nyuuzyou/wikis huggingface dataset:
Potassium bitartrate

== Description ==
White crystals or powder obtained from wine lees by extraction with water. Potassium bitartrate is used in baking powder, medicine, and as a mordant for dyeing textiles. It is used in combination with other mordants (alum, tin) to help maintain the softness of wool fibers. It was also used for the galvanic tinning of metals and as a reducing agent in glass making. In the 16th and 17th century, impure potassium bitartrate, called argol, was used as a solder flux in combination with salt and alum. Mixed with water or vinegar, it has been used as a cleanser for encrusted metal objects, such as coins and kitchenware.
[[[SliderGallery rightalign|potassium bitartrate.jpg~Chemical structure]]]
== Synonyms and Related Terms ==
cream of tartar; potassium acid tartrate; potassium hydrogen tartrate; cremor tartari; faecula; faecla; argol; lees; beeswing; Weinstein (Deut.); crème de tartre (Fr.)
== Risks ==
* Fisher Scientific: SDS
==Physical and Chemical Properties==
* Soluble in hot water, dilute acids, alkaline solutions.
* Burn test gives purple flame
Composition 	KHC4H4O6
CAS 	868-14-4
Density 	1.984 g/ml
Molecular Weight	mol. wt. = 188.18
==Resources and Citations===
* R. Mayer, The Artist's Handbook of Materials and Techniques, Viking Press, New York, 1981
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 68
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* Palmy Weigle, Ancient Dyes for Modern Weavers, Watson-Guptill Publications, New York, 1974
* 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
* John and Margaret Cannon, Dye Plants and Dyeing, Herbert Press, London, 1994
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 7776
* Wikipedia: http://en.wikipedia.org/wiki/Cream_of_tartar (Accessed Mar. 1, 2006)
Category:Materials database
Potassium borotartrate

== Description ==
White, water-soluble powder used in photography as a retarder for alkaline developers.
== Synonyms and Related Terms ==
potassium tartratoborate; soluble cream of tartar; borated cream of tartar; potassium sodium borotartrate
==Risks==
* Integra Chem: SDS
==Physical and Chemical Properties==
Soluble in water.
Composition	KC4H4BO7
==Resources and Citations==
* 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
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 7778
Category:Materials database
Potassium bromide

== Description ==
Colorless crystals or white powder. Potassium bromide is used in photography in gelatin bromide papers and in developing and intensifying baths. It is also used in process engraving and lithography. For infrared spectroscopy, potassium bromide is used to make IR transparent salt pellets.
== Synonyms and Related Terms ==
tripotassium tribromide
==Risks==
* Toxic by ingestion or inhalation of large amounts. 
* Skin contact may cause irritation. 
* Fisher Scientific: MSDS
==Physical and Chemical Properties==
Soluble in water, glycerol. Slightly soluble in ethanol, ether.
Composition 	KBr
CAS 	7758-02-3
Melting Point 	730 C
Density 	2.75 g/ml
Molecular Weight	mol. wt. = 119.0
Boiling Point 	1435 C
==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 7780
* Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
* Photographic chemicals: www.jetcity.com/~mrjones/chemdesc.htm 
Category:Materials database
Potassium carbonate

== Description ==
White deliquescent powder. Potassium carbonate is used in the manufacture of glass, ceramics, smalt, and soap. It is also used in printing inks, process engraving, and lithography and in tanning and finishing leather. In a closed environment, a saturated solution of potassium carbonate will form an equilibrium at a relative humidity of about 44% (20C).
== Synonyms and Related Terms ==
salts of tartar; oil of tartar; pearl ash; potash; salt of wormwood; carbonate of potass; american ashes; Kaliumcarbonat (Deut.); Pottasche (Deut.); carbonato de potasio (Esp.); wêglan potasu (Pol.)
== Risks ==
* Noncombustible. 
* Skin contact causes irritation. 
* Ingestion may be harmful. 
* ThermoFisher: SDS
== Physical and Chemical Properties ==
* Soluble in water. Insoluble in ethanol. 
* Deliquescent point at 20C is 44 % RH (see saturated salt solutions)
Composition 	K2CO3
CAS 	584-08-7
Melting Point 	891 C
Density 	2.428 g/ml
Molecular Weight	mol. wt. = 138.21
Refractive Index	1.426, 1.531, 1.541
== Resources and Citations ==
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 630
* 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
* Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 7781
* Photographic chemicals: www.jetcity.com/~mrjones/chemdesc.htm
* Wikipedia: http://en.wikipedia.org/wiki/Potassium_carbonate (Accessed Mar. 1, 2006)
* CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: ref. index=1.426, 1.531, 1.541
Category:Materials database
Potassium chloride

