nyuuzyou/wikis huggingface dataset:
Lawn fabric

== Description ==
A fine, sheer fabric with a crisp, linen-like texture. Lawn fabric derived its name from the town of Laon in France. It is made with a plain weave linen or cotton and is usually starched or sized. Lawn fabric was popular for full-skirted dresses, underskirts, handkerchiefs, and curtains.
== Synonyms and Related Terms ==
lawn textile; linon (Fr.); linón (Esp.); leno (Esp.); batist (Ned.); linon (Ned.); lawn (Ned.); kamerdoek (Ned.); Kamerijks linnen (Ned.);
==Resources and Citations==
* Art and Architecture Thesaurus Online, https://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000
* Edward Reich, Carlton J. Siegler, Consumer Goods: How to Know and Use Them, American Book Company, New York City, 1937
* Website: www.fabrics.net
Category:Materials database
Lazulite

== Description ==
A minor blue-green color gemstone composed of iron aluminum phosphate. Although its name has caused some confusion, it has no connection with lazurite, the main ingredient in lapis lazuli. Lazulite is a translucent stone that has been found in Switzerland (Zermatt), Austria, Sweden, Malagasy Republic, Brazil (Minas Gerais), Canada (Yukon), and the U.S.(California, Georgia). It was used for inlays on an amulet from the Oxxus Treasure (Ogden 1982).
[[[SliderGallery rightalign|Lazulite IR-ATR RRUFF R050110.png~IR-ATR (RRUFF)|Lazulite Raman RRUFF R050110.png~Raman (RRUFF)|lazuliteRS.jpg~Raman (RASMIN)]]]
== Synonyms and Related Terms ==
Lazulit (Deut.)
==Physical and Chemical Properties==
* Monoclinic system with bipyramidal crystals or grains 
* Cleavage = poor to good in one direction 
* Fracture = uneven, splintery
* Luster = vitreous to dull 
* Streak = white
* Fluorescence = inert
* Pleochroism = strong; dark violet blue and colorless to light blue
Composition 	MgAl2(OH)2(PO4)2
Mohs Hardness 	5.5 - 6.0
Density 	3.0-3.4 g/ml
Refractive Index	1.60; 1.63; 1.64
Birefringence 	0.031 - 0.037
== Comparisons ==
==Resources and Citations==
* Gem Identification Lab Manual, Gemological Institute of America, 2016.
* Mineralogy Database: Lazulite
* Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942
* Jack Odgen, Jewellery of the Ancient World, Rizzoli International Publications Inc., New York City, 1982
* Encyclopedia Britannica, http://www.britannica.com Comment: "lazulite." Accessed 7 Apr. 2005 .
* C.W.Chesterman, K.E.Lowe, Audubon Society Field Guide to North American Rocks and Minerals, Alfred A. Knopf, New York, 1979
* Wikipedia: Lazulite (Accessed Sept. 7, 2005 and Dec 2022)
Category:Materials database
Lazurite

== Description ==
The name for the primary blue mineral component in lapis lazuli. This name, however, is rarely used because of the possible confusion with lazulite.
[[[SliderGallery rightalign|LazuriteUCL.jpg~Raman|Lazurite.PNG~FTIR (MFA)]]]
== Synonyms and Related Terms ==
lazurita (Esp.); lazurite (Fr., Port.); Lazurit (Deut.); Lasurstein (Deut.); lazuriet (Ned.)
==Physical and Chemical Properties==
Composition	(Na,Ca)8(Al,Si)12O24(S,SO4)
== Comparisons ==
==Resources and Citations==
* Mineralogy Database: Lazurite
* The Dictionary of Paper, American Paper Institute, New York, Fourth Edition, 1980
Category:Materials database
Lea

== Description ==
A measure of yarn length that is used to determine density. The length of a lea of yarn varies with fiber type:
* wool: a lea is usually 80 yards (73 meters)
* cotton: a lea is usually 120 yards (110 meters)
* silk: a lea is usually 120 yards (110 meters)
* linen: a lea is usually 300 yards (274 meters)
The count or number of a yarn is given as the leas per pound of fiber. Thus a 10 count linen yarn has 3000 yards per pound.
== Synonyms and Related Terms ==
(garen) lengtemaat (Ned);
==Resources and Citations==
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971
* Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
Category:Materials database
Lead acetate

