What is aniline used for?

Aniline is used to make a wide variety of products such as polyurethane foam, agricultural chemicals, synthetic dyes, antioxidants, stabilizers for the rubber industry, herbicides, varnishes and explosives.

What is the formula of amino benzene?

C6H7N Aniline, also known as aminobenzene or phenylamine, has a chemical formula of C6H7N or C6H5NH2 and has 6 carbon (C) atoms, 7 hydrogen (H) atoms, and 1 nitrogen (N) atom.

What is the name of C6H5NO2?

Nitrobenzene Nitrobenzene is an organic compound with the chemical formula C6H5NO2. It is a water-insoluble pale yellow oil with an almond-like odor.

What is the common name of aniline?

aminobenzene The chemical structure of aniline is shown below. Aniline is commonly known as aminobenzene. The chemical formula of aniline is C6H5NH2or C6H7N.

What are the health effects of aniline?

Acute aniline exposure can cause confusion, ringing in the ears, weakness, disorientation, dizziness, impaired gait, lethargy drowsiness, convulsions, loss of consciousness, and coma. These effects are usually transitory and probably secondary to lack of oxygen.

Why aniline is a weaker base?

Basically, aniline is considered as the simplest aromatic amine. Now, aniline is considered as a weaker base than ammonia. This is due to the fact that the lone pair in aniline are involved in resonance with the benzene ring and hence are not available for donation to that extent as in NH3.

What will be the formula of amide?

Amide which is also referred to as carboxamide is an organic compound with the common formula RC(=O)NR′R″. Here, the R, R’, and R″ denotes hydrogen atoms or organic groups. Meanwhile, the general chemical formula for amide groups is CO-NH.

Is aniline a strong base?

A primary aromatic amine, aniline is a weak base and forms salts with mineral acids.

Why aniline is basic in nature?

The lone pair of electrons on nitrogen atom in aniline makes it base. Aniline reacts with mineral acids to form salt.

How is nitrobenzene used today?

Most of the nitrobenzene produced in the United States is used to manufacture a chemical called aniline. Nitrobenzene is also used to produce lubricating oils such as those used in motors and machinery. A small amount of nitrobenzene is used in the manufacture of dyes, drugs, pesticides, and synthetic rubber.

What is Nitrating mixture?

a mixture of concentrated nitric acid or nitrogen oxides with inorganic compounds (H2SO4, BF3, and AlCl3) or organic compounds (for example, acetic anhydride).

What is the full form of c6h5oh?

hydroxybenzene, oxybenzene, phenylic acid, phenol.

Why does Colourless aniline on storage turn brown?

Pure aniline is a colourless liquid, but the colour of aniline changes to dark brown on storage due to atmospheric oxidation.

What do you mean by aniline point?

: the lowest temperature at which aniline and a solvent (as gasoline) are completely miscible and which serves as an indication of the type of hydrocarbons present in the solvent, the content of aromatics being higher according as the temperature is lower.

Why aniline is insoluble in water?

Aniline is insoluble in water because of the large hydrocarbon part that retards the formation of an H-bond. So it is insoluble in water. Anilines are the organic compounds in the class of group coming in organic chemistry which are also called aminobenzene or phenylamine.

Is picric acid carcinogenic?

Skin contact with picric acid can cause irritation and yellow staining of the skin. Eye contact may result in irritation and damage to the eye. Can picric acid cause cancer? There are no data on whether picric acid causes cancer in humans.

What color is aniline?


Appearance Colorless liquid
Density 1.0297 g/mL
Melting point −6.3 °C (20.7 °F; 266.8 K)
Boiling point 184.13 °C (363.43 °F; 457.28 K)

Can aniline react with hemoglobin?

Aniline does not readily oxidize hemoglobin in vitro; it must be metabolized to an active form to induce methemoglobinemia (Smith 1996).

Why aniline is weaker base than ethylamine?

Aniline is a weak base than ethylamine. In aniline the electron pair of nitrogen atom is delocalised due to resonance and hence lesser available for protonation while ethylamine does not undergo resonance.

Why direct nitration of aniline is not possible?

Direct nitration of aniline is not a feasible process because nitric acid oxidizes most of aniline to give tarry oxidation products along with only a small amount of nitrated products. By doing this it gets oxidized into protonated aniline which gives 47% m-nitroaniline.

Why aniline is weakest Bronsted base?

Aniline is weakest Bronsted base among the given four compounds due to resonance present in case of aniline. Hence, lone pair of nitrogen are less available for donation to the acid.

What is the function of amide?

In primary and secondary amides, the presence of N–H dipoles allows amides to function as H-bond donors as well. Thus amides can participate in hydrogen bonding with water and other protic solvents; the oxygen atom can accept hydrogen bonds from water and the N–H hydrogen atoms can donate H-bonds.

Is amine acidic or basic?

Like ammonia, amines are bases. Compared to alkali metal hydroxides, amines are weaker (see table for examples of conjugate acid Ka values). The basicity of amines depends on: The electronic properties of the substituents (alkyl groups enhance the basicity, aryl groups diminish it).

What is the difference between amine and amide?

Amines and amides are two types of compounds found in the field of organic chemistry. The main difference between amine and amide is the presence of a carbonyl group in their structure; amines have no carbonyl groups attached to the nitrogen atom whereas amides have a carbonyl group attached to a nitrogen atom.

Why is 4 nitroaniline a weak base?

Secondly, aniline and p-nitroaniline (first two green shaded structures) are weaker bases due to delocalization of the nitrogen non-bonding electron pair into the aromatic ring (and the nitro substituent). This is the same delocalization that results in activation of a benzene ring toward electrophilic substitution.

Is pyridine strong or weak?

Pyridine is a weaker base than saturated amines of similar structure because its electron pair is in an sp2-hybridized orbital, and the electron pair is more tightly held by the atom.

Can aniline act as a Lewis base?

Due to the lone pair of electrons on N, aniline is a strong lewis base.

Which is more basic aniline or alkyl amine?

Answer: Aniline is less basic than alkylamine because in aniline phenyl group is directly linked with nitrogen atom which has electron withdrawing inductive effect due to resonance effect.

Which is least basic amine?

Basicity of amines can be explained on the basis of availability of electron density on N-atom for protonation. Because of the +I effect, alkyl group increases the electron density on N-atom in alkyl amines. However, aniline is less basic because phenyl group exerts −I effect, ie, it withdraws electrons.

Why aniline is more basic than Methylaniline?

This results in p-methoxy aniline being more basic than aniline. The basicity of m-methoxy aniline is controlled purely by inductive effects (resonance is not possible from this position). The inductively electron withdrawing methoxy group removes electron density from nitrogen, making it less basic than aniline.

Is nitrobenzene toxic?

Nitrobenzene can cause a wide variety of harmful health effects to exposed persons. Direct contact of small amounts of nitrobenzene with the skin or eyes may cause mild irritation. Repeated exposures to a high concentration of nitrobenzene can result in a blood condition called methemoglobinemia.

Is nitrobenzene flammable?


What can be made by Nitrating Methylbenzene?

The nitration of methylbenzene (toluene) You get a mixture of mainly two isomers formed: 2-nitromethylbenzene and 4-nitromethylbenzene.

Is Nitrating mixture?

A mixture of concentrated sulphuric and nitric acids, used to introduce a nitro group (–NO2) into an organic compound. Its action depends on the presence of the nitronium ion, NO2 +.

Which of following is Nitrating mixture?

Mixture of nitric acid and anhydrous zinc chloride.

What is the formula for Nitrating mixture?

Chemical Formula: HNO3 (nitric acid)

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