== Description ==
White crystals that occur in nature as the mineral sylvite. Potassium chloride is used in photography, spectroscopy, as a table salt substitute and as an ice melting salt.
== Synonyms and Related Terms ==
potassium monochloride; chloropotassuril; febrifuge of Sylicius; muriate of potass
== Risks ==
* Noncombustible. 
* Toxic by ingestion of large amounts. 
* Millipore Sigma: SDS
==Physical and Chemical Properties==
Soluble in water (pH is about 7 with saturated solution). Slightly soluble in ethanol. Insoluble in ether, acetone.
Composition 	KCl
CAS 	7447-40-7
Melting Point 	773 C
Density 	1.987 g/ml
Molecular Weight	mol. wt. = 74.55
Boiling Point 	1500 C (sublimes)
==Resources and Citations==
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 631
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 7783
* 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
Category:Materials database
Potassium chlorochromate

== Description ==
Red crystals. Potassium chlorochromate is used as an intensifier in the processing of black and white photographs.
== Synonyms and Related Terms ==
Peligot's salt
== Risks ==
* Releases chlorine fumes when heated or mixed with acids. 
* Toxic by ingestion and inhalation.
* Fisher Scientific: MSDS
==Physical and Chemical Properties==
Soluble in water.
Composition	KClCrO3
Density 	2.497 g/ml
Category:Materials database
Potassium chloroplatinate

== Description ==
A yellow crystalline powder. Potassium chloroplatinate was sold for a short time in the late 18th and early 19th century as an artists pigment, called platina yellow. It was initially called lemon yellow. Potassium chloroplatinate is now used in photography.
[[[SliderGallery rightalign|potassium chloroplatinate.jpg~Chemical structure]]]
== Synonyms and Related Terms ==
lemon yellow; platina yellow; platinum potassium chloride; potassium platinichloride
== Risks ==
* Toxic by ingestion and inhalation. 
* Contact may cause irritation or allergic reactions. 
* Fisher Scientific: MSDS
==Physical and Chemical Properties==
Slightly soluble in water. Insoluble in ethanol.
Composition 	K2PtCl6
CAS 	16921-30-5
Melting Point 	250 C (dec)
Density 	3.499 g/ml
Molecular Weight	mol. wt. = 485.9946
Refractive Index	1.827
==Resources and Citations==
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* R.D. Harley, Artists' Pigments c. 1600-1835, Butterworth Scientific, London, 1982
* CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: ref. index=1.827
Category:Materials database
Potassium cyanide

== Description ==
White, deliquescent powder with the faint odor of bitter almonds. Potassium cyanide is used to extract gold and silver from ores. It has also been used as an insecticide and fumigant. Many old recipes also used potassium cyanide to clean tarnish from silver.
== Risks ==
* Extremely TOXIC by ingestion, inhalation and absorption through skin. 
* ThermoFisher: SDS
==Physical and Chemical Properties==
Soluble in water, ethanol, glycerol.
Composition 	KCN
CAS 	151-50-8
Melting Point 	634 C
Density 	1.52 g/ml
Molecular Weight	mol. wt. = 65.12
Refractive Index	1.410
==Resources and Citations==
* D. Strahan "Treatment of a Silver Dragon for the Removal of Silver Cyanide and Chalconatronite" JAIC, 25: 73-81, 1986.
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 632
* 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
* George Savage, Art and Antique Restorer's Handbook, Rockliff Publishing Corp, London, 1954
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 7789
* CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: ref. index=1.410
Category:Materials database
Potassium dichromate

