The presence of an absorption band at 695 cm1 suggests that the resin contains a sorbitolbased clarifier that can interfere with the. Diethylene glycol concentration in the standard solutions for the calibration curve were 1. The absorption and fluorescence spectra of ethylene glycol and glycerol solution induced by uv light were studied respectively in the present paper. Ethylene glycol polyethylene glycol egpeg mixtures. Raman and infrared spectra of ethylene glycol springerlink. The absorption at wavelengths less than 220 nm is due to hfip z iiz 280 figure 2 absorption spectrum of 0.
Determination of percent ethylene in ethylenepropylene. Osa vibrational overtone spectroscopy of ethylene glycol. The vibrational overtone spectra of ethylene glycol diacrylate egda and ethylene glycol dimethacrylate egdma monomers and corresponding polymers were recorded in the spectral range 450015000 cm. The national institute of standards and technology nist uses its best efforts to deliver a high quality copy of the database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. The infrared and raman spectra of liquid doch 2 2 od and hocd 2 2 oh were recorded and interpreted. Raman and infrared spectra of ethylene glycol indian academy of. Infrared spectra were collected on mixtures of ethylene glycol eg and polyethylene glycol 600 peg600 as a function of. Ethylene glycol dimethacrylate is a diester that is formed by the condensation of ethylene glycol and methacrylic acid and used primarily in free radical copolymer crosslinking reactions. It is used to make antifreeze and deicing solutions for cars, airplanes, airport runways, and boats. The raman spectrum and the infrared spectrum in the 6504000 cm. Alkoxy ethanols, di and triethylene glycol monoalkyl ethers were synthesized from the respective alcohols and the corresponding ethylene glycols 3.
Top, infrared spectrum, references data from nist standard reference database 69. Attenuated total reflectance spectra of ethylene glycol monoethyl ethercamontmorillonite complex. Midinfrared spectroscopic investigation of the perfect. These results shown that the retention times of ethylene glycol were 3. Figure 1 roomtemperature absorption spectrum of 5 x 10i m by monomer pet in hfip. Study on the absorption and fluorescence spectra of.
As a result, an assignment of the vibrational spectrum of liquid ethylene glycol is. Article views are the countercompliant sum of full text article downloads since november 2008 both pdf and html across all institutions and individuals. S1n106 ethylene glycol dimethyl ether s1n107 2ethylaminoethanol s1n108 ethylene glycol monoethyl ether s1n109 cyclohexane s1n110 cyclohexene s1n111 pyridine s1n112 2,3dihydro4hpyran. Propylene glycol 1, 2propanediol is an organic compound a diol alcohol, usually a tasteless, odorless, and colorless clear oily liquid that is hygroscopic and miscible with water, acetone, and chloroform. The ftir polymer spectra are available as pictures. Fourier transform infrared spectra for peg a, agpeg for the stirring. Detection of adulteration of glycerol with diethylene. Cook c a department of chemistry, eckerd college, 4200 54th. State of irremovable water in solid polymer films examined. I would like to explain the number of peaks in this spectrum, and assign them to the proton spins present in the molecule. Observation of conformational changes in ethylene glycolwater. The large numbers of peaks in each spectrum can be arranged into a. This sweet tasting organic compound can be used as an antifreeze, a desiccant, as a protecting group for carbonyls during chemical synthesis, and as a preservative for biological specimens. Ethylene glycol is the major component of antifreeze preparations.
Ethylene glycol is odorless, but has a sweet taste. Solventfree esterification of stearic acid and ethylene. The infrared absorption spectrum of glyc01 was studied. The most intense absorption wavelength for both of. Synthesis and characterization of polyethylene glycol mediated. Infrared spectra of glycerin based cough syrup and diethylene glycol. Infrared spectra cm of liquid ethylene glycol monoethyl ether egme, egmecac12 mixture, and. Ethylene carbonate, also known as ethylene glycol carbonate, is an organic compound used as a polar solvent and as a high permittivity component of electrolytes in lithium batteries.
Ethylene glycol polyethylene glycol applied spectroscopy. Cook c a department of chemistry, eckerd college, 4200 54th avenue south, st. Infrared spectra were collected on mixtures of ethylene glycol eg and polyethylene glycol 600 peg600 as a function of weight fraction from pure eg to pure. This sweet tasting organic compound can be used as an antifreeze, a desiccant, as a. Pdf vibrational spectra and conformational composition. Spectroscopic and computational studies of aqueous ethylene glycol solution surfaces elizabeth l. Absorption and fluorescence spectra of polyethylene. Our experimental techniques have been described in previous papers. Ethylene glycol eg and other glycolss1,2propylene glycol 1,2pg, 1,3propylene glycol 1,3pg, and 2,3butylene glycol 2,3bgsare widely used as components of antifreeze liquids and of other.
