nyuuzyou/wikis huggingface dataset:
Sodalite

== Description ==
A blue, glassy mineral of sodium aluminum silicate that has been used as a gemstone and for ornamentation. Sodalite was discovered in Greenland in 1806. It is produced in soda rich magmas and other deposits have been found near Vesuvius, in Norway, Romania, Portugal, Russia, Bolivia, Brazil, Canada (Ontario, Quebec, British Columbia) and the U.S. (Maine). Sodalite resembles lapis lazuli, but is harder and does not contain the gold colored iron pyrite flecks. Hackmanite, a variety of sodalite, fades to white when exposed to light but will regain its dark blue color when left in the dark.
== Synonyms and Related Terms ==
scapolite; Princess blue; hackmanite; sodalita (Esp.); sodalite (Fr., Port.); Sodalit (Deut.)
[[[SliderGallery rightalign|SODALITE PMA.TIF~FTIR (PMA)|sodaliteRS.jpg~Raman (Rasmin)]]]
==Physical and Chemical Properties==
* Cubic system found as masses or rarely as dodecahedrons. 
* Fracture = conchoidal to uneven 
* Cleavage = poor
* Luster = vitreous to greasy
* Streak = white 
* Fluorescence = patchy orange or red in LW and SW; may have yellowish phosphorescence 
* Birefringence = none
* Flame = yellow (sodium color)
Composition 	Na4Al3(SiO4)3Cl
Mohs Hardness 	5.5 - 6.0
Density 	2.14-2.50 g/ml
Refractive Index	1.483-1.487
== Additional Images ==
File:ps30320sodalite2.jpg|thumb|Sodalite
File:syenitesodalitelarge.jpg|Sodalite
==Resources and Citations==
* Mineralogy Database: Sodalite
* Gem Identification Lab Manual, Gemological Institute of America, 2016.
* Jack Odgen, Jewellery of the Ancient World, Rizzoli International Publications Inc., New York City, 1982
* Frank A. Lent, Trade names and Descriptions of Marbles, Limestones, Sandstones, Granites and Other Building Stones Quarried in the United States Canada and other Countries., Stone Publishing Co, New York, 1925
* Encyclopedia Britannica, http://www.britannica.com Comment: "sodalite" [Accessed December 4, 2001].
* C.W.Chesterman, K.E.Lowe, Audubon Society Field Guide to North American Rocks and Minerals, Alfred A. Knopf, New York, 1979
* Wikipedia: Sodalite (Accessed Sept. 17, 2005 and Dec 2022)
* Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
Category:Materials database
Sodium

== Description ==
A soft, malleable metallic element. Sodium is found as salts (carbonates, chlorides, etc.) and has an abundance of 2.9% in the earth's crust. It was first isolated by Sir Humphrey Davy in 1807 by the electrolysis of sodium hydroxide. Sodium is a silvery-white metal that can be cut with a knife. It oxidizes quickly in air and reacts violently with water. Sodium compounds are used universally for electrolytic reactions, as well as for seasoning and preserving food and skins. Metallic sodium is used as a coolant in nuclear reactors and to produce the bright yellow color of Sodium vapor lamps.
== Synonyms and Related Terms ==
Na; natrium (Lat., Ned., Deut., Sven.); natrum; sodio (It., Esp.); Sódio (Port.)
== Risks ==
* Severe fire risk in contact with water; extinguish fires with dry soda or salt. 
* Ignites spontaneously in dry air. Corrosive on contact with skin. 
* United Nuclear: MSDS
== Physical and Chemical Properties ==
Flame color is bright yellow. Reacts violently with water to form sodium hydroxide and evolve hydrogen. Dissolves in liquid ammonia to form blue solution. Insoluble in benzene, kerosene and naphtha.
Composition 	Na (atomic no. 11)
CAS 	7440-23-5
Melting Point 	97.6 - 97.8 C
Density 	0.967-0.971 g/ml
Molecular Weight	atomic wt = 22.98977
Boiling Point 	881-892 C
== Resources and Citations ==
* Web Elements: Website
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: pps. 24, 735
* 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
* 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 8710
* The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
Category:Materials database
Sodium 2,4,5-trichlorophenate

