Results 181 to 190 of about 14,235 (228)
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Toxicology, metabolism, and biochemistry of 1,2-propanediol
Toxicology and Applied Pharmacology, 1972Abstract The toxicity of 1,2-propanediol is reviewed, and a table of the LD50 values for the rat, rabbit, mouse, guinea pig, and dog is presented. Metabolic and chronic studies demonstrate that 1,2-propanediol can be used as a substitute for carbohydrate in the diet of rats and young chicks. The glycol is primarily oxidized to lactate or pyruvate.
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2001
[4704-77-2] C3H7BrO2 (MW 154.99) InChI = 1S/C3H7BrO2/c4-1-3(6)2-5/h3,5-6H,1-2H2 InChIKey = SIBFQOUHOCRXDL-UHFFFAOYSA-N (carbonyl protecting group which can be cleaved under neutral conditions2) Physical Data: bp 92–94 °C/1.5 mmHg; d 1.769 g cm−3.
Michael A. Walters, Hélène R. Arcand
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[4704-77-2] C3H7BrO2 (MW 154.99) InChI = 1S/C3H7BrO2/c4-1-3(6)2-5/h3,5-6H,1-2H2 InChIKey = SIBFQOUHOCRXDL-UHFFFAOYSA-N (carbonyl protecting group which can be cleaved under neutral conditions2) Physical Data: bp 92–94 °C/1.5 mmHg; d 1.769 g cm−3.
Michael A. Walters, Hélène R. Arcand
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Optimization of Hydrogenolysis of Glycerol to 1,2-Propanediol
Organic Process Research & Development, 2013Based on statistical experimental design methodology, the single-response optimization of technological parameters of glycerol hydrogenolysis to 1,2-propanediol was performed. The independent factors (technological parameters) considered were the following: hydrogenolysis temperature, glycerol concentration in water, concentration of catalyst, and ...
Agnieszka Wołosiak-Hnat +2 more
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Catalytic dehydration of 1,2-propanediol into propanal
Applied Catalysis A: General, 2009Abstract Vapor-phase catalytic dehydration of 1,2-propanediol was investigated over several catalysts, such as acidic oxides and supported heteropoly acids. These acids catalyze the dehydration of 1,2-propanediol to produce propanal. In particular, silica-supported silicotungstic acid showed the highest catalytic activity in the formation of propanal.
Keitaro Mori +2 more
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Cryobiology, 1982
Abstract Three ternary systems with water and 1,2-propanediol were investigated, where the third component is 1-propanol, ethanol, or glycerol. 1-Propanol and ethanol give hydrates in their aqueous solutions as well as in these ternary systems, while glycerol gives none.
P, Boutron +3 more
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Abstract Three ternary systems with water and 1,2-propanediol were investigated, where the third component is 1-propanol, ethanol, or glycerol. 1-Propanol and ethanol give hydrates in their aqueous solutions as well as in these ternary systems, while glycerol gives none.
P, Boutron +3 more
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The Journal of Chemical Thermodynamics, 1990
Abstract The excess molar volumes VmE of (water + 1,2-propanediol), (methanol + 1,2-propanediol), and (water + methanol + 1,2-propanediol) have been measured at 283.15 K, 293.15 K, and 303.15 K by using a vibrating-tube densimeter. The values of VmE are all negative over the entire range of mole fractions.
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Abstract The excess molar volumes VmE of (water + 1,2-propanediol), (methanol + 1,2-propanediol), and (water + methanol + 1,2-propanediol) have been measured at 283.15 K, 293.15 K, and 303.15 K by using a vibrating-tube densimeter. The values of VmE are all negative over the entire range of mole fractions.
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The Wrappers of the 1,2-Propanediol Utilization Bacterial Microcompartments
2018The propanediol utilization bacterial microcompartments are specialized protein-based organelles in Salmonella that facilitate the catabolism of 1,2-propanediol when available as the sole carbon source. This smart prokaryotic cell organelle compartmentalizes essential enzymes and substrates in a volume of a few attoliters compared to the femtoliter ...
Naimat K, Bari +2 more
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Effects of 1,2-propanediol on the cytoskeletal organization of the mouse oocyte
Human Reproduction, 1992The effects of 1,2-propanediol, a cryoprotectant used for the freezing of embryos, were tested on the organization of microtubules and microfilaments in mouse oocytes arrested in metaphase II. At low doses (less than or equal to 1.0 M), 1,2-propanediol induced disorganization of the meiotic spindle but at 1.5 M and higher, it stabilized the spindle ...
C, Joly +4 more
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Stereospecific Microbial Conversion of Lactic Acid into 1,2-Propanediol
ACS Synthetic Biology, 2014Biocatalytic syntheses are increasingly explored as the alternate platform of chemical production in order to address the sustainable development challenge faced by the current chemical industry. Here, we report the design and implementation of an artificial pathway to convert lactic acid into 1,2-propanediol.
Wei, Niu, Jiantao, Guo
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Hydrogenolysis of 1,2‐Propanediol for the Production of Biopropanols from Glycerol
ChemSusChem, 2010AbstractProduction of propanols from glycerol, which are known as biopropanols, requires catalysts for the hydrogenolysis of 1,2‐propanediol, which has been easily derived from glycerol. It is found that the Rh/SiO2 catalysts modified with ReOx species exhibited high activity and selectivity in the hydrogenolysis of 1,2‐propanediol to propanols with ...
Yasushi, Amada +3 more
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