What is Toluidine used for?

o-Toluidine (CAS no. 95-53-4) is a synthetic chemical that is a light yellow liquid at ambient temper- ature. It is used primarily in the manufacture of dye- stuffs, although it is also used in the production of rubber, chemicals, and pesticides and as a curing agent for epoxy resin systems.

1. Is o-Toluidine toxic?
2. Where does Toluidine come from?
3. Is o-Toluidine flammable?
4. What color is o-Toluidine?
5. What is Ortho toluidine test?
6. Why o-toluidine is more basic than aniline?
7. What is toluidine blue test?
8. What is difference between toluene and toluidine?
9. Is P-toluidine an acid or base?
10. Is P-toluidine polar?
11. What does toluene dissolve?
12. Is P-toluidine combustible?
13. Is para toluidine saturated?
14. Which is more basic meta toluidine or para toluidine?

Is o-Toluidine toxic?

o-Toluidine is primarily used in the manufacture of dyes. o-Toluidine is highly toxic to humans when absorbed through the skin, inhaled as vapor, or swallowed. Acute (short-term) exposure of humans to o- toluidine affects the blood (i.e., methemoglobinemia), with clinical signs of central nervous system depression.

Where does Toluidine come from?

o-Toluidine is produced industrially by nitration of toluene to give mixture of nitrotoluenes, favoring the ortho isomer. This mixture is separated by distillation.

Is o-Toluidine flammable?

Flammable in the presence of a source of ignition when the temperature is above the flash point.

What color is o-Toluidine?

O-toluidine appears as a clear colorless or light yellow liquid. May become reddish brown on exposure to air and light. Flash point 185°F. Has about the same density as water and is very slightly soluble in water.

What is Ortho toluidine test?

Abstract. o-Toluidine, 6% (v/v) in glacial acetic acid, is used to determine glucose in biologic material after deproteinization with 3% (w/v) trichloracetic acid. A stable green color develops after heating at 100° for 10 min., and the absorbance is determined at 630 or 635 mµ.

Why o-toluidine is more basic than aniline?

Lower the pKb value, stronger is the base. Aniline has an NH2 group which readily accepts a proton to give anilinium ion. Ortho toluidine is anilinewith an additional methyl group inortho position.So the equilibrium is towards the left, making it less basic.

What is toluidine blue test?

Toluidine blue solution is used in testing for lignin, a complex organic molecule that bonds to cellulose fibres and strengthens and hardens the cell walls in plants. A positive toluidine blue test causes the solution to turn from blue to pink.

What is difference between toluene and toluidine?

is that toluene is (organic compound) a colourless, inflammable liquid hydrocarbon, methylbenzene, ch₃c₆h₅, used as a solvent, in high-octane fuels and in the production of many chemical compounds while toluidine is (organic compound) any of the three isomeric aromatic amines derived from toluene; they are used in the ...

Is P-toluidine an acid or base?

Due to the amino group bonded to the aromatic ring, the toluidines are weakly basic. The toluidines are poorly soluble in pure water but dissolve well in acidic water due to formation of ammonium salts, as usual for organic amines. ortho- and meta-toluidines are viscous liquids, but para-toluidine is a flaky solid.

Is P-toluidine polar?

It's polar because of the carboxyl group, but it's not as polar as say formic acid or acetic acid because of the size of the benzene framework.

What does toluene dissolve?

Toluene is a very good solvent because, unlike water, it can dissolve many organic compounds. In many commercial products, toluene is used as a solvent that is present in paint thinners, nail polish remover, glues, and correction fluid. ... It is also used to manufacture inks and paint thinners.

Is P-toluidine combustible?

FIRE HAZARDS

* p-Toluidine is a COMBUSTIBLE LIQUID or SOLID. * Use dry chemical, CO2, water spray, alcohol or polymer foam extinguishers.

Is para toluidine saturated?

Para toluidine is the isomer of toluidine and is an aryl amine in which a methyl group is present at the para position of an Aniline. It is aromatic and unsaturated because of the ...

Which is more basic meta toluidine or para toluidine?

As the CH₃ groups shifts electrons towards the benzene ring from para position in p-toluidine, the electron density of the ring increases, and so te lone pair of N is readily available, which makes it a good base than m-toluidine, in which the CH₃ group attached in meta position cannot show +I effect strongly, and the ...