== Description ==
A white, crystalline solid that is made by the action of acetic acid on lead plates. Lead acetate is highly poisonous. Fresh lead acetate is soluble in water, but with exposure to air, lead acetate absorbs carbon dioxide, thus changing into basic lead carbonate which is incompletely insoluble in water. Lead acetate was a common drier added to oil paints an varnishes. It has also been used as a mordant for dyes on cotton, for weighting silk and for making some lead-chrome pigments. Indicating papers can be made with lead acetate that are sensitive to vapor phase hydrogen sulfide (Waller et al 2000).
== Synonyms and Related Terms ==
sugar of lead; lead sugar; salt of Saturn; plumbus acetate; lead diacetate; lead (II) acetate; lead dibasic acetate
== Risks ==
* Combustible. 
* Toxic by inhalation or ingestion. 
* Skin contact may cause irritation or ulcers. 
* Carcinogen, teratogen, suspected mutagen. 
* ThermoFisher: SDS
==Physical and Chemical Properties==
Soluble in water and glycerol.
Composition 	Pb(C2H3O2)2.3H2O
CAS 	301-04-2
Melting Point 	75 C
Density 	2.55 g/ml
Molecular Weight	mol. wt. = 325.3
Boiling Point 	280 C
==Resources and Citations==
* R. Waller, K.Andrew, J.Tetreault, "Survey of Gaseous Pollutant Concentration Distributions in Mineral Collections" Collection Forum, 14(1-2):1-32, 2000.
* 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. 274
* 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
* Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996
* 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, Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 5228
* The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
* Wikipedia: http://en.wikipedia.org/wiki/Lead_acetate (Accessed Jan. 6, 2006)
Category:Materials database
Lead alloys

== Description ==
Lead alloys well with other metals and is often used in mixtures containing 62-95% lead, 1-35% tin, and 3-13% antimony. Lead alloys melt at 290-390 C to form a medium viscosity liquid. Lead alloys are soft and do not reproduce fine detail well when molded.
== Synonyms and Related Terms ==
alliages de plomb (Fr.); Bleilegierungen (Deut.); aleaciones de plomo (Esp.); lood legering (Ned.); ligas de chumbo (Port.)
== Risks ==
Inhalation and ingestion of lead fumes and dust is very toxic.
==Resources and Citations==
* David Matthews, Moldmaking and Casting FAQ, www.sfcmd.com/heavygear/faqs/moldmaking_faq.txt
Category:Materials database
Lead carbonate, normal

== Description ==
A grayish-white, crystalline mineral called cerussite that is one of the primary types of [[lead] ore. Cerussite is mined in Australia, Europe, and the U.S.(Colorado, Arizona, New Mexico, Idaho). Cerussite can be formed by the action of ground water on galena (lead sulfide) ore. Although basic lead carbonate has been used as a white pigment since ancient times, it was made synthetically and not obtained from the naturally occurring cerussite ore. In fact, cerussite has rarely been used as a white pigment although it is occasionally found as an impurity in basic lead carbonate (Gettens, Kuhn and Chase 1993).
== Synonyms and Related Terms ==
cerussite; blanco de plomo, albayalde (Esp.); carbonate de plomb (Fr.); Bleicarbonat (Deut.); Cerrusit (Deut.); loodcarbonaat (Ned.)
== Risks ==
* Toxic by inhalation or ingestion. 
* Skin contact may cause irritation or ulcers. 
* Carcinogen, teratogen, suspected mutagen. 
* Fisher Scientific: MSDS
==Physical and Chemical Properties==
* Effervesces in nitric acid. 
* Insoluble in water and ethanol. 
* Turns black in the presence of sulfur fumes. 
* Fluoresces yellow to golden color. 
* High birefringence. 
* Interference colors are third order or greater. 
* Complete extinction.
Composition 	PbCO3
CAS 	598-63-0
Mohs Hardness 	3.0 - 3.5
Density 	6.55 g/ml
Refractive Index	1.803; 2.074; 2.076
==Resources and Citations==
* Nicholas Eastaugh, Valentine Walsh, Tracey Chaplin, Ruth Siddall, Pigment Compendium, Elsevier Butterworth-Heinemann, Oxford, 2004 Comment: Vol. 2, page 299
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 444
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
* Artists' Pigments: A Handbook of their History and Characteristics, Ashok Roy (ed.), National Gallery of Art, Washington DC, Vol. 2, 1993 Comment: R.J.Gettens, H. Kuhn, W.T. Chase, "Lead White"
Category:Materials database
Lead chromate

