Physical and Chemical Properties:
|Physical state and appearance ||Solid |
|Odor ||Mild phenolic |
|Molecular Weight ||228.29 g mol−1 |
|pH (1% soln/water) ||NE |
|Color ||Slight yellow liquid with camphor odor |
|Boiling Point ||220 °C (493 K) / 4 mmHg |
|Flash point ||227°C |
|Melting Point ||158 to 159 °C (430 K) |
|Specific Gravity ||0.923 @ 20° C |
|Vapor Pressure ||41 PA @ 20° C |
|Vapor Density ||5.7 |
|Odor Threshold ||0.2 PPM |
|Solubility ||12G/L @ 20° C |
|Acidity (as acetic acid) ||wt% 0.01 max. |
|Purity (total ketone), wt% ||99 min |
|Water content ||0.1 max. |
- In the construction industry, Isophorone is used as corrosion protection on bridges, scaffolding or sluices.
- Isophorone is added to automobile paint and it improves the properties of fuel and oil filters as a special coating for paper.
- Isophorone is used as an intermediate in manufacturing mainly polyurethane field compounds such as Isophorone Diamine, Isophorone Di isocyanate. It is also used as a chemical intermediate and as an ingredient in wood preservatives and floor sealants.
- Isophorone is used as a solvent in some printing inks, paints, varnishes, lacquers, adhesives, copolymers, PVC, coatings, finishing and pesticides. It is a preferred solvent for many natural and synthetic polymers, resins, fats, and oils.
- It is also used in formulating Pesticides, Herbicides as an inert ingredient. It is used in vinyl chloride/acetate-based coating systems for metal cans, other metal paints, nitrocellulose finishes, and printing inks for plastics.
- Isophorone can be prepared by :
- Passing acetone vapor over a catalyst bed of magnesium aluminate, zinc oxide-bismuth oxide, or calcium oxide under pressure at 300-400°C.
- Reacting acetone, water (up to 30%), and potassium hydroxide (≅1%) in a column under a pressure of about 35 atm and at a temperature of about 200°C (Papa and Sherman 1981). Commercial isophorone usually contains some unconjugated isomer (up to 5%) and small amounts (
- Isophorone tends to discolor on prolonged storage; stabilization against color formation can be provided by treatment with p-toluenesulfonic acid, acidified Fuller's earth, diazines, or diisopropylamine.