Results 41 to 50 of about 2,743 (170)

Evaluation of chemical constituents of E-cigarette liquid refills marketed through online in India using NMR analysis

open access: yesTobacco Induced Diseases, 2018
Background Electronic cigarette (e-cigarette) is an emerging class of electronic nicotine-delivery system claimed by the industries as a quitting aid.
C V Divyambika, E Vidhubala, G Vani
doaj   +1 more source

Glycols – Method for the determination of diethylene glycol, ethylene glycol and propylene glycol in workplace air using gas chromatography : Air Monitoring Method

open access: yes, 2018
This analytical method is a validated measurement procedure for the determination and limit value monitoring of diethylene glycol, ethylene glycol and propylene glycol in workplace air.
Breuer, Dietmar   +8 more
core   +1 more source

Methods for synthesizing diethyl carbonate from ethanol and supercritical carbon dioxide by one-pot or two-step reactions in the presence of potassium carbonate [PDF]

open access: yes, 2009
Carbon dioxide sequestration was studied by synthesizing diethyl carbonate (DEC) from ethanol and CO2 under supercritical conditions in the presence of potassium carbonate as a base. The co-reagent was ethyl iodide or a concentrated strong acid.
Thiebaud-Roux, Sophie   +3 more
core   +1 more source

Mechanism analysis and chemical equilibrium modelling for liquid phase glycerol hydrogenolysis

open access: yesChemical Thermodynamics and Thermal Analysis
In this work, the chemical equilibrium of the glycerol (GLY) hydrogenolysis in the liquid phase was studied from the mechanism of the CO and CC bond cleavage and hydrogenation reactions using the commercial simulator UniSim Design ® in the range T ...
Martín N. Gatti   +3 more
doaj   +1 more source

THE ACTIVATION OF PURIFIED HUMAN PLASMINOGEN IN SOLUTIONS OF ETHYLENE GLYCOLS

open access: yes, 1963
Ethylene glycols have been found to allow activation of purified preparations of human plasminogen. The activity of the enzyme formed, plasmin, was measured using TAMe (p-toluene-sulphonyl-L-arginine methyl ester) as a substrate.
Phyllis S. Roberts
core   +1 more source

NEG and NIOSH basis for an occupational health standard : propylene glycol ethers and their acetates [PDF]

open access: yes
"The propylene glycol ethers and their acetates were reviewed as background for discussion of occupational exposure limits. The most commonly used propylene glycols in industry were 1-methoxy-2- propanol (107982), 2-methoxy-1-propanol (1320678), 1 ...

core  

Microscopy and FTIR investigations of the thermal gelation of methylcellulose in glycols

open access: yes, 2017
Methylcellulose is a well-known polymer due to its reverse thermal gel formation property in aqueous solutions. Support materials play an important role in the additive manufacturing of three dimensional parts using processes that utilise inkjet ...
Fahad, Muhammad   +5 more
core   +1 more source

Selective hydrogenolysis of xylitol to ethylene glycol and propylene glycol over copper catalysts

open access: yes, 2014
Cu-SiO2 catalysts were prepared by homogeneous deposition-precipitation with a wide range of Cu contents (8.8-100 wt%) and Cu particle sizes (2.1-111.1 nm).
Huang, Zhiwei   +5 more
core   +1 more source

Heterogeneous photocatalytic degradation of ethylene glycol and propylene glycol

open access: yes, 2008
The photocatalytic decomposition of ethylene glycol and propylene glycol was investigated by using UV-illuminated TiO_2 and metal-loaded TiO_2 catalysts.
Hoffmann, Michael R., Kim, Kyung Nam
core  

Selective hydrogenolysis of biomass-derived xylitol to ethylene glycol and propylene glycol on Ni/C and basic oxide-promoted Ni/C catalysts

open access: yes, 2014
The selective hydrogenolysis of xylitol to ethylene glycol and propylene glycol was examined on Ni/C catalysts in the presence of solid bases, e.g. Ca(OH)(2) and CeO2, physically mixed with or co-supported with Ni on C.
Liu, Haichao, Sun, Jiying
core   +1 more source

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