Ethylene glycol is widely used to inhibit the formation of natural gas clathrates hydrates in long multiphase pipelines that convey natural gas from remote gas fields to a gas processing facility. Even in textile industries as a softener, egds is in demand. The labeled bands demonstrate orientation of the clay see text. I have the spectrum obtained by an nmr analysis of ethylene glycol. Ethylene glycol distearate egds is extensively used in the pharmaceutical and cosmetics industries. The flamegard 5 uvir and flamegard 5 msir are mounted on a moving cart on wheels with 10 ft. Vibrational spectra and conformational composition of ethylene glycol dinitrate in solid phases. Infrared spectra, ab initio calculations, vibrational analysis and conformations of 5 matrix isolated isotopic modifications. The purpose of this research was to investigate the effect of relative humidity rh, drug loading and polymer molecular weight on the stability of the amorphous nifedipinepolyethylene. Ethylene glycol is a colorless liquid that can be in the air in vapor form. Ir spectra of irradiated cometary ice analogues containing. Infrared spectra and rotational isomerism of mono, di, and tri. The spectra of acetylene, ethylene and ethane have been investigated with gratings in the region between 2 and 15 each gas shows a more or less characteristic type of structure for its vibrationalrotational. Investigation of water diffusion in lowdensity polyethylene by attenuated total reflectance fourier transform infrared spectroscopy and twodimensional correlation analysis.
Despite this impeding effect, the disappearing bands could be assigned to hydrogen. The ftir spectra of following polymers were collected. Seven of the glycol ethers were ineffective as antileukemic agents, including ethylene glycol, the monopropyl, monobutyl, and monophenyl ethylene glycol ethers, diethylene glycol, and the. Therefore, in this paper we present measurements of midir spectra for these molecules at low tempera. Spectrum offers ethylene glycol useful in a huge variety of lab applications and available in many forms and grades. This region contains the most important conformationrelated bands. Ethylene glycol fuel is continuously burning on a 1x1 sq ft fire pan, and it is stationed at a fixed spot. Ethylene glycol is a liquid inhalation ethylene glycol is a colorless liquid. The vibrational spectrum of ethylene glycol sciencedirect. Attenuated total reflectance fourier transform infrared atrftir spectra of ethy lene glycolwater abbreviated as egh2o mixtures were. The raman spectrum of ethylene glycol has been investigated in the liquid and solid states and also in aqueous solutions. Only one spectrumcompound covering the mentioned spectral range typical text information about the sample includes when available. The infrared absorption spectra of acetylene, ethylene and.
S2 on the basis of the agreement of the excitation spectrum with. The infrared absorption spectrum of the liquid has been recorded. Trace determination of glycols by hplc with uv and. The ir spectrum of l in this range shows two bands. Nist chemistry webbook the national institute of standards and technology nist uses its best efforts to deliver a high quality copy of the database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. Attenuated total reflectance infrared atr ir spectrum of ethylene glycol with properties. As reported previously, the ir spectra of ethylene glycol in ar and xe matrices are unstable under ir illumination. Petersburg, fl 33711, usa b code 691, nasagoddard space flight center, greenbelt, md 20771, usa c department of physics, astronomy, and geophysics, connecticut college, new london. Vibrational spectra and conformational composition of ethylene glycol dinitrate in solid phases article pdf available in journal of applied spectroscopy 486. Ethylene glycol may be used in the preparation of spiroborate esters by reacting with chiral 1,2aminoalcohols in the presence of. Ir characterization and radiation chemistry of glycolaldehyde and ethylene glycol ices reggie l. Top, gas phase thermochemistry data, condensed phase thermochemistry data, phase change data, reaction thermochemistry data, henrys law data, gas phase ion energetics data, ir spectrum. Regions of the mass spectrum are shown in greater detail in figure 4.
Fourier transform infrared and nearinfrared spectroscopic methods. According to the correlations in3,4, for benzocrown ethers and their. Free download of ftir spectra of basic polymer types. The infrared absorption spectrum of the liquid has been. Ethylene glycol is used to manufacture antifreeze and deicing solutions for cars.