== Description ==
Light brown color flakes. Sodium 2,4,5-trichlorophenate acts as a bactericide and fungicide. It has been used as a paint preservative.
== Risks ==
* Human carcinogen and teratogen. 
* Skin contact causes irritation.
* NIH: Information sheet
==Physical and Chemical Properties==
* Soluble in water, methanol, acetone.
* Composition = C6H2Cl3ONa - 1.5H2O
Category:Materials database
Sodium acetate

== Description ==
A colorless, hygroscopic powder. Hydrated sodium acetate is used in photographic emulsions as a buffer. It is also used as a mordant for dyeing textiles and as a preservative in tanning hides.
== Synonyms and Related Terms ==
sodium acetate trihydrate; Natriumacetat (Deut.); acetato de sódio (Port.)
[[[SliderGallery rightalign|sodium acetate.jpg~Chemical structure]]]
== Risks ==
* Combustible. 
* Contact may cause irritation. 
* ThermoFisher: SDS
==Physical and Chemical Properties==
Soluble in water. Slightly soluble in ethanol. Soluble in ether.
Composition 	NaC2H3O2
CAS 	127-09-3 (anhydrous)
Melting Point 	58 C
Density 	1.45 g/ml
Molecular Weight	mol. wt. = 82.04
Boiling Point 	324 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 8711
* Wikipedia: http://en.wikipedia.org/wiki/Sodium_acetate (Jan. 6 2006)
Category:Materials database
Sodium acid pyrophosphate

== Description ==
White, crystalline powder. Sodium acid pyrophosphate, SAPP, is used as a mold inhibitor in paper (Roberts and Etherington 1982). It is also used as a buffer, and sequestrant. SAPP is used as an ingredient in baking powders and metal cleaners.
== Synonyms and Related Terms ==
SAPP; disodium dihydrogen pyrophosphate; disodium pyrophosphate
==Risks==
* EChemi: SDS
==Physical and Chemical Properties==
Soluble in water.
Composition 	Na2H2P2O7 - 6H2O
Melting Point	220 C (dec)
Density 	1.862 g/ml
==Resources and Citations==
* M.Roberts, D.Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington, DC, 1982.
Category:Materials database
Sodium alginate

== Description ==
A colorless or pale yellow powder. Sodium alginate is the sodium salt of alginic acid. It is used as a food thickener and as an emulsifier in paints, dyes, and paper coatings. 
See also algin.
== Synonyms and Related Terms ==
sodium polymannuronate; sodium salt of alginic acid
[[[SliderGallery rightalign|aaiNA-ALGIN.jpg~FTIR]]]
==Physical and Chemical Properties==
Soluble in water forming a viscous gel. Insoluble in ethanol, ether and chloroform.
Composition	NaC6H7O6
CAS 	9005-38-3
== Risks ==
* Combustible.
* Fisher Scientific: MSDS
==Resources and Citations==
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 20
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* Book and Paper Group, Paper Conservation Catalog, AIC, 1984, 1989
* The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
Category:Materials database
Sodium aluminate

== Description ==
White, water-soluble powder. Sodium aluminate is used in the manufacture of lake colors. It is also used to opacify glass, harden concrete, size paper, and purify water.
== Synonyms and Related Terms ==
aluminum sodium oxide
== Risks ==
* Noncombustible. 
* Hygroscopic. 
* Skin contact causes irritation and burns. 
* CDH Fine Chemicals: SDS
==Physical and Chemical Properties==
Soluble in water forming a strongly alkaline solution. Insoluble in ethanol.
Composition 	Na2Al2O3
CAS 	1302-42-7
Melting Point 	1650 C
Density 	>1.5 g/ml
Molecular Weight	mol. wt. = 82
Category:Materials database
Sodium aluminum fluosilicate

== Description ==
White powder. Sodium aluminum fluosilicate was used as an insecticide and mothproofing agent in the 1930s for the treatment of large incoming collections (Goldberg 1996). It was sold under the brand name Larvex. Sodium aluminum fluosilicate has also been used as a buffer in dyebaths.
== Synonyms and Related Terms ==
sodium aluminum silicofluoride; sodium aluminum fluorosilicate; Larvex
== Risks ==
* Highly corrosive to galvanized iron. 
* Skin contact can cause irritation and burns.
* Fluoride Alert: Sheet
==Physical and Chemical Properties==
* Slightly soluble in water. 
* Highly corrosive to galvanized iron.
Composition	Na5Al(SiF6)4
CAS 	53404-77-6
==Resources and Citations==
* L. Goldberg, A History Of Pest Control Measures In The Anthropology Collections, National Museum Of Natural History, Smithsonian Institution, JAIC (35):23-43, 1996
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
Category:Materials database
Sodium ammonium phosphate