== Description ==
Bright orange crystals that are light sensitive. Potassium dichromate is used as a chrome mordant in dyeing textiles. It is also used to chrome tan leather and stain wood to an orange color. Potassium dichromate is used as an intensifier in black and white photographic processing. It is used as a pigment and as an insecticide. Potassium dichromate may also be used as a colorimetric reagent for the detection of lead in objects because the two materials react to form bright yellow lead chromate crystals (Odegaard et al 2000). Silver reacts with potassium dichromate to form a red precipitate.
== Synonyms and Related Terms ==
potassium bichromate; red potassium chromate; red potassium chromate; dipotassium dichromate
== Risks ==
* Toxic by ingestion or inhalation. 
* Severely corrosive on contact with hands. 
* Strong oxidizing agent. 
* ThermoFisher: SDS
== Physical and Chemical Properties ==
Soluble in water. Insoluble in ethanol.
Composition 	K2Cr2O7
CAS 	7778-50-9
Melting Point 	396 C
Density 	2.676 g/ml
Molecular Weight	mol. wt. = 294.18
Refractive Index	1.7202, 1.7380, 1.8197
Boiling Point 	500 C (dec)
==Resources and Citations==
* N.Odegaard, S.Carroll, W.Zimmt, Material Characterization Tests for Objects of Art and Archaeology Archetype Publications, London, 2000, lead p. 70, silver p.82-84.
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* Palmy Weigle, Ancient Dyes for Modern Weavers, Watson-Guptill Publications, New York, 1974
* Tom Rowland, Noel Riley, A-Z Guide to Cleaning, Conserving and Repairing Antiques, Constable and Co., Ltd., London, 1981
* Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
* John and Margaret Cannon, Dye Plants and Dyeing, Herbert Press, London, 1994
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 7790
* CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: ref. index=1.7202, 1.7380, 1.8197
Category:Materials database
Potassium ferricyanide

== Description ==
Ruby red crystalline powder that is used to make blueprints, to stain wood, and dye wool. Potassium ferricyanide is also used as an etching liquid in electroplating and as a reducing agent for photography.
[[[SliderGallery rightalign|potassium ferricyanide.jpg~Chemical structure]]]
== Synonyms and Related Terms ==
farmer's reducer; potassium hexacyanoferrate (III); Mercer's liquor; red prussiate of potash; red potassium prussiate;
== Risks ==
* Decomposes with heat, acids or UV light to produce highly toxic hydrogen cyanide fumes. 
* ThermoFisher: SDS
==Physical and Chemical Properties==
Soluble in water. Slightly soluble in ethanol.
Composition 	K3Fe(CN)6
CAS 	13746-66-2
Density 	1.85 g/ml
Molecular Weight	mol. wt. = 329.25
==Resources and Citations==
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 632
* 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
* Photographic chemicals at www.jetcity.com/~mrjones/chemdesc
* N.Odegaard, S.Carroll, W.Zimmt, Material Characterization Tests for Objects of Art and Archaeology, Archetype Publications, London, 2000, p. 62.
Category:Materials database
Potassium ferrocyanide

== Description ==
Yellow crystalline powder that is used as an etching liquid in electroplating and process engraving. Potassium ferrocyanide is also used as a fungicide in paper. Additionally, potassium ferrocyanide is used as a colorimetric reagent to detect the presence of iron or copper in metals, corrosion products, stains, or pigments (Odegaard et al 2000). It reacts with iron (III) ions to form ferric ferrocyanide (i.e., Prussian blue) and with copper (II) to form a red-brown cupric ferrocyanide.
== Synonyms and Related Terms ==
yellow prussiate of potash; Prussian alkali
== Risks ==
* Decomposed with heat, acids or UV light to produce hydrogen cyanide gas.
* CDH FIne CHemicals: SDS
== Other Properties ==
Soluble in water. Insoluble in ethanol.
Composition 	K4Fe(CN)6 - 3H2O
CAS 	13943-58-3
Density 	1.853 g/ml
Molecular Weight	mol. wt. = 422.39
==Resources and Citations==
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 632
* Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
* 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
Category:Materials database
Potassium gold chloride

