Acetic acid(CAS64-19-7) and glacial acetic acid(GAA) are two forms of the same compound, but they differ in their concentration, purity and physical properties. In this article, we will explore the similarities and differences between these two substances, as well as their uses and applications.
What is Acetic Acid?
Acetic acid is a weak organic acid with the chemical formula CH3COOH. It is one of the most common acids in nature, found in vinegar, fruits, vegetables, dairy products and fermented foods. It has a pungent odor and a sour taste. It is also used as a solvent, preservative, disinfectant, flavoring agent and chemical reagent.
Acetic acid can exist in different concentrations, depending on the amount of water present in the solution. The concentration of acetic acid is usually expressed as a percentage by mass or by volume. For example, vinegar is a dilute solution of acetic acid that contains about 5% acetic acid by volume.
What is Glacial Acetic Acid?
Glacial acetic acid is a term that refers to highly concentrated acetic acid with a purity level of 99% or higher. It is called “glacial” because it solidifies at low temperatures, resembling ice. The freezing point of glacial acetic acid is 16.7°C, which is lower than the freezing point of water.
Glacial acetic acid is a colorless, viscous liquid that has a strong odor and a corrosive effect on metals and organic materials. It is used as an industrial solvent, an intermediate in chemical synthesis, a catalyst in polymerization reactions and a reagent in analytical chemistry.
Comparison Between Acetic Acid and Glacial Acetic Acid
The following table summarizes some of the main differences between acetic acid and glacial acetic acid:
| Property | Acetic Acid | Glacial Acetic Acid |
|---|---|---|
| Concentration | Varies from 1% to 80% | 99% or higher |
| Purity | Contains water and other impurities | Contains less than 1% water |
| Physical State | Liquid or solid depending on temperature | Liquid at room temperature, solid below 16.7°C |
| Odor | Mild to strong depending on concentration | Very strong |
| Corrosiveness | Mild to moderate depending on concentration | Very high |
| Uses | Food, medicine, household, laboratory | Industry, chemistry, research |
Conclusion
Acetic acid and glacial acetic acid are two forms of the same compound that differ in their concentration, purity and physical properties. Acetic acid is a weak organic acid that is widely used for various purposes, while GAA is a highly concentrated and pure form of acetic acid that is mainly used for industrial and scientific applications.
How to Buy glacial acetic acid?
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