Polarographic and Chronopotentiometric Behavior ofo-Phthalic Acid in Acidic Solutions.

1963 ◽  
Vol 35 (12) ◽  
pp. 1853-1859 ◽  
Author(s):  
R. P. Buck
Keyword(s):  
Phthalic Acid ◽  
Acidic Solutions

Determination of phthalic acid esters in imitation jewellery and investigation of their migration risk

2013 ◽  
Vol 30 (7) ◽  
pp. 647-653 ◽  
Author(s):  
Ying LAI ◽  
Zongping HUANG ◽  
Xiuxiu GE ◽  
Rui LIN ◽  
Hexiu CHEN
Keyword(s):  
Phthalic Acid ◽  
Phthalic Acid Esters ◽  
Acid Esters

Chemodynamics, transport behaviour and treatment of phthalic acid esters in municipal landfill leachates

1998 ◽  
Vol 38 (2) ◽  
pp. 185-192 ◽  
Author(s):  
M. J. Bauer ◽  
R. Herrmann ◽  
A. Martin ◽  
H. Zellmann
Keyword(s):  
Particulate Matter ◽  
Aquatic Environment ◽  
Phthalic Acid ◽  
Phthalic Acid Esters ◽  
Landfill Leachates ◽  
Transport Behaviour ◽  
Ethylhexyl Phthalate ◽  
Dissolved Phase ◽  
Acid Esters ◽  
Long Chain

Large amounts of phthalic acid esters (PAEs) are leached from plastics dumped at municipal landfills. This leachate transports PAEs either adsorbed on particulate matter or in dissolved phase. Dissolved organic macromolecules, mainly humic-like substances, enhance the solubility of PAEs. In the biochemical environments of municipal landfills short chain PAEs can be degraded by base-catalyzed hydrolysis or by microorganisms which enzymatically split the side chains. However, there is no cleavage of the aromatic ring. Long chain PAEs like di-(2-ethylhexyl) phthalate are neither degraded abiotically nor by microorganisms. Hence, these PAEs can be leached and washed out of leaky landfills into the groundwater and thus continue to be a threat to the aquatic environment. Only a combined UV radiation/ozonation treatment is capable of fully destroying PAEs.

Ribosylierung mono- und bicyclischer Dicarbonsäureimide / Ribosylation of Mono- and Bicyclic Dicarboxylic Acid Imides

1988 ◽  
Vol 43 (5-6) ◽  
pp. 397-402
Author(s):  
Kurt-Peter Raezke ◽  
Hermann Frister ◽  
Eckhard Schlimme
Keyword(s):  
Nmr Spectroscopy ◽  
Dicarboxylic Acid ◽  
Phthalic Acid ◽  
Cyclic Imides ◽  
Tin Tetrachloride

The N-trimethylsilyl compounds of the cyclic imides derived from cis-cyclohexan-1,2-dicarboxylic acid, cis-4-cyclohexen-1,2-dicarboxylic acid and phthalic acid were prepared. Reaction of the N-silylated cyclic imides 2 and 10 with 1,2,3,5-tetra-O-acetyl-β-ᴅ-ribofuranose in the presence of tin tetrachloride yielded the appropriate unusual ribonucleosides 4 and 12 whereas 14 led only to traces of the ribosylated derivative. The silylation and ribosylation sites in the aforementioned bicyclic imides were proved by 1H, 13C, and 29Si NMR spectroscopy and compared with data found for the monocyclic imides N-succinimide and N-maleinimide.

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