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Diisononyl phthalate

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Diisononyl phthalate Basic information
Diisononyl phthalate Chemical Properties
Safety Information
MSDS
Diisononyl phthalate Usage And Synthesis
  • UsesA widely used chemical with potential thyroid-disrupting properties. Used in toxicology studies as well as risk assessment studies of food contamination that occurs via migration of phthalates into foodstuffs from food-contact materials (FCM).
  • UsesGeneral purpose plasticizers for PVC applications and flexible vinyls.
  • DefinitionChEBI: The diisononyl ester of benzene-1,2-dicarboxylic acid.
  • General DescriptionOily colorless liquid with a slight ester odor. Denser than water. Insoluble in water.
  • Air & Water ReactionsInsoluble in water.
  • Reactivity ProfileDiisononyl phthalate reacts exothermically with acids to generate isononyl alcohol and phthalic acid. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by interaction with caustic solutions. Flammable hydrogen is generated by mixing with alkali metals and hydrides. Can generate electrostatic charges. [Handling Chemicals Safely, 1980. p. 250].
  • Health HazardProduces no ill effects at normal temperatures, but may give off irritating vapors at high temperatures.
  • Fire HazardDiisononyl phthalate is combustible.
  • Purification MethodsWash the ester with aqueous Na2CO3 then shake it with water. Ether is added to break the emulsion, and the solution is washed twice with water, and dried (CaCl2). After evaporating the ether, the residual liquid is distilled three times under reduced pressure. It is stored in a vacuum desiccator over P2O5. [Beilstein 9 IV 3183.]
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