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alkali metals

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110447
EISBN: 978-1-62708-247-1
... Profiling of Alkali Metals in Thin SiO2 Films ,” Analytical Chemistry , vol. 89 , no. 4 , pp. 2377 - 2382 , 2017 . 10.1021/acs.analchem.6b04222 [25] Lai S. C. , Sharma P. , Otte R. , Kung J. H. , Wang Y.-h. and Chen S. , “ Application of FIB-SEM and Raman...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230019
EISBN: 978-1-62708-298-3
..., 17 to 19 wt% Al 2 O 3 , 64 to 70 wt% SiO 2 , 1 to 2 wt% alkali metal oxides, and 1 to 2 wt% Fe and other oxides. Table 3.4 lists the typical variation in chemical composition of beryl. Table 3.4 Typical variation in the chemical composition of beryl   Alkali-free beryls from pegmatites...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080409
EISBN: 978-1-62708-304-1
... 37. Keiser J.R. , DeVan J.H. , and Lawrence E.J. , J. Nucl. Mater. , Vol 85 /86, 1979 , p 295 10.1016/0022-3115(79)90505-1 38. Adamson G.M. , Crouse R.S. , and Manly W.D. , “ Interim Report on Corrosion by Alkali-Metal Fluorides ,” ORNL-2337, Oak Ridge...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430290
EISBN: 978-1-62708-253-2
... products of fuel oil contain sulfur, typically as Na 2 SO 4 . Sulfate salts concentrate at the deposit or scale interface and become partially fused because they contain alkali metals such as sodium and potassium. The deposited salt forms a film on the surface of the tube, which destroys the protective...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230107
EISBN: 978-1-62708-298-3
... . The alkali metal ions in the solution should be kept to a minimum since these contaminate the precipitate. They give a “fused” appearance to the ignited Be 2 P 2 O 7 and cause it to stick to the sides of the platinum dish. A significant advantage of the method is that it does not require phosphate...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230093
EISBN: 978-1-62708-298-3
... concentrations of iron, aluminum, or silicon [ Wright and Silver 1963 ]. Beryllium reacts readily with H 2 SO 4 and HCl. Boiling water and alkalis react with beryllium and give off hydrogen. Beryllium will react with molten alkali halides but exhibits no reaction with molten alkaline earth metal halides...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820115
EISBN: 978-1-62708-339-3
... (1200 °F). References 1. Walker R.A. and Gooch T.G. , Arc Weldability of Stainless Steels , Met. Mater. , Vol 2 ( No. 1 ), 1986 , p 18 – 24 2. Devletian J.H. and Wood W.E. , Principles of Joining Metallurgy , Metals Handbook , 9th ed. , Vol 6...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910237
EISBN: 978-1-62708-250-1
... that demand good corrosion resistance, including water, soils, acids, alkalis, saline solutions, organic compounds, sulfur compounds, and liquid metals. In some services, alloyed cast irons are the only economical material of construction. Stainless steels are iron-base alloys containing at least 11...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230055
EISBN: 978-1-62708-298-3
... ″ ( l ) = Be ( c , l ) + M ″ X 2 ( c , l ) where M′ is an alkali metal, and M″ is an alkaline earth metal. These reactions will be exothermic, and the equilibrium position will be far to the right under most conditions of operation. Magnesium metal is used...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240597
EISBN: 978-1-62708-251-8
... resistance in water and steam, molten alkali metals, and air at temperatures below 400 °C (750 °F). However, at higher temperatures, hafnium begins to react appreciably with oxygen, nitrogen, and hydrogen. The oxides and nitrides formed at these elevated temperatures tend to remain at the surfaces; however...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ems.t53730081
EISBN: 978-1-62708-283-9
..., Graphite, Diamond and Fullerenes , Knovel , 2001 8.6 Kroto H. , Heath J. , O’Brien S. , Curl R. , and Smalley R. , Nature , Vol 318 , 1985 10.1038/318162a0 Crystalline ceramics are compounds consisting of metal and nonmetal ions bonded either covalently...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080335
EISBN: 978-1-62708-304-1
..., such as lead (Pb), zinc (Zn), cadmium (Cd), arsenic (As), and tin (Sb), along with alkali metals (i.e., Na, K) that are present in MSW. These metallic elements can react with chlorine to form various chlorides that have very low melting points. Many investigators ( Ref 12 , 14 , 16 , 20 , 24 , 29 , 30...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740325
EISBN: 978-1-62708-308-9
... because of their excellent chemical resistance. They are highly resistant to both alkalis and acids with the exception of acid fluorides, which attack them rapidly and severely. Some guidelines for cleaning different contaminants are given in Table 2 . Table 2 Metal cleaning processes for removing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.tb.cub.t66910363
EISBN: 978-1-62708-250-1
... Abstract Organic coatings (paints and plastic or rubber linings), metallic coatings, and nonmetallic inorganic coatings (conversion coatings, cements, ceramics, and glasses) are used in applications requiring corrosion protection. These coatings and linings may protect substrates by three basic...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350125
EISBN: 978-1-62708-315-7
..., tendency to yellow, depending on resin Low, moderate Trade sales enamels, trim paints, exterior enamels, general metal finishing Chlorinated rubber Solvent Air dry Water, alkali, acid resistance Abrasion resistance, hardness, gloss, sensitivity to solvents Moderate Maintenance coatings, ship...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280287
EISBN: 978-1-62708-267-9
... characteristic of deposits formed on gas turbine blades and vanes is that of a sodium sulfate matrix usually containing other alkali metal or alkali earth ingredients, sometimes traces of chlorides, and infrequently (in recent years), compounds of lead and vanadium. The conditions in the combustion gas...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430351
EISBN: 978-1-62708-253-2
..., whereas oils and hydrocarbons are removed by alkaline treatment. For removal of the scale, inhibited acids are employed as solvent cleaners. At the end of the solvent cleaning stage, the scale and traces of copper are removed and the fresh metallic surface is exposed. The last step is neutralization...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080259
EISBN: 978-1-62708-304-1
... in coal is greater than 0.3%, fouling potential becomes high ( Ref 2 ). Alkali metals and chlorine can also play a significant role in high-temperature corrosion in boilers. Table 10.2 Typical mineral species found in coal Mineral species Formula Kaolinite Al 2 O 3 ·2SiO 2 ·H 2 O...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430204
EISBN: 978-1-62708-253-2
... be maintained below 50 µm. The magnetite layer must be dense and compact, almost free of porosity, and tightly adherent to the metal surface. The formation of a magnetite layer is favored when the boiler is in operation, whereas hematite forms when the boiler is out of service or in a shut-down phase...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.fibtca.t52430379
EISBN: 978-1-62708-253-2
... the tendency for corrosion and scaling. Suspended or dissolved iron from feedwater is deposited on boiler tube surfaces and can lead to tube failure. Rusted boiler tubes and condensate return (i.e., condensate water) are the main source for contamination of iron. Metallic iron remains in particle form...