== Description ==
Yellow crystalline powder. Potassium gold cyanide is used in photography and paints for porcelain and glass.
== Synonyms and Related Terms ==
potassium aurichloride; potassium chloroaurate; gold potassium chloride
== Physical and Chemical Properties ==
Soluble in water, ethanol, ether.
Composition	KAuCl4 - 2H2O
Category:Materials database
Potassium gold cyanide

== Description ==
White crystalline powder. Potassium gold cyanide is used in electrogilding.
== Synonyms and Related Terms ==
potassium cyanoaurite; gold potassium cyanide
== Risks ==
* Highly toxic by ingestion and inhalation
* CDH Chemicals: MSDS
==Physical and Chemical Properties==
Composition	KAu(CN)2
Category:Materials database
Potassium hydroxide

== Description ==
White deliquescent solid. Potassium hydroxide is a strongly caustic material that has long been used in the manufacture of soap. It is used as a mordant in dyeing wood and as a component in paint removers, and printing inks. Potassium hydroxide is also used as an etchant in photoengraving and lithography.
== Synonyms and Related Terms ==
caustic potash; potassium hydrate; potassium lye; potassa
== Risks ==
* Toxic by ingestion and inhalation
* Strongly caustic and corrosive to tissue
* Deleterious to wool, leather, aluminum, lead, tin and zinc.
* ThermoFisher: SDS
== Physical and Chemical Properties ==
Soluble in water, ethanol, glycerol. Slightly soluble in ether. Absorbs water and carbon dioxide from the air.
Composition 	KOH
CAS 	1310-58-3
Melting Point 	405 C
Density 	2.044 g/ml
Molecular Weight	mol. wt. = 56.1
Boiling Point 	1324 C
Category:Materials database
Potassium iodide

== Description ==
White cubic crystals or powder that slowly turns yellow as it decomposes due to the release of iodine. Potassium iodide is used in the manufacture of photographic emulsions. It is also used in infrared spectroscopy to make transparent salt pellets. Potassium iodide, mixed with iodine, is used as an indicator for starch.
== Synonyms and Related Terms ==
iodide of potass; potide
== Risks ==
* Slowly decomposes with moisture and light
* Contact may cause irritation
* ThermoFisher: SDS 
==Physical and Chemical Properties==
Soluble in water, ethanol, acetone, glycerol. Incompatible with calomel, potassium chlorate, metallic salts, organic acids.
Composition 	KI
CAS 	7681-11-0
Melting Point 	686 C
Density 	3.123 g/ml
Molecular Weight	mol. wt. = 166.0
Boiling Point 	1330 C
==Resources and Citations==
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* 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 7809
* A Glossary of Paper Conservation Terms, Margaret Ellis (ed.), Conservation Center of the Institute of Fine Arts, New York City, 1998
* Photographic chemicals at www.jetcity.com/~mrjones/chemdesc.htm
Category:Materials database
Potassium lactate

== Description ==
A potassium salt of lactic acid. Potassium lactate has been added to vegetable tanned leather as an acid buffer and as a scavenger for sulfur dioxide. Its effectiveness is questionable. Some treatments have resulted in a white eflorescence on the surface of the leather that is thought to be due to lactic acid or lactate salts (Gottleib 1982). Applications of potassium lactate to suede or deteriorated leathers (red rot) can cause blackening (Roberts and Etherington 1982).
== Risks ==
* Echemi: SDS
==Physical and Chemical Properties==
Composition	KC3H5O3 -H2O
==Resources and Citations==
* J.S. Gottleib, "A Note on Identifying Bloom on Leather Bindings" JAIC 22(1), 1982. 
* M.Roberts, D.Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington, DC, 1982.
* Hermann Kuhn, Conservation and Restoration of Works of Art and Antiquities, Butterworths, London, 1986
Category:Materials database
Potassium metabisulfite

