Aniline appears as a yellowish to brownish oily liquid with a musty fishy odor. Melting point -6°C; boiling point 184°C; flash point 158°F.

Aniline, an organic base used to make dyes, drugs, explosives, plastics, and photographic and rubber chemicals.

Exposure to 7-53 ppm aniline vapor causes slight symptoms after several hours, and concentrations greater than 100-160 ppm cause serious disturbances. As little as 1 g of ingested aniline can be fatal to humans, the mean lethal dose is 5-30 g (HSDB 2000).

Mechanism of Toxicity. Many of the aromatic amines have the ability to convert the ferrous (Fe+2) iron in hemoglobin to the oxidized ferric form (Fe+3), resulting in the formation of methemoglobin. Methemoglobin is unable to transport oxygen, resulting in signs and symptoms of oxygen deficiency.

Aniline is oily and, although colorless, it can be slowly oxidized and resinified in air to form impurities which can give it a red-brown tint. Its boiling point is 184 degree centigrade and its melting point is -6 degree centegrade….Structure for T3D4984: Aniline.

Aniline is an aromatic amine. The basicity of the aromatic amine is depending upon the availability of the lone pair. In case of aniline due to conjugation the lone pair density is less than that of methylamine. Due to this reason, aniline is less basic than methylamine.

Basicity. Aniline is a weak base. Aromatic amines such as aniline are, in general, much weaker bases than aliphatic amines. Aniline reacts with strong acids to form the anilinium (or phenylammonium) ion (C6H5-NH3+).

Aniline, a weak base, reacts with water according to the reaction represented above.

Since ammonia can easily lose electron pairs and aniline cannot, thus ammonia is considered as a stronger base than aniline. Hence, this pair is not available for donation while in case of ammonia it is available and thus aniline is less basic than ammonia.

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.

Ammonia doesn’t contain any hydroxide ions to begin with, but when it’s dissolved in water it acquires hydrogen ions from the water to produce hydroxide as well as ammonium ions. However, ammonia doesn’t fully convert into hydroxide and ammonium ions in a solution, which is why it is considered a weak base.

Aniline is a flammable liquid chemical substance that has a pungent unpleasant odor and is slightly soluble in water. It can be colorless to brown, and it is oily to the touch.

Benzylamine is an organic chemical compound with the condensed structural formula C6H5CH2NH2 (sometimes abbreviated as PhCH2NH2 or BnNH2). This colorless water-soluble liquid is a common precursor in organic chemistry and used in the industrial production of many pharmaceuticals.

Answer: c Explanation: Aniline and chloroform can be separated through the distillation process. Aniline is a toxic organic compound with the formula C6H5NH2.

Complete answer: So, we can separate the mixture of aniline and water by steam distillation. In steam distillation, the compounds that are purified are those compounds that are volatile in steam, insoluble in water, possess water pressure of about 10-15 mm Hg at 373 K, and contain non-volatile impurities.

distillate

The distillation apparatus, commonly called a ‘still’, consists of a vessel for plant material and water, a condenser to cool and condense the vapour produced and a method of collection, or ‘receiver’.

Distillation is used to purify a compound by separating it from a non-volatile or less-volatile material. Because different compounds often have different boiling points, the components often separate from a mixture when the mixture is distilled.

Distillation is a widely used method for separating the components of liquid mixtures based on the distribution of mixture constituents between liquid and vapour phase. Overall, if two components of a liquid mixture have different vapour pressures, analysts can enrich the more volatile component in the vapour phase.

The distillation process is used to separate components based on their boiling points. Chemicals like common gas, diesel, and jet fuel achieve their boiling points at different temperatures. Distillation columns are used to separate mixed feed streams into their own distinct products.