== Description ==
A colorless crystalline compound. Sodium ammonium phosphate was originally obtained from human urine. It was used as a blowpipe flux in the analysis of minerals.
== Synonyms and Related Terms ==
microcosmic salt; sodium ammonium hydrogen phosphate; salt of phosphorus; fusible urine salt
==Risks==
* Fisher Scientific: MSDS
==Physical and Chemical Properties==
* Soluble in water.
* Composition = NaNH4HPO4 - 4H2O
Category:Materials database
Sodium arsenite

== Description ==
A grayish white poisonous powder. Sodium arsenite was used by taxidermists in arsenical soaps for cleaning and sterilizing hides. It was also used as an insecticide for termites.
== Synonyms and Related Terms ==
sodium meta-arsenite; sodium metaarsenite
== Risks ==
* Extremely poisonous. 
* Toxic by inhalation and ingestion.
* LabChem: SDS
==Physical and Chemical Properties==
Soluble in water. Slightly soluble in ethanol.
Composition	NaAsO2
CAS 	7784-46-5
Density 	1.87 g/ml
Category:Materials database
Sodium azide test

== Description ==
A microchemical test used to identify potentially hazardous sulfur components in materials prior to their use near silver objects. The sodium azide test detects the presence of reducible sulfur but not stable sulfur compounds such as sulfates. Reducible sulfur compounds can readily tarnish silver. For the test, 3 gm of sodium azide is dissolved in 100 ml of a 0.05 M iodine solution, then mixed with 3 ml methylated spirits and allowed to set for 30 minutes. A small portion of the test sample (2 mm fiber or 200 micron particles) is placed on a glass microscope slide under a coverslip. While observing the sample with a microscope (usually 40x), the reagent is introduced under the coverslip. Reducible sulfur produces visually apparent bubbles due to the formation of nitrogen during its reaction with the sodium azide/iodine solution. Wool fibers can be used as a reference for a positive test.
== Synonyms and Related Terms ==
iodide azide test
== Risks ==
* Sodium azide is highly toxic. 
* ThermoFisher: SDS
==Resources and Citations==
* N.Odegaard, S.Carroll, W.Zimmt, Material Characterization Tests for Objects of Art and Archaeology, Archetype Publications, London, 2000.
* V. Daniels, S Ward, "A Rapid Test for the Detection of Substance which will Tarnish Silver" Studies in Conservation, 27(2), 1982, p.58-60.
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* Pam Hatchfield, Pollutants in the Museum Environment, Archetype Press, London, 2002
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 8724
Category:Materials database
Sodium benzoate

== Description ==
White granular powder. Sodium benzoate is used as an antiseptic and preservative in paints, food, and medicine. It is also used as a rust and mildew inhibitor.
== Synonyms and Related Terms ==
benzoate of soda; sodium benzoic acid; Antimol
[[[SliderGallery rightalign|sodium benzoate.jpg~Chemical structure]]]
== Risks ==
* Combustible. 
* Ingestion of large quantities is toxic. 
* Maximum allowable concentration in food is 0.1%. 
* ThermoFisher: SDS
==Physical and Chemical Properties==
Soluble in water, ethanol. Forms slightly alkaline solution in water.
Composition 	C6H5COONa
CAS 	532-32-1
Molecular Weight	mol. wt. = 144.1
==Resources and Citations==
* Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
* 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 8725
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p 777
* The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
* Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
Category:Materials database
Sodium bicarbonate