== Description ==
White granules or powder with a pungent odor. Potassium metabisulfite is used as a bleaching agent for straw, wood, textiles, and paper. It is also used in photographic developing solutions.
== Synonyms and Related Terms ==
potassium pyrosulfite; dipotassium disulfite
[[[SliderGallery rightalign|potassium metabisulfite.jpg~Chemical structure]]]
==Risks==
* ThermoFisher: SDS
==Physical and Chemical Properties==
* Soluble in water. Insoluble in ethanol. 
* Oxidized in air to form potassium sulfate.
Composition 	K2S2O5
CAS 	16731-55-8
Melting Point 	150-190 C (dec)
Density 	2.3 g/ml
Molecular Weight	mol. wt. = 222.3
==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
* Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942
* The Merck Index, Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 7811
Category:Materials database
Potassium nitrate

== Description ==
Clear colorless crystals that are slightly hygroscopic. Potassium nitrate has been used since the 1300s as an ingredient in gunpowder. It was used in gold smelting, glass making, and textile dyeing. In a closed environment, a saturated salt solution of potassium nitrate will form an equilibrium at a relative humidity of about 93% (20C).
== Synonyms and Related Terms ==
niter; nitre; saltpeter; Bengal saltpeter ; sal prunella; kaliumnitrat (Dan., Deut.); salpêtre (Fr.); nitrato di potassio (It.); kaliumnitraat (Ned.); azotan potasu (Pol.); saletra potasowa (Pol.);
[[[SliderGallery rightalign|nitreRS.jpg~Raman|potassium nitrate.jpg~Chemical structure]]]
== Risks ==
* Dangerous fire and explosion risk when shocked, heated or in contact with organic materials. 
* Strong oxidizing agent. 
* ThermoFisher: SDS
== Physical and Chemical Properties ==
Soluble in water, glycerol. Slightly soluble in ethanol. 
Deliquescent point at 20C is 93.2 % RH (see saturated salt solutions)
Composition 	KNO3
CAS 	7757-79-1
Melting Point 	333 C
Density 	2.1062 g/ml
Molecular Weight	mol. wt. = 101.1
Boiling Point 	400 C (dec)
== Resources and Citations ==
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 632
* Hermann Kuhn, Conservation and Restoration of Works of Art and Antiquities, Butterworths, London, 1986
* 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
* Wikipedia: http://en.wikipedia.org/wiki/Potassium_nitrate (Accessed Nov. 9, 2005)
Category:Materials database
Potassium oleate

== Description ==
Gray, waxy paste. Potassium oleate is used in textile soaps, leather cleaners, and as an emulsifying agent.
== Synonyms and Related Terms ==
Vulpex; potassium salt of oleic acid
== Risks ==
* Combustible. 
* Exposure may cause irritation, headache, vomiting. 
* CDH Fine Chemicals: SDS
==Physical and Chemical Properties==
* Soluble in water, ethanol, mineral spirits. 
* Aqueous solution is alkaline to phenolphthalein.
* Composition = C17H33COOK
* CAS = 143-18-0
Category:Materials database
Potassium oxalate

== Description ==
Transparent, odorless crystals. Potassium oxalate is used as a water soluble source of oxalate for removing of rust stains and iron gall inks. It is also used as a cleaner for metals and wood, as a mordant in dyeing and as a photographic chemical.
== Synonyms and Related Terms ==
oxalate of potash
== Risks ==
* Toxic by ingestion and inhalation. 
* Skin contact may cause irritation. 
* Fisher Scientific: MSDS
==Physical and Chemical Properties==
Soluble in water. Insoluble in ethanol. Decomposes when heated to form potassium carbonate.
Composition 	K2C2O4 - H2O
CAS 	6487-48-5
Density 	2.08 g/ml
Molecular Weight	mol. wt. = 166.22
==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 7820
* Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
* Photographic chemicals: www.jetcity.com/~mrjones/chemdesc.htm
Category:Materials database