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Fatty acids and free fatty acyl acids are non-volatile aliphatic monocarboxylic compounds that can be identified as soap base and are important components of fats. The quality of soap, the most common personal cleaning product, depends on the composition of saponified fatty acids.
Soaps are usually produced by reacting fats and alkaline substances. However, these chemical reactions may not take place completely and free fatty acids may remain in the soap. The amount of these free fatty acids directly affects the quality of the soap. Below are some of the consequences of high free fatty acids:
An excess of free fatty acids can lead to poor quality soap, which can lead to consumer dissatisfaction and health problems. It is therefore very important for soap manufacturers to monitor the amount of free fatty acids in their soaps.
BS 1715-2.4 covers a range of analytical methods for the measurement of free fatty acids in soaps. This standard provides reliable methods that can be used in both laboratory testing and industrial production processes.
The standard covers the following elements:
The free fatty acid content of alkali metal soaps can be determined by the analysis carried out within the scope of “BS 1715-2.4 Method for determining free fatty acid content” standards. The test results can be expressed as “Free fatty acid content or acid value”. The method of BS 1715-2.4 standard is not applicable in the presence of ethanolamine soaps.
In short, the method of BS 1715-2.4 can be expressed as a titrimetric method in which the results are expressed as either free fatty acid content or acid value.
Nanolab Laboratories Group continues to provide services within the scope of Determination of Free Fatty Acids Content. We also provide services in Soap Analysis.
Contact us for more information.
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