks ==
* Combustible.
* Flinn Scientific: SDS
==Physical and Chemical Properties==
Soluble in water. Slightly soluble in ethanol. Insoluble in ether.
Composition 	C12H22O11-H2O
CAS 	69-79-4 (Anhydrous)
Melting Point 	102-103 C
Density 	1.454 g/ml
Molecular Weight	mol. wt. = 360.32
Category:Materials database
Mammoth tusk

== Description ==
Long, spiraly, curved tusks obtained from mammoths. Mammoth tusks have been abundantly found in Siberia, Russia and Alaska where they are readily collected from melted ice and glaciers. Also called fossil ivory, they have long been imported to Europe, China and Japan. The rootless, non-enameled incisors are as long as 12 feet (4 m) and can weigh up to 160 pounds (100 kg). Once cut, mammoth ivory is similar in appearance to elephant ivory, but tends to be more yellow with an opaque finish. Buried mammoth tusks are sometimes stained from minerals which produce the common uneven, brown color in Siberian ivory and the rare turquoise blue color in Alaskan ivory. Like elephant tusks, mammoth tusks are primarily composed of dentin, a hard calcareous material composed of calcium hydroxyapatite with small amounts of calcium carbonate, calcium fluoride, and magnesium phosphate. A new layer of dentin was added each season producing a layered ring structure. Deteriorated ivory tends to flake and peel along these lines. Mammoth ivory is not included in the worldwide ban of elephant ivory.
== Synonyms and Related Terms ==
fossil ivory; mammoth ivory
==Physical and Chemical Properties==
UV autofluorescence is white to yellow.
==Resources and Citations==
* F.Minney, "Ivory" The Dictionary of Art, Grove's Dictionaries Inc., New York, 1996.
* Hermann Kuhn, Conservation and Restoration of Works of Art and Antiquities, Butterworths, London, 1986
* Benjamin Burack, Ivory and Its Uses, Charles E. Tuttle and Co., Vermont, 1984
Category:Materials database
Manganese

== Description ==
A silvery-white, brittle metallic element. Manganese is an abundant, widely distributed element that is present in about 0.1% of the earth's crust. It occurs naturally in the minerals braunite, rhodochrosite, pyrolusite, hausmannite, manganite, manganosite, and in nodules on the ocean floor. Manganese metal was isolated in 1774 by Johann Gahn of Sweden. Pure manganese powder is used as a deoxidizing agent (see Ageless®). Metallic manganese cannot be fabricated, but rather it is used in the form of ferromanganese alloy. Manganese is added to steel and other metals to increase strength, hardness, and wear resistance. Manganese salts are used in glass and ceramic glazes to produce pink tones.
== Synonyms and Related Terms ==
Mn; Mangaan (Ned.); manganèse (Fr.); Mangan (Deut.); manganês (Port.); manganeso (Esp.); Mangan (Sven.); braunite; rhodochrosite; pyrolusite; hausmannite; manganite; manganosite
== Risks ==
* Inhalation or ingestion of manganese can cause a nervous system disorder. 
* Dust and powder are flammable 
* ThermoFisher SDS
== Physical and Chemical Properties ==
Decomposes slowly in water. Reacts with mineral acids.
Composition 	Mn (atomic no. 25)
CAS 	7439-96-5
Mohs Hardness 	5.0
Melting Point 	1244 C
Density 	7.47 g/ml
Molecular Weight	atomic wt = 54.9380
Boiling Point 	2095 C
== Resources and Citations ==
* Web Elements: Website
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
* Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
* Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 5762
* The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
Category:Materials database
Manganese black

