What are amphoteric surfactants?

Surface-active compounds with both acidic and alkaline properties are known as amphoteric surfactants. Amphoteric surfactants are used in personal care products (e.g. hair shampoos and conditioners, liquid soaps, and cleansing lotions) and in all-purpose and industrial cleaning agents.

Which of the following is amphoteric surfactant?

Others types such as hydroxy-imidazoline and N- alkyl betaine type exhibit cationic properties upon acidicity. Another example is sulfonic acid type betaine and phosphonyl group betaine amphoteric surfactants used in shampoos; at all pH values, they exhibits anionic.

What is surfactant and its types?

The answer is yes, there are four different types of surfactants which are nonionic, anionic, cationic, amphoteric. These surfactants differ in composition and polarity. Surfactants also known as surface active agents, are used to lower the surface tension between liquids.

How do you tell if a surfactant is cationic or anionic?

The head of an ionic surfactant carries a net charge. If the charge is negative, the surfactant is more specifically called anionic; if the charge is positive, it is called cationic. If a surfactant contains a head with two oppositely charged groups, it is termed zwitterionic.

How is imidazole used in metal affinity chromatography?

One of the applications of imidazole is in the purification of His-tagged proteins in immobilised metal affinity chromatography (IMAC). Imidazole is used to elute tagged proteins bound to nickel ions attached to the surface of beads in the chromatography column.

Which is the correct formula for the compound imidazole?

Imidazole is an organic compound with the formula C 3N 2H 4. It is a white or colourless solid that is soluble in water, producing a mildly alkaline solution. In chemistry, it is an aromatic heterocycle, classified as a diazole, and has non-adjacent nitrogen atoms.

How is imidazole produced in a photolysis reaction?

Imidazole can be synthesized by the photolysis of 1-vinyltetrazole. This reaction will give substantial yields only if the 1-vinyltetrazole is made efficiently from an organotin compound, such as 2-tributylstannyltetrazole. The reaction, shown below, produces imidazole when R 1 = R 2 = R 3 = hydrogen.

What kind of applications can imidazole be used for?

Imidazole itself has few direct applications. It is instead a precursor to a variety of agrichemicals, including enilconazole, climbazole, clotrimazole, prochloraz, and bifonazole.