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Sodium hydroxide

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Published: 30 September 2014
Fig. 6 Effect of salt concentration of sodium hydroxide and sodium chloride solutions. Source: Ref 4 More
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Published: 30 September 2015
Fig. 40 Sodium-hydroxide-base chemical stripper applied to underside of bridge deck More
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Published: 01 January 1994
Fig. 2 Effect of zinc and sodium hydroxide concentration on the cathode efficiency of noncyanide zinc solutions. Temperature: 26 °C (77 °F). ○: 7.5 g/L (1 oz/gal) Zn, 75 g/L (10 oz/gal) NaOH; ●: 7.5 g/L (1.0 oz/gal) Zn, 150 g/L (20 oz/gal) NaOH; Δ: 11 g/L (1.5 oz/gal) Zn, 110 g/L (15 oz/gal More
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004184
EISBN: 978-1-62708-184-9
... Abstract True alkaline chemicals include caustic soda or sodium hydroxide (NaOH), caustic potash or potassium hydroxide (KOH), and soda ash or sodium carbonate (Na2CO3). This article reviews alkaline chemicals and provides a basis for a general discussion on various alkaline exposures...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006489
EISBN: 978-1-62708-207-5
... to 70 °C, or 120 to 160 °F) solution of sodium hydroxide is typically used for alkaline etching. Other alkalis can be used for alkaline etching, such as potassium hydroxide, trisodium phosphate, or sodium carbonate. These chemicals are less common but occasionally used. The solution may contain more...
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Published: 01 December 2004
Fig. 20 Use of modified versions of Murakami's reagent to color delta ferrite and sigma phase in stainless steel welds. (a) Delta ferrite colored blue and brown in an austenitic matrix in type 312 stainless steel weld metal (as-welded) using modified Murakami's reagent (30 g sodium hydroxide More
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Published: 01 January 2003
). (b) Immersed in boiling 35% sodium hydroxide. Source: Ref 116 More
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Published: 01 January 2006
Fig. 4 Pictorial illustration of an imprint of device terminations on the gold lid of a ceramic package. The imprints are formed when the units are soaked in a sodium-hydroxide solution at an elevated temperature. More
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Published: 01 January 1990
Fig. 17 Useful life of plain and alloyed cast irons in acid alkaline media as a function of temperature and concentration of the corrodents. (a) Sulfuric acid. (b) Nitric acid. (c) Hydrochloric acid. (d) Sodium hydroxide More
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Published: 31 August 2017
Fig. 2 Useful life of plain and alloyed cast irons in acid alkaline media as a function of temperature and concentration of the corrodents. (a) Sulfuric acid. (b) Nitric acid. (c) Hydrochloric acid. (d) Sodium hydroxide More
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Published: 31 August 2017
Fig. 58 Useful life of plain and alloyed cast irons in acid alkaline media as a function of temperature and concentration of the corrodents. (a) Sulfuric acid. (b) Nitric acid. (c) Hydrochloric acid. (d) Sodium hydroxide More
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Published: 01 January 1989
Fig. 2 Microstructure of cast Tantung G alloy. Etched with Murakami's reagent (standard mix: 10 g sodium hydroxide, 10 g potassium ferricyanide, 100 mL H 2 O). 400×. Courtesy of G.F. Vander Voort, Carpenter Technology More
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Published: 15 December 2019
to 26 mM hydroxide from 6 min to 20 min; eluent source for chromatogram A, manually prepared sodium hydroxide eluent; eluent source for chromatogram B, EG40 eluent generator, potassium hydroxide eluent; flow rate: 0.5 mL/min; injection volume: 1 mL; temperature: 30 °C (85 °F); suppressor: ASRS More
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Published: 01 December 2004
Fig. 22 Nodular iron (Fe-3.9%C-2.9%Si-0.32%Mn-0.06%P-0.037%Mg-1.5%Ni-0.57%Cu). Silicon microsegregation was revealed. The casting was annealed. Etched with hot aqueous solution of sodium hydroxide, picric acid, and potassium pyrosulfite ( Table 2 , etchant No. 7). 500× More
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Published: 31 August 2017
Fig. 26 Nodular iron (Fe-3.9%C-2.9%Si-0.32%Mn-0.06%P-0.037%Mg-1.5%Ni-0.57%Cu). Silicon microsegregation was revealed. The casting was annealed. Etched with hot aqueous solution of sodium hydroxide, picric acid, and potassium pyrosulfite ( Table 4 , etchant No. 4). Original magnification: 500× More
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Published: 01 December 2004
and Si appear dark. (b) Deep etched using sodium hydroxide, secondary electron image. The three-dimensional shape can be correlated to the two-dimensional cross sections shown in this micrograph. Both 1500× More
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Published: 01 January 1987
Fig. 52 Effect of electrochemical potential on the stress-corrosion fracture path in a cold-worked AISI C-1018 low-carbon steel with a 0.2% offset yield strength of 63 MPa (9 ksi). The steel was tested in a 92- °C (198- °F) aqueous 33% sodium hydroxide solution. At a potential of E = −0.76 V More
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Published: 01 December 2004
Fig. 23 Comparison of etch-attack and electrochemical methods of polishing tungsten, a representative refractory metal. (a) Polishing by an etch-attack technique using Al 2 O 3 abrasive suspended in an aqueous solution of potassium ferricyanide (KCN) and sodium hydroxide (NaOH). (b) Polishing More
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Published: 01 January 1994
3.5 82 180 3–10 Sulfuric acid 18.0 3 Chromate dip Chromic sulfate 0.2 Ambient 1–6 Potassium dichromate 14.4 Sodium hydroxide 7.75 (a) Vapor degreasing may be used instead of alkaline cleaning. (b) Either inhibited or mildly etching (uninhibited) cleaners can More
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Published: 01 January 1994
3.5 82 180 3–10 Sulfuric acid 18.0 … … … 3 Chromate dip Chromic sulfate 0.2 Ambient Ambient 1–6 Potassium dichromate 14.4 … … … Sodium hydroxide 7.75 … … … (a) Vapor degreasing may be used instead of alkaline cleaning. (b) Either inhibited or mildly etching More