== Description ==
White, lumpy powder that is often used to make effervescent salts and beverages and as a leavening agent for baking. Sodium bicarbonate is also used in fire extinguishers and metal (gold and platinum) plating baths. Sodium bicarbonate readily absorbs stains and odors, it is used in dry-cleaning preparations for textiles, carpet, plastics, and canework. It is also used as a mild abrasive in some scouring powders. Sodium bicarbonate is used in the neutralization step of alum tawing.
== Synonyms and Related Terms ==
baking soda; sodium acid carbonate; sodium hydrogen carbonate; bicarbonate of soda
[[[SliderGallery rightalign|sodium bicarbonate.jpg~Chemical structure]]]
== Risks ==
* Fisher Scientific: SDS
==Physical and Chemical Properties==
* Soluble in water. Insoluble in ethanol.
* For a 0.1 molar solution, the pH = 8.3. 
Composition 	NaHCO3
CAS 	144-55-8
Mohs Hardness 	2.5
Density 	2.159 g/ml
Molecular Weight	mol. wt. = 84.01
Refractive Index	1.376, 1.500, 1.582
==Resources and Citations==
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 734
* Hermann Kuhn, Conservation and Restoration of Works of Art and Antiquities, Butterworths, London, 1986
* Palmy Weigle, Ancient Dyes for Modern Weavers, Watson-Guptill Publications, New York, 1974
* Photographic chemicals at www.jetcity.com/~mrjones/chemdesc.htm
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* Tom Rowland, Noel Riley, A-Z Guide to Cleaning, Conserving and Repairing Antiques, Constable and Co., Ltd., London, 1981
* R.M.Organ, Design for Scientific Conservation of Antiquities, Smithsonian Institution, Washington DC, 1968
* 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 8726
* The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
* CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: ref. index = 1.376, 1.500, 1.582
* Gordon Hanlon, contributed information, 1998
Category:Materials database
Sodium bifluoride

== Description ==
White, crystalline powder. Sodium bifluoride forms an aqueous solution that will etch glass. It is used as a disinfectant for hides and skins, a preservative for zoological specimens, and an ingredient in the production of tinplate.
== Synonyms and Related Terms ==
sodium hydrogen fluoride; sodium acid fluoride
== Risks ==
* Highly toxic. Skin contact causes irritation and burns.
* Lab Alley: SDS
==Physical and Chemical Properties==
Soluble in water.
Composition 	NaHF2
CAS 	1333-83-1
Density 	2.08 g/ml
Molecular Weight	mol. wt. = 61.99
Category:Materials database
Sodium bisulfate

== Description ==
Colorless crystals or white lumps. Sodium bisulfate is used as an inexpensive substitute for sulfuric acid in dyeing solutions. It is also used in the manufacture of paper, soap, magnesia cements, and acid-based industrial cleaners. Sodium bisulfate acts as a flux in metallurgy. It can pickle metals, carbonize wool, and bleach leather.
[[[SliderGallery rightalign|aaiNAbiSO4.jpg~FTIR|sodium bisulfate.jpg~Chemical structure]]]
== Synonyms and Related Terms ==
sodium acid sulfate; niter cake; sodium hydrogen sulfate; sodium bisulphate (Br.); sodium pyrosulfate
== Risks ==
* Strongly irritating to skin, eyes and lungs. 
* Hygroscopic. 
* Noncombustible. 
* ThermoFisher: SDS
==Physical and Chemical Properties==
Soluble in water forming an acidic solution (0.1 molar has a pH of 1.4). Decomposes in ethanol to form sodium sulfate and sulfuric acid.
Composition 	NaHSO4
CAS 	7681-38-1
Melting Point 	315 C
Density 	2.435 g/ml
Molecular Weight	mol. wt. = 120.06
Refractive Index	1.43, 1.46, 1.47
==Resources and Citations==
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 8727
* Photographic chemicals: www.jetcity.com/~mrjones/chemdesc.htm 
* CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: ref. index = 1.43, 1.46, 1.47
* 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 American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
Category:Materials database
Sodium bisulfite

== Description ==
[[[SliderGallery rightalign|sodium bisulfite.jpg~Chemical structure]]]
White crystals or powder. Sodium bisulfite is used as a disinfectant and bleach, especially for wool and leather. It is also used as a bleach, digestive aid, and antichlor in papermaking vats. Sodium bisulfite is also used in photographic developing solutions and dye baths as a reducing agent.
== Synonyms and Related Terms ==
sodium acid sulfite; sodium hydrogen sulfite; sodium metabisulfite; sodium pyrosulfite
== Risks ==
* Noncombustible. 
* Contact causes irritation and burns. 
* Toxic by ingestion. 
* Reacts with acids to evolve toxic sulfur dioxide fumes. 
* ThermoFisher: SDS
==Physical and Chemical Properties==
Soluble in water. Insoluble in ethanol.
Composition 	NaHSO3
CAS 	7631-90-5
Melting Point 	150 C
Density 	1.48 g/ml
Molecular Weight	mol. wt. = 104.06
Refractive Index	1.474, 1.526, 1.685
==Resources and Citations==
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 785
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
* The Dictionary of Paper, American Paper Institute, New York, Fourth Edition, 1980
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 8731
* A Glossary of Paper Conservation Terms, Margaret Ellis (ed.), Conservation Center of the Institute of Fine Arts, New York City, 1998
* CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: ref. index= 1.474, 1.526, 1.685
Category:Materials database
Sodium borate

