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5177988 
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/Al(2)O(3) 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