scholarly journals Studies on the sulfur-containing chelating agents. XLVI. Hydrolysis of thio-.BETA.-diketones and related amides in acetonitrile-water mixture.

1977 ◽  
Vol 25 (1) ◽  
pp. 158-162 ◽  
Author(s):  
SHIGENORI HARADA ◽  
MINORU SAWADA ◽  
MASAHIKO CHIKUMA ◽  
AKIRA YOKOYAMA ◽  
HISASHI TANAKA
Keyword(s):  
Chelating Agents ◽  
Water Mixture ◽  
Hydrolysis Of ◽  
Sulfur Containing

ChemInform Abstract: SOME NEW SULFUR CONTAINING CHELATING AGENTS

1974 ◽  
Vol 5 (30) ◽  
pp. no-no
Author(s):  
MARK M. JONES ◽  
THOMAS H. PRATT ◽  
C. HENDRICKS BROWN
Keyword(s):  
Chelating Agents ◽  
Sulfur Containing

Salinity-induced acidification in a wetland sediment through the displacement of clay-bound iron(II)

2010 ◽  
Vol 7 (5) ◽  
pp. 413 ◽  
Author(s):  
Annaleise R. Klein ◽  
Darren S. Baldwin ◽  
Balwant Singh ◽  
Ewen J. Silvester
Keyword(s):  
Alternative Pathway ◽  
Natural Sediment ◽  
Inland Waterways ◽  
Proton Production ◽  
Murray River ◽  
Eastern Australia ◽  
Displacement Experiments ◽  
Low Sulfur ◽  
Hydrolysis Of ◽  
Sulfur Containing

Environmental context Acidification of inland waterways is an emerging issue worldwide, mostly because it disturbs the balance of reduced sulfur species in soils, sediments and mine tailings. We describe a pathway for wetland acidification through salt displacement and oxidation of Fe2+ from clay minerals. This alternative pathway for acidification raises environmental concerns because an increasing number of inland waterways are affected by increasing salinity. Abstract A wetland near the Murray River (south-eastern Australia) was found to have significant levels of exchangeable reduced iron (Fe2+) in the sediment clay-zone, and the potential for acidification under high salinity and oxidising conditions. Cation exchange experiments using purified clay from this site show relative affinities consistent with the lyotrophic series: Fe2+>Ca2+>Mg2+>H+>K+>Na+. This relative affinity is confirmed in Fe2+ displacement experiments using natural sediment clay. Proton production during oxidation of salt-treated sediments corresponds to that expected for the oxidation and hydrolysis of Fe2+ displaced from clay interlayers, taking into account the buffering properties of the sediment matrix. This work shows that wetland acidification can occur in low sulfur-containing wetlands and is not exclusively a problem associated with sulfidic sediments.

Chemistry of pyrrolic compounds. XLVIII. The chemistry of porphyrins carrying sulfur-containing substituents at a meso-carbon

1981 ◽  
Vol 34 (12) ◽  
pp. 2595 ◽  
Author(s):  
PS Clezy ◽  
CJR Fookes ◽  
GA Smythe
Keyword(s):  
Hydrolysis Of ◽  
Sulfur Containing ◽  
Ring Synthesis

The preparation of a meso-thioacetoxyporphyrin by ring synthesis from a dipyrrylthione is described together with the reaction of thiocyanogen with octaethylporphyrin and coproporphyrin 11 to give meso-thiocyanatoporphyrins. Attempts to produce meso-mercaptoporphyrins by hydrolysis of either meso-thioacetoxy- or meso-thiocyanato-porphyrins failed. Instead the corresponding disulfides were produced and the properties of this latter group are described.

Hydrolysis of cellulose into reducing sugar via hot-compressed ethanol/water mixture

2012 ◽  
Vol 42 ◽  
pp. 143-150 ◽  
Author(s):  
Cunwen Wang ◽  
Fanglei Zhou ◽  
Zhao Yang ◽  
Weiguo Wang ◽  
Faquan Yu ◽  
...  
Keyword(s):  
Reducing Sugar ◽  
Water Mixture ◽  
Hydrolysis Of Cellulose ◽  
Hydrolysis Of
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