Technical Note: Relationship between Chromium Depletion in Sensitized Alloy 600 and U-Bend Cracking in Sodium Thiosulfate Solution

CORROSION ◽  
1985 ◽  
Vol 41 (4) ◽  
pp. 242-244 ◽  
Author(s):  
R. Bandy ◽  
R. L. Sabatini
Keyword(s):  
Sodium Thiosulfate ◽  
Technical Note ◽  
Alloy 600 ◽  
Sodium Thiosulfate Solution ◽  
Chromium Depletion

Sodium thiosulfate solution spray for relief of irritation caused by Lugol's stain in chromoendoscopy

2001 ◽  
Vol 53 (2) ◽  
pp. 199-202 ◽  
Author(s):  
Hitoshi Kondo ◽  
Haruhiko Fukuda ◽  
Hiroyuki Ono ◽  
Takuji Gotoda ◽  
Daizo Saito ◽  
...  
Keyword(s):  
Sodium Thiosulfate ◽  
Sodium Thiosulfate Solution

Historical Note: Aqueous Chlorine Dioxide Bleaching at Christa Gaehde’s Studio in the 1990s

2012 ◽  
Vol 33 (3-4) ◽  
Author(s):  
Irene Brückle
Keyword(s):  
Chlorine Dioxide ◽  
Water Immersion ◽  
Sodium Thiosulfate ◽  
Deionized Water ◽  
Sodium Chlorite ◽  
Sodium Thiosulfate Solution ◽  
Treatment Sequence ◽  
Historical Note ◽  
Free Paper ◽  
Printing Inks

AbstractThe preparation and use of aqueous 0.2% chlorine dioxide as it was practiced at the private conservation studio of paper conservator Christa M. Gaehde in the 1990s is described for the record. The bleach was used predominantly on prints printed in black printing inks on machinemade lignin-free paper. The treatment sequence involved washing in deionized water; immersion in the chlorine dioxide solution or a local brush application of the bleach in the print margins; rinsing in deionized water; neutralization of residual bleach by misting 1% sodium thiosulfate solution recto and verso; four rinsing baths in deionized water, the fourth one conditioned with calcium hydroxide to pH 9. Preparation of the bleach required special precautions in handling the sodium chlorite and formaldehyde.

scholarly journals ELECTROLYTIC OXIDATION OF SODIUM THIOSULFATE SOLUTION

1974 ◽  
Vol 3 (4) ◽  
pp. 319-322
Author(s):  
Futoshi Yokosuka ◽  
Masahiro Takizawa ◽  
Akitsugu Okuwaki ◽  
Taijiro Okabe
Keyword(s):  
Sodium Thiosulfate ◽  
Sodium Thiosulfate Solution ◽  
Electrolytic Oxidation

Treatment performance of newly developed johkasous with membrane separation

2000 ◽  
Vol 41 (10-11) ◽  
pp. 197-204 ◽  
Author(s):  
H. Ohmori ◽  
T. Yahashi ◽  
Y. Furukawa ◽  
K. Kawamura ◽  
Y. Yamamoto
Keyword(s):  
Sodium Hypochlorite ◽  
Membrane Separation ◽  
Sodium Thiosulfate ◽  
Sodium Hypochlorite Solution ◽  
Sodium Thiosulfate Solution ◽  
Membrane Cleaning ◽  
Hypochlorite Solution ◽  
Treatment Performance ◽  
Different Types ◽  
High Treatment

In order to verify the treatment performance of newly developed johkasous with membrane separation, for household use, three johkasous of different types were used for experimental study. It was found that each of these johkasous has a high treatment performance for removing BOD, nitrogen, and can be operated steadily by monitoring the function and maintaining the devices at every three months and by withdrawing accumulated sludge at every six months. It was also found that periodical cleaning of the membrane by sodium hypochlorite solution and neutralizing cleaning wastewater by sodium thiosulfate solution at every six months is important to maintain a steady permeability of the membranes. No adverse effects on treatment performance was observed by leached sodium hypochlorite solution from the membrane at membrane cleaning.

Intergranular Corrosion Susceptibility of Alloy 600 after Autogenous Tungsten Inert Gas and Laser Beam Welding using Electrochemical Technique

2014 ◽  
Vol 33 (2) ◽  
pp. 137-146
Author(s):  
Geogy J. Abraham ◽  
Rajan Bhambroo ◽  
V. Kain ◽  
G. K. Dey ◽  
V. S. Raja
Keyword(s):  
Laser Beam ◽  
Intergranular Corrosion ◽  
Laser Beam Welding ◽  
Carbide Precipitation ◽  
Electrochemical Technique ◽  
Alloy 600 ◽  
Chromium Depletion ◽  
Intergranular Stress Corrosion ◽  
Corrosion Susceptibility ◽  
Intergranular Stress Corrosion Cracking

AbstractIntergranular corrosion and intergranular stress corrosion cracking is influenced by precipitation of chromium carbides at grain boundaries and formation of chromium depletion regions. The present study focuses on understanding the carbide precipitation and subsequent sensitization in the weldments of Alloy 600 using two different welding techniques. The effect of heat input on microstructure and IGC susceptibility was measured using electrochemical reactivation test. The SEM studies were done to evaluate the presence of chromium depleted regions. The carbide was indentified to be Cr7C3 using TEM. The laser beam weldments showed an increased resistance to IGC as compared to TIG weldments.

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