نتایج جستجو برای: glycol ethers

تعداد نتایج: 29872  

2017
Seyed Hossein Jamali Mahinder Ramdin Tim M Becker Shwet Kumar Rinwa Wim Buijs Thijs J H Vlugt

Crown-ethers have recently been used to assemble porous liquids (PLs), which are liquids with permanent porosity formed by mixing bulky solvent molecules (e.g., 15-crown-5 ether) with solvent-inaccessible organic cages. PLs and crown-ethers belong to a novel class of materials, which can potentially be used for gas separation and storage, but their performance for this purpose needs to be asses...

1999
Gunnar Johanson Staffan Marklund Ewa Wigaeus Hjelm Johan Högberg Johan Montelius

The labour market, occupational safety and health, and work organisation are our main fields of activity. The creation and use of knowledge through learning, information and documentation are important to the Institute, as is international cooperation. The Institute is collaborating with interested parties in various development projects. The areas in which the Institute is active include: • la...

Journal: :Environmental Health Perspectives 1984
A W Smallwood K E DeBord L K Lowry

Glycol ethers are known to produce embryotoxic and teratogenic effects in a variety of animal species. In addition, testicular edema and tubular atrophy have been reported. The health effects of this class of compounds are not known in humans, despite the fact that these solvents are widely used in industry. In order to evaluate potential effects in humans, it is first necessary to estimate exp...

Journal: :Applied and environmental microbiology 2005
Kunichika Nakamiya Syunji Hashimoto Hiroyasu Ito John S Edmonds Masatoshi Morita

By using 1,4-dioxane as the sole source of carbon, a 1,4-dioxane-degrading microorganism was isolated from soil. The fungus, termed strain A, was able to utilize 1,4-dioxane and many kinds of cyclic ethers as the sole source of carbon and was identified as Cordyceps sinensis from its 18S rRNA gene sequence. Ethylene glycol was identified as a degradation product of 1,4-dioxane by the use of deu...

Journal: :Petroleum Chemistry 2023

Abstract The study investigates tert- butoxy alkanols (otherwise defined as polyol butyl ethers) that have vicinal and hydroxy groups in their molecules from the perspective of usability oxygenated additives for motor gasoline. A series propylene glycol mono- ether (PTBE) glycerol di- (di-GTBE) samples were prepared: PTBE by direct acid-catalytic alkylation diols with butanol, di-GTBE epichloro...

Journal: :Journal of experimental botany 2004
Qing Ye Boguslaw Wiera Ernst Steudle

Isolated internodes of Chara corallina have been used to study the gating of aquaporins (water channels) in the presence of high concentrations of osmotic solutes of different size (molecular weight). Osmolytes were acetone and three glycol ethers: ethylene glycol monomethyl ether (EGMME), diethylene glycol monomethyl ether (DEGMME), and triethylene glycol monoethyl ether (TEGMEE). The 'osmotic...

Journal: :Occupational and environmental medicine 2005
S Cordier L Multigner

T he simultaneously hydrophilic and lipophilic properties of glycol ethers account for their use as solvents in a wide range of industrial and domestic products, including paints, varnishes, cleaning agents, and cosmetics. These dozens of compounds are grouped into two main classes: ethylene glycol ethers (EGEs) and propylene glycol ethers (PGEs). Because animal experiments show several EGEs to...

2005
M. BERGER C. V. HUBBARD B. J. LUDWIG

After it had been shown that the phenyl ether of ethylene glycol possessed antibacterial properties against Pseudomonas aerunosa (Berry, 1944) the antimicrobial and pharmacological activities of a number of related compounds were evaluated. Two of the compounds investigated in this connection have found clinical usefulness. These are mephenesin,3-o-toloxy-1, 2propanediol, widely used as a muscl...

2013
Ronan Garlantézec Charline Warembourg Christine Monfort Laurence Labat Juha Pulkkinen Nathalie Bonvallot Luc Multigner Cécile Chevrier Sylvaine Cordier

BACKGROUND Glycol ethers are present in a wide range of occupational and domestic products. Animal studies have suggested that some of them may affect ovarian function. OBJECTIVE We examined the relation between women's exposure to glycol ethers and time to pregnancy. METHODS We used chromatography coupled to mass spectrometry to measure eight glycol ether metabolites in urine samples from ...

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