== Description ==
An important commercial yellow pigment called chrome yellow. Lead chromate can range in shade from lemon yellow to orange depending on its particle size and hydration state. Chrome yellow, which came on the market in early 1800s, is fairly permanent to light, but has been known to darken on aging or with exposure to hydrogen sulfide. Chrome yellow is used in industrial paint, some artists paint and ceramic glazes.
== Synonyms and Related Terms ==
chrome yellow; Pigment Yellow 34; CI 77600; chromate de plomb (Fr.); cromato de plomo (Esp.); Chromgelb (Deut.); chromikos molybdos (Gr.); kitrino toy chromioy (Gr.); gialli di cromo (It.); loodchromaat (Ned.); cromato de chumbo (Port.); lead chrome yellow; chrome red; chrome orange; Paris yellow; king's yellow; Cologne yellow; Leipzig yellow
[[[SliderGallery rightalign|Chrome yellow 305.TIF~FTIR (MFA)|Chrome yellow (Forbes MFA 305) resize.tif~Raman (MFA)|PIG306.jpg~XRD|f306sem.jpg~SEM|f306edsbw.jpg~EDS|Slide16 FC306.PNG~XRF]]]
==Risks ==
* Human carcinogen, teratogen and suspected mutagen. 
* Skin contact may cause allergies. 
* Ingestion may cause fatal chromium/lead poisoning. 
* Chronic inhalation may cause lung cancer and respiratory irritation. 
* ThermoFisher: MSDS
== Physical and Chemical Properties ==
Soluble in strong acids and alkalis. Insoluble in water.
Composition 	PbCrO4
CAS 	7758-97-6
Melting Point 	844 C
Density 	5.96-6.3 g/ml
Molecular Weight	mol. wt. = 323.19
Refractive Index	2.31; 2.49
== Resources and Citations ==
* H. Kuhn, M.Curran, "Chrome Yellow and Other Chromate Pigments", Artists Pigments, Volume 1, R. Feller (ed.), Cambridge University Press: Cambridge, 1986. 
* R. J. Gettens, G.L. Stout, Painting Materials, A Short Encyclopaedia, Dover Publications, New York, 1966 Comment: density 5.96 and ref. index 2.31; 2.49
* Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 5422
* The Dictionary of Art, Grove's Dictionaries Inc., New York, 1996 Comment: "Pigments"
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
* Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000
Category:Materials database
Lead chromate, basic

== Description ==
An important commercial pigment called chrome red. Basic lead chromate pigment that ranges in shades from orange to red. First made in 1809 by Vauquelin, basic lead chromate is formed by heating lead chromate and sodium hydroxide solution. The color of chrome red or chrome orange can vary from a brown-yellow to a brick-red color depending on particle size and to the ratio of lead oxide to lead chromate. It is stable in light but is not widely used because of its sensitivity to sulfur gases. Most often, chrome red is used as an anticorrosive base coats for steel.
== Synonyms and Related Terms ==
basic lead chromate; Pigment Red 103; CI 77601; cromato básico de plomo (Esp.); cromato básico de chumbo (Port.); chrome red; chrome orange; lead chromate oxide; chromic acid lead; red lead chromate; Persian red; Austrian red; Derby red; Chinese red; Vienna red; Victoria red; American vermilion; garnet chrome; ruby red chrome; orange paste
== Risks ==
* Human carcinogen, teratogen and suspected mutagen. 
* Skin contact may cause allergies. 
* Ingestion may cause fatal chromium/lead poisoning. 
* Chronic inhalation may cause lung cancer and respiratory irritation
* American Elements: SDS
==Physical and Chemical Properties==
Soluble in strong acids and alkalis. Insoluble in water.
Composition 	PbO-CrO3
Molecular Weight	mol. wt. = 546.39
==Resources and Citations==
* H. Kuhn, M.Curran, "Chrome Yellow and Other Chromate Pigments", Artists Pigments, Volume 1, R. Feller (ed.), Cambridge University Press: Cambridge, 1986.
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 5423
Category:Materials database
Lead dioxide

