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I have not tried that one but it looks ok

http://www.thelabrat.com/protocols/SchiffsReagent.shtml

Peter Skalinski

SFS Seoul

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13y ago

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What is the molecular formula of schiff reagent?

The molecular formula of Schiff reagent is C20H15N3. It is a chemical reagent used for detecting the presence of aldehydes or ketones in organic compounds.


Equation of formaldehyde schiff's reagent benzaldehyde schiff's reagent and acetone schiff's reagent?

Formaldehyde Schiff's reagent: It is a solution of formaldehyde and sulfuric acid, used to detect the presence of aldehydes. The equation involves the formation of a colored compound with aldehydes. Benzaldehyde Schiff's reagent: Benzaldehyde can act as a Schiff's base with primary amines to form imines. The reaction results in the formation of a colored compound. Acetone Schiff's reagent: Acetone can react with a primary amine to form a Schiff's base, leading to the formation of a colored compound.


How do you decolourise schiffs reagent?

To decolorize Schiff's reagent, you can add a reducing agent like sodium metabisulfite or sodium bisulfite dropwise until the color disappears. This process helps to reverse the original color change caused by the reagent reacting with aldehydes or other carbonyl compounds.


Why should benzidine reagent be freshly prepared?

Benzidine reagent should be freshly prepared to ensure accuracy and reliability of the results. It is prone to oxidation and degradation over time, which can lead to false positive or negative test outcomes. Freshly prepared benzidine reagent will provide the most accurate and consistent results in tests.


What is principle of schiffs test?

The Schiff's reagent, which is a mixture of fuchsin-sulfurous acid, is used to detect the presence of aldehydes or compounds with free aldehyde or ketone groups in a sample. When the reagent reacts with the aldehyde group, it forms a magenta-colored complex due to the reduction of the fuchsin dye. This color change is the basis of the Schiff's test, indicating the presence of aldehydes in the sample.


How is bradys reagent prepared?

Brady's reagent is 2,4-Dinitrophenylhydrazine, its synthesised via aromatic nucleophilic substitution of 1-chloro-2,4-dinitrobenzene and hydrazine (in form of hydrazine sulphate). Its an SN2 reaction i believe. Not too sure about the mechanism yet =\


How is ninhydrine reagent prepared?

Ninhydrin reagent is prepared by dissolving ninhydrin powder in a solvent such as ethanol or acetone. The solution is typically heated gently to aid dissolution. It is important to prepare fresh ninhydrin reagent before use to ensure its effectiveness in detecting amino acids.


What is hinsberg reagent?

Hinsberg's reagent is benzenesulphonyl chloride. Prepared by chlorosuk


Why anthrone reagent needs to be kept cold before using?

Anthrone reagent is prepared in concentrated sulfuric acid. Adding reagents to acid causes immediate dissociation of the reagent and releases heat. If your solution weren't cold, it could generate enough heat to blow out of the flask or bottle.


How do you prepare chromic acid reagent?

Chromic acid reagent is prepared by dissolving chromium trioxide in water. It should be handled with caution as it is a strong oxidizing agent and can be corrosive. It is commonly used in laboratory settings for oxidation reactions.


How do you prepare Dragendorff's Wagner's and mayer's reagents reagent?

(Wagner's reagent is used to test for alkaloids). To prepare Wagner's reagent; Dissolve 2g of iodine and 6g of KI in 100ml of water. -Atolani Olubunmi, Nigeria


How do you prepare baljet reagent?

Baljet reagent is typically prepared by dissolving 2.5g of sodium nitrate and 2.5g of bismuth subnitrate in 50ml of distilled water. This solution is then added dropwise to 100ml of concentrated sulfuric acid with stirring. It is important to handle the reagents with care due to the corrosive nature of sulfuric acid.