Isophorone, physical properties

Isophorone. Isophorone (3,5,5-trimethyl-2-cyclohexen-l-one) is a cycHc a,P-unsaturated ketone derived from the trimeri2ation of acetone. It has a light yellow color and a disagreeable camphoraceous odor. It has the tendency to discolor and form residues on prolonged storage. Isophorone is completely miscible with organic solvents, and other physical properties are Hsted ia Table 1. 

Isophorone diamine (IPDA), 10 395 14 588 cis, Irares-Isophoronediamine physical properties of, 2 500t Isophorone dienamine-acrylonitrile reaction, 13 438... 

Physical and Chemical Properties. Physical and chemical properties are essential for estimating the partitioning of a chemical in the environment. Many physical and chemical properties are available for isophorone, but most do not have extensive experimental descriptions accompanying the data therefore, an evaluation of the accuracy of the data is difficult. Specifically, measured vapor pressure, K°°, and Henry s Law constant at environmentally significant temperatures would help to remove doubt regarding the accuracy of the estimated data. The data on physical properties form the basis of much of the input requirements for environmental models that predict the behavior of a chemical under specific conditions, including hazardous waste landfills. The data on the chemical properties, on the other hand, can be useful in predicting certain environmental fates of this chemical. 

TABLE 2. Physical properties of polyhexamethyleneguanidine derivatives prepared by reacting the Step 1 pre-polymer with isophorone diisocyanate. 

The physical and chemical properties of isophorone are presented in Table 3-2. 

Private Consultant, Albany, NY Dr. Bhola N. Banerjee, Private Consultant, Potomac, MD and Dr. Judith S. Beilin, Private Consultant, Washington, DC These experts collectively have knowledge of isophorone s physical and chemical properties, toxicokinetics, key health end points, mechanisms of action, human and animal exposure, and quantification of risk to humans. All reviewers were selected in conformity with the conditions for peer review specified in the Superfund Amendments and Reauthorization Act of 1986, Section 110. 

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