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What is the reagent of Pauly?

The reagent used in Pauly's reaction is α-naphthol and concentrated hydrochloric acid. This reagent system is used to test for the presence of indole-like compounds in organic molecules.


What are the ingredients in Ehrlich's indole reagent?

Ehrlich's reagent, used to detect the presence of indole compounds, typically consists of p-dimethylaminobenzaldehyde dissolved in a strong acid, such as hydrochloric acid or sulfuric acid.


What is Lucas reagent?

This is a mixture of concentrated hydrochloric acid and anhydrous zinc chloride (which acts as a catalyst). To prepare, mix 136.29 g of anhydrous zinc chloride (ZnCl2) with 105 g of concentrated hydrochloric acid (HCl). Place beaker in an ice bath, due to the exothermic reaction. Stir with a glass rod until all ZnCl2 is dissolved.


What are the differences between acetic acid and hydrochloric acid in terms of their chemical properties and uses?

Acetic acid and hydrochloric acid differ in their chemical properties and uses. Acetic acid is a weak acid found in vinegar, while hydrochloric acid is a strong acid used in industrial processes. Acetic acid is commonly used in food preservation and as a cleaning agent, while hydrochloric acid is used in metal cleaning and as a chemical reagent.


Hydrochloric acid formula and use?

The formula for hydrochloric acid is HCl. It is commonly used in laboratories as a reagent to test the presence of metal carbonates and as a cleaning agent for various applications due to its strong acidic properties.


How do you prepare kedd's reagent?

To prepare Kedde's reagent, mix equal volumes of concentrated hydrochloric acid and 5% potassium dichromate solution. The reagent is used to test for the presence of fatty acids in a substance, where a positive test results in the formation of a layer of orange crystals.


What is the purpose of the NaNO2 when preparing the Pauly reagent?

In the presence of sodium nitrite and hydrochloric acid, sulfanilc acid form a diazonium salt. This salt react with and is an indicator for thyrosine, histidine.


What reagent is reacted with zinc carbonate to form zinc chloride?

Hydrogen Chloride gas --> HCl or Hydrochloric Acid --> HCl(aq)


What is a laboratory acid called?

A laboratory acid is typically referred to as a reagent or a chemical solution. Examples of laboratory acids include sulfuric acid, hydrochloric acid, and nitric acid. These acids are commonly used in scientific experiments and analyses.


What is Lukas's reagent?

Lucas' reagent is a solution of anhydrous zinc chloride in concentrated hydrochloric acid used to classify low molecular weights of alchohols. In 1930, this test became the standard method in qualitative organic chemistry.


What are some of the uses of hydrochloric acid?

Hydrochloric acid is commonly used for cleaning and removing rust from metals, adjusting the pH levels in pools and in the production of PVC. It is also used in the food industry for regulating acidity and as a chemical reagent in various industrial processes.


Which acid and which other chemical would you use to make sodium chorlide?

Sodium chloride is formed from a neutralization reaction between an acid and a base. The acid is hydrochloric acid and the other reagent would be a sodium base or a basic salt of sodium.