56189-79-8

Basic information

• Product Name: 1,4-Benzenediamine,radicalion(1+),conjugatemonoacid(9CI)
• Synonyms: 1,4-Benzenediamine,radicalion(1+),conjugatemonoacid(9CI)
• CAS NO: 56189-79-8
• Molecular Formula: C6H8N2.H
• Molecular Weight: 109.15
• Product Categories: VARIOUSAMINE
• Mol File: 56189-79-8.mol
• Article Data: 3

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 1,4-Benzenediamine,radicalion(1+),conjugatemonoacid(9CI)(CAS DataBase Reference)
• NIST Chemistry Reference: 1,4-Benzenediamine,radicalion(1+),conjugatemonoacid(9CI)(56189-79-8)
• EPA Substance Registry System: 1,4-Benzenediamine,radicalion(1+),conjugatemonoacid(9CI)(56189-79-8)

Safety Data

• Hazardous Substances Data: 56189-79-8(Hazardous Substances Data)

Usage

Explanation

Different sources of media describe the Explanation of 56189-79-8 differently. You can refer to the following data:
1. The molecular formula represents the number of atoms of each element present in a molecule of the compound.
2. This is an alternative name for the compound, which is derived from aniline.
3. 1,4-Benzenediamine is a derivative of aniline, meaning it is structurally related and has been modified from the original compound.
4. The compound is commonly used in these applications due to its chemical properties.
5. The radical ion(1+) form of the compound has antioxidant properties, which can contribute to the stability of certain materials.
6. As a conjugate monoacid, the compound can act as the acid in a conjugate acid-base pair, which is important for its chemical reactivity.
7. Due to its chemical properties, 1,4-Benzenediamine can pose health risks if not handled properly.
8. The compound can cause skin and respiratory irritation, which is why precautions should be taken when handling and using it.
9. To minimize the risk of health hazards and irritation, proper precautions should be followed when working with 1,4-Benzenediamine.

Derivative of

Aniline

Uses

Hair dyes, rubber antioxidants, and permanent markers

Charged species

Radical ion(1+)

Antioxidant properties

Possesses antioxidant properties

Conjugate monoacid

Can serve as the acid in a conjugate acid-base pair

Health hazards

Potential health hazards

Skin and respiratory irritation

Potential for skin and respiratory irritation

Precautions

Should be taken when handling and using the compound

Upstream product

• 103303-10-2 N,N'-dichloro-1,4-benzoquinone diimine 
• 15165-86-3 H₃B*NH₂C₆H₄-4-NH₂*BH₃ 
• 7732-18-5 water 
• 106-50-3 1,4-phenylenediamine 

Relevant articles and documents

Protonation and Site of Protonation of Anilines. Hydration and Site of Protonation after Hydration

The gas-phase basicities (proton affinities) of 15 substitueted anilines were determined by measuring proton-transfer equilibria with a pulsed electron beam high-pressure mass spectrometer.The gas-phase basicities are compared with experimentally measured ionization energies of the nitrogen 1s electron.A straight-line relationship is observed for the substituted anilines that are nitrogen protonated.This line includes aniline. m-NH2-, m-MeO-, m-MeS-, m-OH-, and m-C2H5-aniline were found to have higher gas-phase basicities than those predicted by the linear relationship.These compounds are ring protonated.The energies for proton transfer from ring to nitrogen for these compounds can be estimated from the straight-line correlation.Hydration equilibria BH++OH2=BHOH2+ were measured for several protonated anilines BH+.The BH+ which are normally nitrogen protonated have hydrogen bonding energies to water which increase approximately linearly with the acidity of BH+.The ring-protonated BH+ do not fit this relationship; they have lower hydration energies.Hydration induces proton transfer from ring to nitrogen for m-MeS, m-OH, and m-C2H5.The hydrated m-MeO and m-NH2 remain ring protonated.The water molecule is expected to hydrogen bond to the neutral NH2 group of these two ions.The two hydrogens of the amino group carry fractional positive charges which make this a relatively strong hydrogen bond.The gas-phase basicities are also compared with the aqueous basicities.An approximate linear dependence is obtained for the nitrogen-protonated ions.The gas-phase substituent effect is attenuated by a factor of 4 in liquid water.

Electronic effects of the NH2BH3 group. The hydrolysis of diamine bisboranes

The hydrolysis of m- or p-phenylenediamine bisborane occurs by two consecutive first-order processes in neutral aqueous dioxane and exhibits consecutive pseudo-first-order kinetics in the same solvent containing a relatively high concentration of hydrogen ion. In neutral solution the first step is faster than the second, while the reverse is true in acid solution. These results are interpreted in terms of the substituent effects of the m- and p-NH2BH2, -NH2, and -NH3+ groups on hydrolysis of the second and originally equivalent NH2BH3 function. The acid-catalyzed hydrolysis of ethylenediamine bisborane also occurs in consecutive pseudo-first-order reactions in the region pH 2.4-3.1. Rate constants were evaluated by a graphical method and their relative values are consistent with previously proposed mechanisms for amine borane hydrolysis.