heptafluorobutyric acid CAS 375-22-4, heptafluorobutyric acid, CAS 375-22-4
In the vast world of chemistry, perfluorobutyric acid has a unique and important position. Perfluorobutyric acid, also known as heptafluorobutyric acid, has a molecular formula of C₄HF₇O₂. From a physical property point of view, its melting point is -17.5℃.
375-22-4
C4HF7O2
214.04
206-786-3
Chemical Name | Heptafluorobutyric Acid |
Other Name | Heptafluorobutyricacid; Heptafluorobutyric acid anhydride; Perfluorobutanoic acid |
CAS | 375-22-4 |
EINECS | 206-786-3 |
Type | Synthetic material intermediates; Organic raw materials |
Molecular Formula | C4HF7O2 |
Molecular Weight | 214.04 |
Melting point | -17.5 °C |
Boiling point | 120 °C755 mm Hg(lit.) |
density | 1.645 g/mL at 25 °C(lit.) |
vapor density | 7 (vs air) |
vapor pressure | ~10 mm Hg ( 25 °C) |
refractive index | n20/D 1.3(lit.) |
Fp | 120-121°C |
storage temp. | Store below +30°C. |
form | Powder |
pka | pK1:0.17 (25°C) |
Specific Gravity | approximate 1.6 |
color | Clear colorless to faint yellow |
PH | 1 (H2O, 20℃) |
Water Solubility | miscible |
Sensitive | Light Sensitive |
In the vast world of chemistry, perfluorobutyric acid has a unique and important position. Perfluorobutyric acid, also known as heptafluorobutyric acid, has a molecular formula of C₄HF₇O₂. From a physical property point of view, its melting point is -17.5℃. When the temperature drops to this value, perfluorobutyric acid will change from liquid to solid; its boiling point is 120℃, which means that at standard atmospheric pressure, when the temperature reaches 120℃, it will boil from liquid to gas. Its relative density is 1.651, which means that it is heavier than many common substances and exhibits unique behavior when mixed or layered with other substances. Its refractive index is 1.3032, and this optical property is of great significance in its related detection and analysis.
At room temperature, perfluorobutyric acid appears as a colorless liquid, and its appearance is not much different from ordinary liquid substances, but it has a smell similar to butyric acid, which can help people to initially identify it to a certain extent. Moreover, perfluorobutyric acid is highly acidic, which enables it to exhibit unique properties in chemical reactions and react with a variety of substances.
The chemical properties of perfluorobutyric acid are very stable, which lays the foundation for its application in many fields. It can undergo a salt-forming reaction and combine with suitable substances under specific conditions to form salt compounds; esterification reaction is also a common type of reaction, which generates ester products by reacting with other substances such as alcohols; substitution reactions can also proceed smoothly, and specific atoms or groups in its molecules can be replaced by other atoms or groups; dehydration reaction is also one of its possible reactions, which can remove water molecules under certain conditions; in addition, it can also undergo a reduction reaction with alcohol hydroxyl groups.
From a structural point of view, perfluorobutyric acid can be regarded as a product obtained by replacing all hydrogen atoms in the butyric acid molecule with fluorine atoms. This special structure gives it unique chemical properties.
In terms of industrial preparation, perfluorobutyric acid adopts the electrochemical fluorination method. Specifically, butyryl chloride is used as the starting material, and then it participates in the electrolytic fluorination reaction with water and hydrogen fluoride. In this process, the anode will produce corresponding products. After a series of rigorous subsequent treatment steps such as neutralization and acidification, perfluorobutyric acid can be obtained.
Perfluorobutyric acid has a wide range of uses. In the field of surfactants, it has an outstanding performance and can effectively reduce the surface tension of liquids, so that liquids can spread and wet better on various interfaces. At the same time, it can also be used as an insecticide to prevent and control pests by virtue of its own chemical properties; in terms of ester catalysis, it can accelerate the rate of ester synthesis reaction and improve reaction efficiency; as an acidifier, it can adjust the pH of the system and create a suitable acidic environment for certain chemical reactions; it is also an important organic intermediate, playing a key bridge role in the complex network of organic synthesis; in addition, in the process of synthetic rubber, it can also play a unique role and affect the performance and quality of rubber.
Perfluorobutyric acid and its derivatives are a class of extremely valuable chemical intermediates. In the synthesis of new drugs, they can participate in the reaction as intermediates to help build the unique structure of drug molecules; in the manufacture of gunpowder, they can provide support for the performance optimization of gunpowder; in the fragrance industry, they can also help create fragrances with unique aromas. Not only that, they can also be used as raw materials or part of raw materials for the synthesis of new natural materials, providing a basis for the development of new materials. At the same time, they can also act as natural solvents in some special dissolution and reaction systems.
