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4920315 
Journal Article 
Gas chromatographic identification of some products of hydrogenation of di(n-alkyl(C-4-C-12)) phthalates 
Dziwinski, EJ; Idczak, J; Lach, J 
2012 
Przemysł Chemiczny
ISSN: 0033-2496 
91 
10 
1947-1951 
Polish 
Phthalic anhydride was esterified with C-4-C-12 alcs. and hydrogenated on Ni/Al2O3 to resp. di(alkyl)-cis or trans-cyclohexane-1,2-dicarboxylates. The products were analyzed by gas chromatog. with mass spectroscopy to det. retention times of the individual compds. 
Engineering