Percobaan 1 Identifikasi senyawa Fenol

Summary

In this video, Group 5 of the pharmaceutical chemistry practicum presents their experiment on the identification of venol compounds. The process involves conducting various tests, including organoleptic, solubility, and reaction tests using FeCl3, chloroform, NaOH, and the Marquis reagent. Each sample—nipagin, paracetamol, alpha naphthol, and beta naphthol—is carefully observed for physical characteristics, solubility in water and ethanol, and reactions with chemical reagents to determine their properties. The video aims to provide a comprehensive view of these practical tests in identifying venol compounds.

Takeaways

• 😀 The presentation is about identifying venol compounds in a pharmaceutical chemistry practicum.
• 😀 The group presenting the practicum consists of Deanti Krista, Aulana Ulfa Yita, Putritika Sayaran, and Pratamao Irma.
• 😀 The first test performed is the organoleptic test to observe the shape of pellets or crystals in various samples like nipagin, paracetamol, alpha-naphthol, and beta-naphthol.
• 😀 The solubility test is conducted using water and ethanol solvents, with each sample weighed at 0.1 grams.
• 😀 Samples are added to test tubes with solvents (water and ethanol), then shaken and observed for complete dissolution or not.
• 😀 The solubility test results are compared between water and ethanol solvents.
• 😀 A reaction test with FeCl3 (Ferric Chloride) is done by adding 5 drops of FeCl3 to each sample, observing color changes in the solution.
• 😀 Another reaction test involves using chloroform (CHCl3), water, and NaOH or KOH, with a specific set of drops added to observe the color change.
• 😀 The fourth reaction test involves the Marquis reagent, adding 5 drops of the reagent to each sample to observe any color changes.
• 😀 The presentation concludes with a thank you, hoping that the video helps the audience understand the practical tests better.

Q & A

What is the title of the pharmaceutical chemistry practicum presented in the script?

The practicum is titled 'Identification of Venol Compounds'.

Who are the presenters of the practicum?

The presenters are Deanti Krista, Aulana Ulfa Yita, and Putritika Sayaran Pratamao Irma.

What is the purpose of the organoleptic test in the practicum?

The organoleptic test is conducted to observe the shape of the pellet or crystal of the samples, which include nipagin, paracetamol, alpha naphthol, and beta naphthol.

What is measured during the solubility test in solvents?

The solubility test measures how well each sample dissolves in two different solvents: water and ethanol.

How are the samples prepared for the solubility test?

Each sample is weighed to 0.1 grams, and then the solvent (water or ethanol) is added to the test tube, shaking the mixture to observe whether the sample dissolves completely.

What are the two solvents used in the solubility test?

The two solvents used are water and ethanol.

What is the role of FeCl3 2m in the reaction test?

FeCl3 2m is added to each sample to observe any color changes in the solution, which can indicate the presence of certain compounds or functional groups in the sample.

What is the purpose of adding chloroform, water, and NaOH (or KOH) in the reaction test?

The purpose is to perform a reaction test that involves adding chloroform, water, and NaOH to the sample to observe any chemical reactions or color changes, helping to identify specific compounds.

How many drops of NaOH are used in the reaction test with chloroform?

Ten drops of NaOH (2m) are used in the reaction test.

What is the final test conducted in the practicum, and what is its purpose?

The final test is the Marquis reaction test, where Marquis reagent is added to the sample solution to observe color changes. This test helps to identify the presence of certain alkaloids and other compounds.