== Description ==
A brownish-black synthetic pigment composed of manganese dioxide and/or other black manganese compounds such as jacobsite (MnFe2O4). Manganese was first used as a ceramic glaze in the Near East as early as the seventh millennium (Schweizer and Rinuy 1982). It was prepared from manganese ores and fired to produce a dark brown to black glaze. As a paint pigment manganese black was patented in England in 1871 by Rowan. It is was never commonly used, but is sometimes found in inexpensive house paints and as a drier in artists oil paints.
== Synonyms and Related Terms ==
manganese brown; Pigment Black 14; CI 77728; Manganschwarz (Deut.); negro de manganeso (Esp.); noir de manganèse (Fr.); mayro toy magganioy (Gr.); mangaanzwart (Ned.); negro de manganês (Port.)
== Risks ==
* Inhalation can cause a flu-like illness. 
* Ingestion may cause nausea and hypoglycemia. 
* Fisher Scientific: SDS
==Physical and Chemical Properties==
Composition 	MnO2
CAS 	1313-13-9
Molecular Weight	mol. wt. = 86.94
== Resources and Citations ==
* F.Schweizer, A. Rinuy, "Manganese Black as An Etruscan Pigment" Studies in Conservation, 27:118-123, 1982.
Category:Materials database
Manganese blue

== Description ==
A synthetic green-blue pigment made by fixing barium manganate on a barium sulfate base. Manganese blue was first discovered in 1907 but not patented until 1935. It is an inert pigment that can range in color from a clear azure blue to a bright emerald green (manganese green). Manganese blue accelerates the drying of oil paints but has poor tinting strength. It has been used most frequently for tinting cement.
== Synonyms and Related Terms ==
Pigment Blue 33; CI 77112; barium manganate blue; bleu de manganèse (Fr.); Manganblau (Deut.); azul de manganeso (Esp.); mple toy magganioy (Gr.); blu di manganese (It.); mangaanblauw (Ned.); azul de manganês (Port.); manganese green; Cassel green
== Risks ==
* Toxic. 
* Inhalation or ingestion of manganese can cause a nervous system disorder.
* ThermoFisher: SDS
==Physical and Chemical Properties==
* Insoluble in water. Unaffected by acids or alkalis. 
* Chemically inert. 
* Rectangular particles with rounded edges. 
* Strongly pleochroic from dark to pale turquoise. 
* Strong birefringence under crossed polars.
Composition 	BaMnO4-BaSO4
Density 	4.85 g/ml
Refractive Index	~1.65
== Comparisons ==
==Resources and Citations==
* M.de Keijzer "A Brief Survey of the Synthetic Inorganic Artists' Pigments Discovered in the 20th Century" ICOM Preprints, Dresden 1990 p. 214-219.
* Nicholas Eastaugh, Valentine Walsh, Tracey Chaplin, Ruth Siddall, Pigment Compendium, Elsevier Butterworth-Heinemann, Oxford, 2004
* The Dictionary of Art, Grove's Dictionaries Inc., New York, 1996 Comment: 'Pigment'
* R. J. Gettens, G.L. Stout, Painting Materials, A Short Encyclopaedia, Dover Publications, New York, 1966 Comment: first mentioned in patent literature in 1935
* Reed Kay, The Painter's Guide To Studio Methods and Materials, Prentice-Hall, Inc., Englewood Cliffs, NJ, 1983
* 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
* Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
* Art and Architecture Thesaurus Online, https://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000
Category:Materials database
Manganese carbonate

== Description ==
A white to pink powder that occurs in nature as the mineral rhodochrosite. Manganese carbonate is used as a white pigment and as a drier for oil paints. It is also used as a colorant in glazes.
== Synonyms and Related Terms ==
manganous carbonate; rhodochrosite (mineral); carbonato de manganeso (Esp.); carbonate de manganèse (Fr.); carbonato de manganês (Port.)
== Risks ==
* Toxic. 
* Inhalation or ingestion of manganese can cause a nervous system disorder. 
* EChemie: SDS
==Physical and Chemical Properties==
Soluble in dilute inorganic acids. Insoluble in water and ethanol.
Composition 	MnCO3
CAS 	598-62-9
Density 	3.1 g/ml
Molecular Weight	mol. wt. = 114.94
Category:Materials database