== Description ==
A dark brown powder that occurs in nature as the mineral plattnerite. Lead dioxide is used to make the striking surface of matches, the electrodes in lead acid batteries, and as a mordant. It is also used as an oxidizing agent in the manufacture of dyes.
== Synonyms and Related Terms ==
lead (IV) oxide; brown lead oxide; anhydrous plumbic acid; lead peroxide; lead superoxide; magistry of lead; precipitated oxide of lead; plattnerite; oxid olovièitý (Ces.); plumbic acid (when hydrated)
== Risks ==
* Fire risk in contact with organic materials. 
* Toxic by inhalation or ingestion. 
* Skin contact may cause irritation or ulcers. 
* Carcinogen, teratogen, suspected mutagen. 
* Fisher Scientific: SDS
==Physical and Chemical Properties==
Soluble in hydrochloric acid with the evolution of chlorine. Soluble in dilute nitric acid in the presence of peroxide or oxalic acid. Soluble in hot alkaline solutions and glacial acetic acid.
Composition 	PbO2
CAS 	1309-60-0
Melting Point 	290 C (dec)
Density 	9.38g/ml
Molecular Weight	mol. wt. = 239.2
==Resources and Citations==
* 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
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 5424
* Wikipedia: http://en.wikipedia.org/wiki/Lead_dioxide (Accessed Feb. 2, 2006)
Category:Materials database
Lead drier

== Description ==
Organic salts of lead used to speed the curing time of drying oils. Lead driers act as a polymerization catalyst, curing the film evenly. It is sometimes mixed with cobalt driers to aid in hardening the lower portions of an oil film. Examples of lead driers are: lead acetate, lead linoleate, lead oleate, and lead naphthenate. Some lead pigments also act as driers, such as lead oxide and basic basic lead carbonate. Because of laws banning the use of lead additives, lead driers are no longer commonly used. Replacement driers include salts of calcium and zirconium.
== Synonyms and Related Terms ==
siccative; secativo de plomo (Esp.); siccatif base de plomb (Fr.); secativo de chumbo (Port.)
== Risks ==
Toxic by inhalation or ingestionSkin contact may cause irritation or ulcers.Carcinogen, teratogen, suspected mutagen.
== Resources and Citations ==
* Guy Weismantel, Guy Weismantel, Paint Handbook, McGraw-Hill Book Company, New York, 1981
Category:Materials database
Lead formate

== Description ==
A white corrosion product that forms on lead exposed to formic acid or formaldehyde. Lead formate has been found in oil-based paintings (Švarcová et e. 2020)
[[[SliderGallery rightalign|Lead formate.TIF~FTIR (MFA)]]]
== Risks ==
* Poisonous
* American Elements: SDS
==Physical and Chemical Properties==
* Prisms or needles. 
* Slightly soluble in water. Insoluble in alcohol.
Composition 	PbC2H2O4
Melting Point 	190 C (dec)
Density 	4.63 g/ml
Molecular Weight	297.25
==Resources and Citations==
* Švarcová S, Kočí E, Bezdička P, Garrappa S, Kobera L, Plocek J, Brus J, Šťastný M, Hradil D. Uncovering lead formate crystallization in oil-based paintings. Dalton Trans. 2020 Apr 28;49(16).
* The Merck Index, Susan Budavari (ed.), Merck Research Labs, Whitehouse Station, NJ, 12th Edition, 1996 Comment: entry 5243
Category:Materials database
Lead glass

== Description ==
Glass containing lead oxide as one of its ingredients. Lead oxide acts as both a flux and a stabilizer typically replacing some of the calcium in a potash glass. Lead glass contains about 18–35 mol% PbO, compared to modern lead crystal that contains a minimum of 24% lead oxide. The addition of lead oxide to glass increases the refractive index (from about 1.5 to 1.7) giving the glass its optical brilliance. The earliest known example of lead glass is a blue glass fragment from Nippur dated to 1400 BC containing 3.66% PbO. 
See also potash-lead glass and leaded glass.
== Synonyms and Related Terms ==
litharge glass; verre au plomb (Fr.); vetro al piombo (It.); loodglas (Ned.); vidro de chumbo (Port.)
Category:Materials database
Lead glaze

== Description ==
A simple, low firing glaze used on soft paste ceramics. Lead glazes may be sprinkled or thinly painted on a clay body. Lead glazes are used on clay that can be fired below its volatilization temperature of about 1150C. Lead glazes produce a lustrous, opaque surface, but they are no longer in common use because of the potential for lead poisoning. Examples of lead salts used as glazes are: lead antimonate (Naples yellow), basic lead carbonate, lead chromate, lead oxide, lead silicate, and lead sulfate.
== Synonyms and Related Terms ==
glaure au plomb (Fr.); loodglazuur (Ned.); vidrado de chumbo (Port.)
== Risks ==
* Toxic by inhalation or ingestion. 
* Skin contact may cause irritation or ulcers.
* Carcinogen, teratogen, suspected mutagen.
== Resources and Citations ==
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 445
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* Henry Hodges, Artifacts: An Introduction to Early Materials and Technology, Ronald P. Frye, Kingston, Canada, 1988
* Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
* Art and Architecture Thesaurus Online, https://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000
Category:Materials database
Lead iodide