== Description ==
A white, water soluble powder. Sodium borate is found in nature as borax. Borax is produced by the evaporation of water in shallow lakes. The white powder is mined from deposits in India, Russia, Iran, and and the U.S. (California). Sodium borate is used as a flux, Cleansing agent, tanning agent, fireproofing agent, and as an alkaline ingredient in glass, Ceramics, and Glazes. It is also used in the developing bath for color photographs. Sodium borates are used to kill Cockroaches, and as an antifungal agent for wood. The slow acting material has also been used to clean and provide long-term inhibition of algae, lichen, and moss on monuments (Richardson 1973).
[[[SliderGallery rightalign|sodium borate.jpg~Chemical structure]]]
== Synonyms and Related Terms ==
sodium pyroborate; borax; sodium tetraborate; disodium tetraborate; sodium biborate; tincar; tincal; Jaikin; Polybor
== Risks ==
* Noncombustible. 
* Toxic by inhalation and ingestion. 
* Hygroscopic. 
* Skin contact causes irritation and burns. 
* Science Company: MSDS
== Physical and Chemical Properties ==
Soluble in water, glycerol. Insoluble in ethanol.
Composition 	Na2B4O7
CAS 	1303-96-4
Melting Point 	741 C
Density 	2.367 g/ml
Molecular Weight	mol. wt. = 201.22
Boiling Point 	1575 C (dec)
== Resources and Citations ==
* B.A.Richardson "Control of Biological Growths", Stone Industries, 8(2):1-6, 1973.
* G.Caneva, M.P.Nugari, O.Salvadori, Biology in the Conservation of Works of Art, ICCROM, Rome, 1991
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 109
* 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
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 8733
* 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
* Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
* The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
* Photographic chemicals at www.jetcity.com/~mrjones/chemdesc.htm
Category:Materials database
Sodium borohydride

== Description ==
White, crystalline powder. Sodium borohydride reacts with many compounds as a reducing agent and an antichlor. It was introduced in the 1970s for use as a weak bleach for wood pulp, textile stains, and foxing spots (concentrations 0.01-1%). Sodium borohydride is used industrially as a scavenger for aldehydes, ketones, acids, esters, chlorides, disulfides, and nitriles in organic solutions.
[[[SliderGallery rightalign|aaiNABH4.jpg~FTIR|sodium borohydride.jpg~Chemical structure]]]
== Synonyms and Related Terms ==
sodium tetrahydroborate; sodium hydroboride
== Risks ==
* Reacts with water to produce hydrogen (highly flammable) and sodium hydroxide. 
* Hygroscopic. Slowly decomposes in moist air. 
* Flammable. Dangerous fire risk. May be explosive. 
* Contact, inhalation, and ingestion results in severe irritation and tissue burns. 
* ThermoFisher: SDS
==Physical and Chemical Properties==
Soluble in water, ethanol, ammonia, amines, pyridine. Insoluble in hydrocarbons, alkyl chloride.
Composition 	NaBH4
CAS 	16940-66-2
Melting Point 	36 C
Density 	1.07 g/ml
Molecular Weight	mol. wt. = 37.83
Boiling Point 	400 C
==Resources and Citations==
* S.Adler, "Borohydride: An Alternative to Oxidative Bleaching of Cellulosic Textiles" in Textile Specialty Group Postprints, AIC meeting, 1998. 
* I.Block, A.M.Roy, "Treatment of Cellulosic Textiles with Sodium Borohydride" ICOM Preprints, Eighth Triennial Meeting, Sydney Australia, 345-351.
* Matt Roberts, Don Etherington, Bookbinding a==Resources and Citations==nd 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
* G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p.345
* The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 8735
* Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
* Hermann Kuhn, Conservation and Restoration of Works of Art and Antiquities, Butterworths, London, 1986
Category:Materials database