Inder Pal Singh Kapoor

Bio: Inder Pal Singh Kapoor is an academic researcher from Deen Dayal Upadhyay Gorakhpur University. The author has contributed to research in topics: Thermal decomposition & Thermogravimetry. The author has an hindex of 15, co-authored 49 publications receiving 706 citations. Previous affiliations of Inder Pal Singh Kapoor include Indian Institute of Technology Roorkee.

Preparation, characterization and crystal structure of phenylene-1,3-diammonium sulfate

Abstract: The preparation, characterization and crystal structure of phenylene-1,3-diammonium sulfate are reported here. The compound crystallizes in the triclinic space group P-1 with unit cell dimensions a =9.017 (1) A, b =11.682 (1) A, c =16.678 (1) A, α=100.56(1), β=103.25 (1), γ=111.44 (1), Z= 6, D x = 1.508 g cm -3 . The structure forms very complicated hydrogen bonded net. This sulfate salt gives 2,4-diaminobenzenesulfonic acid on thermolysis, which is used in organic syntheses, dyestuffs and sulfa drugs.

Synthesis, characterization and thermal decomposition of di-(2,4,6-trimethylanilinium) sulphate

Abstract: Di-(2,4,6-trimethylanilinium) sulphate [2,4,6-TMAS] was synthesized by reaction of 2,4,6-trimethylaniline with concentrated sulphuric acid at room temperature. The crystal structure of this salt was determined using single crystal X-ray diffraction. It crystallizes in orthorhombic space group Pna21, a= 7.7115(1) Å, b= 30.3746 (6) Å, c=16.9251 (3)Å , α=β=γ [°]=90°, V=3964.43 (12)A and Z=8. The structure contains 2,4,6-trimethylanilinium ions that share vertices through intermolecular Hbonds with sulphate ions and a water molecule. Notably thermal and microwave heatings of di-(2,4,6TMA)S have afforded 3-amino-2,4,6-trimethylbenzenesulphonic acid (3-A-2,4,6-TMBSA) with release of a molecule of amine and water. It has been suggested that the proton transfer from anilinium to SO4 2ion is a primary and rate controlling step. Further di-(2,4,6-TMA)S and 3-A-2,4,6-TMBSA were characterized by infrared, mass spectrometry, elemental and thermogravimetricdifferential scanning calorimetric (TG-DSC) analyses. The mean value for the energy of activation (83.0 kJ mol) for the conversion of di-(2,4,6-TMA)S to 3-A-2,4,6-TMBSA has been determined from isothermal thermogravimetry data.

Preparation, crystal structure and thermal decomposition of phenylenediammonium dichloride salts †

Abstract: Phenylene-1,2-diammonium dichloride (P-1,2-DADCI), phenylene-1,3-diammonium dichloride (P-1,3-DADCI), phenylene-1,4-diammonium dichloride (P-1,4-DADCl) and 5-carboxyl-phenylene-1,3-diammonium dichloride (5-carboxyl-P-1,3-DADCI) salts have been prepared and characterized by elemental, spectral, gravimetric and X-ray crystallography. Thermal decomposition of these salts has been studied by TG and DSC and shows involvement of proton transfer as a primary step. Kinetic analysis of TG data has been evaluated by model fitting method and model free isoconversional methods.

Kinetics of Thermolysis of Ring-Substituted Arylammonium Perchlorates.

Abstract: Ring-substituted arylammonium perchlorates have been prepared and characterized gravimetrically. Thermal and explosive characteristics or these salts are studied by TG and explosion delay measurements. The explosion temperatures (ET), energies or activation for decomposition (E d ), and explosion (E * ) were round to be linearly related with pK a values or the corresponding arylamines. Further, these parameters have also been round to be related with Hammett substituent constant (a). The proton-transfer process seems to be the primary step involved during decomposition and explosion reactions or these salts

Sulfonation of arylamine part-5 : Preparation and thermal decomposition of di-m-chloroanilinium sulfate

Abstract: hite crystalline solid of di-m-chloroanilinium sulfate (di-m-C1AS) was obtained when m-chloroaniline and conc. sulfuric acid were mixed together in the ratio of 1:1 or 2:1 at room temperature. Thermal decomposition of di-m-ClAS gave two isomeric chloroaminobenzenesulfonic acids (sulfonated products) and kinetics for the same was evaluated using both isothermal and non-isothermal TG data. Di- m-ClAS seems to decompose by N-H bond heterolysis prior to sulfonation.

Energetic nitrogen-rich salts and ionic liquids.

Abstract: Energetic salts offer many advantages over conventional energetic molecular compounds. The use of nitrogen containing anions and cations contributes to high heats of formations and high densities. Their low carbon and hydrogen content gives rise to a good oxygen balance. The decomposition of these compounds is predominantly through the generation of dinitrogen which makes them very promising candidates for highly energetic materials for industrial or military applications.

Food applications of natural antimicrobial compounds

Abstract: In agreement with the current trend of giving value to natural and renewable resources, the use of natural antimicrobial compounds, particularly in food and biomedical applications, becomes very frequent. The direct addition of natural compounds to food is the most common method of application, even if numerous efforts have been made to find alternative solutions to the aim of avoiding undesirable inactivation. Dipping, spraying and coating treatment of food with active solutions are currently applied to product prior to packaging as valid options. The aim of the current work is to give an overview on the use of natural compounds in food sector. In particular, the review will gather numerous case-studies of meat, fish, dairy products, minimally processed fruit and vegetables and cereal-based products where these compounds found application.