why does salicylic acid give a positive test with FeCl3
Salicylic acid is considered to be a phenolic (aromatic) acid. The -OH group in salicylic acid gives a few tests of alcohols also like esterification, reaction with Na, etc.
If salicylic acid is tested with FeCl3, a violet color will be observed indicative of the presence of phenols in the compound. This test is commonly used to identify the presence of phenolic functional groups in organic compounds.
Yes. Fe is a transition metal which makes this solution acidic
The amount of FeCl3 needed depends on the concentration of the FeCl3 solution required for the test. Typically, a 2-5% solution of FeCl3 is used. To make a 100mL of 2-5% FeCl3 solution, you would need to dissolve 2-5 grams of FeCl3 in distilled water. The exact amount can be calculated using the formula: (desired % concentration/100) x volume of solution needed x molar mass of FeCl3.
The balanced equation for the reaction between salicylic acid and sodium hydroxide is: C7H6O3 + NaOH → C7H5NaO3 + H2O
salicyclic acid lauric acid palmitic acid oleic acid stearic acid
not if it is a pure form of aspirin if itt test positive (turns purple) it is impure and still has salicyclic acid
O-hydroxy benzoic acid or 2-hydroxy benzoic acid.
Salicylic acid is considered to be a phenolic (aromatic) acid. The -OH group in salicylic acid gives a few tests of alcohols also like esterification, reaction with Na, etc.
Because aspirin does not contain OH group like salicyclic acid so ferric chloride preferes to react with a compounds that have OH group.
The FeCl3 test for phenylketonuria is based on the reaction between phenylpyruvic acid in urine and FeCl3, forming a green-colored complex due to the chelation of the iron ion. This reaction is specific for detecting phenylketonuria because phenylpyruvic acid is elevated in individuals with this disorder, leading to the formation of the colored complex. The color intensity of the complex formed is directly proportional to the concentration of phenylpyruvic acid present in the sample.
If salicylic acid is tested with FeCl3, a violet color will be observed indicative of the presence of phenols in the compound. This test is commonly used to identify the presence of phenolic functional groups in organic compounds.
Yes. Fe is a transition metal which makes this solution acidic
Hcl cl- is a strong nucleophile capible of substituting the oH group of the salicyclic acid,, my best guess
Yes they do so.
The amount of FeCl3 needed depends on the concentration of the FeCl3 solution required for the test. Typically, a 2-5% solution of FeCl3 is used. To make a 100mL of 2-5% FeCl3 solution, you would need to dissolve 2-5 grams of FeCl3 in distilled water. The exact amount can be calculated using the formula: (desired % concentration/100) x volume of solution needed x molar mass of FeCl3.
The balanced equation for the reaction between salicylic acid and sodium hydroxide is: C7H6O3 + NaOH → C7H5NaO3 + H2O