Results 141 to 150 of about 73,345 (178)
A Green Approach to Starch Modification by Solvent-Free Method With Betaine Hydrochloride
International Journal of Biological Macromolecules, 2021 In this study, a novel simple and eco-efficient, semi-dry method with a spray system for starch modification has been developed. Compared to conventional semi-dry methods, this method does not use solvents so that no slurry or semi-liquid mixture is ...
Marija Vukčević +2 more
exaly +5 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Biochimica Et Biophysica Acta - General Subjects, 2001
Raman vibrational spectroscopy, at 298 K, has been used to study the hydration of betaine hydrochloride and betaine in the concentration range 0.5-2 M. The observed changes in the internal vibrations of the solutes, namely, in the C=O, COO- and C-H stretchings, and in the components of the O-H stretching band are consonant with anionic water-betaine ...
Antonio Amorim Da Costa
exaly +3 more sources
Raman vibrational spectroscopy, at 298 K, has been used to study the hydration of betaine hydrochloride and betaine in the concentration range 0.5-2 M. The observed changes in the internal vibrations of the solutes, namely, in the C=O, COO- and C-H stretchings, and in the components of the O-H stretching band are consonant with anionic water-betaine ...
Antonio Amorim Da Costa
exaly +3 more sources
Calculation of the Vibrational Spectra of Betaine Hydrochloride
Journal of Molecular Structure, 1997Abstract The molecular geometries of betaine hydrochloride, BET·HCl, and free protonated betaine, BET·H + , were calculated with the 6–31G(d,p) basis set at the SCF, MP2 and DFT levels of theory. At the SCF level, the minimum energy corresponds to the ionic pair, B + Htctdot;A − , however, the equilibrium Otctdot;Cl distance is 0.14 A shorter than ...
Mirosław Szafran
exaly +2 more sources
Journal of Chemical Thermodynamics, 2014 The densities (ρ) and speeds of sound (u) of betaine hydrochloride (B.HCl) drug (0.01 to 0.06) mol · kg−1 in (0.10, 0.20 and 0.30) mol · kg−1 aqueous d(+)-glucose and sucrose solutions are reported as a function of temperature at T = (293.15 to 313.15) K
Akash Gupta +2 more
exaly +2 more sources
Structure and Vibrational Spectra of Pyridine Betaine Hydrochloride
Journal of Molecular Structure, 1997Abstract The crystal structure of pyridine betaine hydrochloride (PBET·HCl) was determined by X-ray diffraction to be monoclinic, space group P2 1 c with a = 8.533(2) A , b = 9.548(2) A , c = 10.781(2) A , β = 107.228(3)° and Z = 4.
Mirosław Szafran
exaly +2 more sources
Crystal structure of BIS(Betaine) hydrochloride monohydrate
Journal of Molecular Structure, 1990Abstract Bis(betaine) hydrochloride monohydrate, 2Me 3 NCH 2 COO·HCI·H 2 O, crystallizes in space group Pnma (No. 62), with a =11.904(1), b =22.454(5), c =5.624(1) A, and Z =4. The structure has been refined to RinF =0.046 for 863 observed (| F o ||>6σ| F o |) Mo K α data. the carboxylate groups of a pair of betaine molecules are bridged by
Xiao-Ming Chen, Thomas C.W. Mak
openaire +2 more sources
Spectroscopic and Theoretical Studies of Bis(Dimethylphenyl Betaine) Hydrochloride Monohydrate
Vibrational Spectroscopy, 2015Abstract Bis(dimethylphenyl betaine) hydrochloride monohydrate was prepared and characterized by FTIR, Raman spectroscopes, and B3LYP/6-311++G(d,p) calculations. In the optimized structure of the complex, two betaine moieties are joined by a very strong asymmetric hydrogen bond with an O⋯O distance of 2.439 A.
Zofia Dega-Szafran +2 more
exaly +2 more sources
Structure of a new form of betaine hydrochloride
Acta Crystallographica Section C Crystal Structure Communications, 1990C 5 H 12 NO 2 + •Cl − cristallise dans Cm avec a=10,578, b=6,9383, c=5,7052 A, β=111,45 o , Z=2; affinement jusqu'a R I =0,048. Bien que la molecule qui contient une liaison hydrogene O-H...Cl, occupe un site de symetrie m dans (I) et n'ait que la symetrie miroir approchee dans (II), les longueurs et angles de liaison mesures dans les deux formes ...
W. H. Yip, R. J. Wang, T. C. W. Mak
openaire +1 more source
Potentiometric Batch and Flow Injection Analysis of Betaine Hydrochloride
Annali di Chimica, 2007AbstractNovel PVC membrane electrodes for the determination of betaine ion based on the formation of betaine‐tetraphenylborate (Be‐TPB) and betaine‐phosphotungstate (Be‐PT) ion‐exchangers as electroactive materials are described. The sensors show a fast, stable, near Nernstian response for 6.92 × 10‐6 to 7.94 × 10‐3 M and 1.0 × 10‐4 to 1.0 × 10‐2 M ...
Sayed S, Badawy +2 more
openaire +2 more sources
Thermochimica Acta, 2014 Densities (ρ) and speeds of sound (u) of betaine hydrochloride (B.HCl) drug (0.01–0.06) mol kg−1 in (0.10, 0.20 and 0.30) mol kg−1aqueous NaCl and KCl solutions have been reported as a function of temperature at T = (293.15 –313.15) K and at atmospheric ...
Ramesh Gardas +2 more
exaly +2 more sources