For example, when perfluorooctanoic acid (related fluorinated substances) is introduced into polymer molecules as a fluorinated group reagent, fiber textiles with waterproof and dustproof properties can be made. This specially treated fiber textile has a wide range of application prospects in many fields such as outdoor equipment and protective clothing, fully demonstrating the huge potential of perfluorobutyric acid and its related substances in the field of materials science.
Among the numerous compounds in the field of chemistry, heptafluorobutyric acid (HBFA) is like a brilliant pearl. With its unique chemical properties, it has demonstrated extraordinary application value in many aspects. Among them, it is usually ingeniously used for detoxifying neuropeptides, and the realization of this application is largely attributed to its astonishingly excellent resolution.
In the process of splitting SB-223070 by high performance liquid chromatography, heptafluorobutyric acid plays a crucial role - as a volatile ion-pair reagent. This special application fully exploits the unique advantages of heptafluorobutyric acid, enabling it to play an irreplaceable role in this field.
Heptafluorobutyric acid, from its chemical nature, is a substance with strong acidity. It occupies an important position in the vast field of logical chemistry and has many similarities with trifluoroacetic acid (TFA). Whether in high-performance liquid chromatography or advanced analytical and detection methods such as gas chromatography/mass spectrometry (GC/MS), heptafluorobutyric acid has demonstrated outstanding performance.
It is worth mentioning that the solid acidic characteristics of HFBA are particularly prominent. This characteristic is like a precise "key", ensuring that other acidic groups on biomolecules (such as carboxylic acids) can always remain protonated. In this way, biomolecular samples are like obtaining a "pass", enabling them to smoothly achieve perfect connection with organic solvents in complex processes such as reversed-order chromatography.
Not only that, because HFBA has a relatively long alkyl chain, this makes it have stronger hydrophobicity than TFA. This feature enables HFBA to function more skillfully when dealing with samples with strong hydrophobicity, providing strong support for related research and analysis work.
In the actual scientific research and application fields, HFBA (0.1%) has been successfully used as the mobile phase for HPLC/ LC-MS detection of the side cells of aquatic plankton microorganisms. This application provides a more accurate and reliable analytical method for the study of lateral cells of aquatic planktonic microorganisms. Meanwhile, the LC/ ESI-MS technology has also been fully applied. Through this technology, researchers have deeply explored the effects of various acids, including HFBA, on the reverse phase separation of complete proteins, providing more valuable information for protein research.
In addition, remarkable achievements have also been made in the improvement of peptide stepwise sequencing methods. The improved version of a peptide step sequencing method composed of allyl isothiocyanate and HFBA reported in this article has brought new hope for the research and analysis of peptide substances.
Heptafluorobutyric acid, as an ion-pair reagent used in reversed-phase high-performance liquid chromatography, has a very wide range of applications. It plays a crucial role in the research field of proteins and peptides. Whether it is the sequencing of proteins and peptides, their synthesis process, or even the dissolution stage, heptafluorobutyric acid is like a silent and dedicated "assistant", providing a strong guarantee for the smooth progress of related work.
In high-performance liquid chromatography analysis, heptafluorobutyric acid has shone particularly brightly. It is used as a mobile phase modifier, which can significantly improve the selectivity of the analysis and make the analysis results more accurate and reliable. Meanwhile, it is also an effective additive for zinc electrodeposition, providing new ideas and methods for the optimization and improvement of the zinc electrodeposition process.
The use of perfluorobutyric acid as a mobile phase modifier has demonstrated significant advantages in histone HPLC analysis. It is like a magical "magician", ingeniously enhancing the selectivity of histone HPLC analysis, making the originally complex analysis process clearer and more accurate. Moreover, it is also used as an ion-pair reagent and plays a significant role in the preparation and evaluation of retention period high-performance liquid chromatography (HPLC).
In addition to the above applications, perfluorobutyric acid and its by-products, as an important type of chemical intermediate, also have broad application prospects. They can serve as intermediates for new types of drugs, gunpowder and spices, providing rich materials for the research and development and production in these fields. Meanwhile, they can also be used as raw materials or additives for synthesizing new types of natural polymer products, injecting new vitality into the research and development of new materials. Not only that, they themselves also have the ability to serve as organic solvents, further expanding their application scope.