== Description ==
A bright yellow powder that is made from the reaction of lead acetate and potassium iodide. Lead iodide is sensitive to light. Lead iodide is used for bronzing, gold pencils, ormolu, printing, photography, and cloud seeding.
== Synonyms and Related Terms ==
lead (II) iodide
== Risks ==
* Toxic by inhalation or ingestion. 
* Noncombustible. 
* Skin contact may cause irritation or ulcers. 
* Carcinogen, teratogen, suspected mutagen. 
* Fisher Scientific: MSDS
==Physical and Chemical Properties==
Soluble in concentrated alkalis, sodium thiosulfate and potassium iodide solutions. Slightly soluble in hot water and aniline. Insoluble in ethanol or cold hydrochloric acid.
Composition 	PbI2
CAS 	10101-63-0
Melting Point 	402 C
Density 	6.16 g/ml
Molecular Weight	mol. wt. = 461.05
Boiling Point 	954 C
==Resources and Citations==
* 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 5248
Category:Materials database
Lead monoxide

== Description ==
A heavy yellow powder that is named litharge and massicot. Litharge is the oxidized product of molten lead that has been stirred or atomized to incorporate air then cooled and ground to form the yellow powder. The name massicot is used for both the native mineral as well as the lead monoxide product made by heating lead carbonate to 300C. Lead monoxide has been used a a drier in oil and as a low-fire flux in making ceramics and glass. It is also used as a yellow pigment in paints and glazes. Massicot was used as an artists pigment from the 15th through the 18th centuries (Mayer 1969). Thin layers of lead monoxide are used to produce iridescent colors on brass and bronze. It has also been used as a filler for rubber and to produce artificial tortoiseshell and horn. Litharge is mixed with glycerolto make plumber's cement.
[[[SliderGallery rightalign|LithargeUCL.jpg~Raman|MassicotUCL.jpg~Raman|PIG284.jpg~XRD|f284sem.jpg~SEM|f284edsbw.jpg~EDS]]]
== Synonyms and Related Terms ==
lead (II) oxide; monóxido de plomo (Esp.); monoxyde de plomb (Fr.); litharge (Fr.); monóxido de chumbo (Port.); litharge; massicot; yellow lead oxide; plumbous oxide; yellow lead oxide; protoxide of lead; semi-vitreous oxide of lead; lithargyron; plumbum ustum
== Risks ==
* Toxic by inhalation or ingestion. 
* Skin contact may cause irritation or ulcers. 
* Carcinogen, teratogen, suspected mutagen. 
* ThermoFisher: SDS
==Physical and Chemical Properties==
Soluble in acetic acid, dilute nitric acid and alkalis. Insoluble in water and ethanol. Turns gray on exposure to sulfur fumes.
Composition 	PbO
CAS 	1317-36-8
Melting Point 	888 C
Density 	9.53 g/ml
Molecular Weight	mol. wt. = 223.2
== Resources and Citations ==
* R. J. Gettens, G.L. Stout, Painting Materials, A Short Encyclopaedia, Dover Publications, New York, 1966
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 545
* 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
* Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 5433
Category:Materials database
Lead naphthenate

== Description ==
A soft, clear yellowish material that is prepared by adding lead nitrate to a solution of sodium naphthenate. Lead naphthenate is a liquid at 16% lead and a solid at 37% lead. Lead naphthenate is use as a drier in oil paints and varnishes to speed the polymerization and oxidation processes. For use in oil paints lead naphthenate is usually mixed with cobalt or manganese drier otherwise it may eventually leach out of the paint. It is also used as a wood preservative and an insecticide.
== Synonyms and Related Terms ==
lead salt of cyclohexanecarboxylic acid
== Risks ==
* Toxic by inhalation or ingestion
* Combustible. 
* Skin contact may cause irritation or ulcers. 
* Carcinogen, teratogen, suspected mutagen. 
* LookChem: SDS
==Physical and Chemical Properties==
Soluble in ethanol.
Composition	C7H12O2-xPb
CAS 	61790-14-5
==Resources and Citations==
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
Category:Materials database