The freezing point of diisopropylamine (DIPA) is reported to be below -60°C. This indicates that DIPA remains in a liquid state even at extremely low temperatures, making it suitable for various industrial applications where low-temperature stability is crucial.
Understanding Diisopropylamine (DIPA)
Diisopropylamine (DIPA) is a secondary amine with the empirical formula C6H15N. It is widely recognized for its distinctive physical and chemical properties, which contribute to its utility in diverse industrial sectors, particularly in the production of agricultural chemicals and pharmaceuticals. Its molecular structure, featuring two isopropyl groups attached to a nitrogen atom, gives it specific characteristics such as a relatively low boiling point and a very low freezing point.
Key Physical Properties of Diisopropylamine
Understanding the physical properties of diisopropylamine is essential for its safe handling, storage, and application. These properties define its behavior under various conditions.
Here is a summary of DIPA's key physical properties:
| Property | Value |
|---|---|
| Empirical Formula | C6H15N |
| Specific Gravity at 20ºC | 0.715-0.720 |
| Refractive Index at 20ºC | 1.393 |
| Boiling Point | 84°C |
| Freezing Point | Below -60°C |
Interpreting the Freezing Point
The reported freezing point of below -60°C signifies that diisopropylamine has a very low solidification temperature. This characteristic is beneficial in applications where the chemical needs to remain liquid and flowable in cold environments. For practical purposes, it means DIPA is highly resistant to freezing under typical atmospheric conditions, including those experienced in cold climates. This property minimizes the risk of pipeline blockages or storage issues due to solidification.
Other Significant Properties
- Boiling Point (84°C): DIPA has a relatively low boiling point, meaning it vaporizes readily at moderate temperatures. This property is important for processes involving distillation or solvent recovery.
- Specific Gravity (0.715-0.720 at 20ºC): Being less dense than water, DIPA will float on water, which is a consideration for spill management and storage.
- Refractive Index (1.393 at 20ºC): This property is useful for quality control and identification purposes, as it is a unique optical characteristic of the substance.
Applications of Diisopropylamine
Given its distinct properties, diisopropylamine finds applications in several industries:
- Agricultural Chemicals: It is used in the synthesis of herbicides and pesticides.
- Pharmaceuticals: DIPA serves as a key intermediate in the production of various pharmaceutical compounds.
- Corrosion Inhibitors: Its chemical structure allows it to function as a corrosion inhibitor in certain systems.
- Rubber Processing: It can be utilized as an accelerator in the vulcanization of rubber.
- Solvents: Due to its solvent properties, it is employed in specific extraction and purification processes.
In conclusion, diisopropylamine exhibits a very low freezing point, ensuring its stability and usability across a wide range of temperatures, which is a critical factor in its industrial utility.
