629-25-4Relevant articles and documents
Accelerated saponification of methyl dodecanoate with aqueous sodium hydroxide solution in the presence of alcohols in a silicone rubber tube as a flow-type reactor
Kamiouji, Atsushi,Hashimoto, Keiji,Kominami, Hiroshi,Ito, Seishiro
, p. 509 - 513 (2009)
Saponification of methyl dodecanoate with an aqueous sodium hydroxide solution in the absence and presence of alcohols was studied using a tubular reactor made of silicone tube to elucidate effects of alcohol addition on the saponification. The reaction r
Continuous preparation method of metal fatty acid salt
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Paragraph 0060; 0061; 0062; 0063; 0108; 0109; 0110; 0111, (2019/04/04)
The invention relates to a continuous preparation method of metal fatty acid salt. The continuous preparation method of the metal fatty acid salt comprises the step of continuously enabling fatty acidand metal hydroxides to react in a solvent and prepare the metal fatty acid salt in a microchannel reactor or pipeline reactor. The preparation method disclosed by the invention can control the particle diameter of a product material to be within 70nm and 1000nm, and the particle diameter of the product material can be adjusted as needed; the metal fatty acid salt is simple in preparation method,short in technological process, few in three wastes (waste water, waste residues and waste gas), beneficial to environmental protection and suitable for industrial production; the reactor used in theinvention has short reaction time, high safety, high efficiency and large productivity, and can realize continuous production, furthermore, the space utilization rate of workshops is high, and mass production can be realized; by adopting the preparation method disclosed by the invention, the solvent can be recycled to lower the production cost; and the preparation method has high conversion rateof raw materials, stable quality and high purity.
GLYCOPYRRONIUM FATTY ACID SALTS AND METHODS OF MAKING SAME
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Page/Page column 22, (2017/01/02)
Novel glycopyrronium fatty acid salts have been developed. Bi-phasic reaction conditions enable the desired counterion exchange reactions between glycopyrronium bromide and fatty acid salts of alkali metals and alkaline earth metals in methods to form glycopyrronium fatty acid salts. In preferred embodiments, an excess of the free fatty acid in the reaction mixture stabilizes the glycopyrronium fatty acid salt and reduces the formation of the impurity, Acid A. In some preferred embodiments, between 0.2 and 1.2 molar equivalent of excess free fatty acid is added to the reaction mixture. In another embodiment, approximately 1.2 molar equivalent of excess free fatty acid is added to the reaction mixture.
PH-sensitive self-propelled motion of oil droplets in the presence of cationic surfactants containing hydrolyzable ester linkages
Banno, Taisuke,Kuroha, Rie,Toyota, Taro
experimental part, p. 1190 - 1195 (2012/06/05)
Self-propelled oil droplets in a nonequilibrium system have drawn much attention as both a primitive type of inanimate chemical machinery and a dynamic model of the origin of life. Here, to create the pH-sensitive self-propelled motion of oil droplets, we synthesized cationic surfactants containing hydrolyzable ester linkages. We found that n-heptyloxybenzaldehyde oil droplets were self-propelled in the presence of ester-containing cationic surfactant. In basic solution prepared with sodium hydroxide, oil droplets moved as molecular aggregates formed on their surface. Moreover, the self-propelled motion in the presence of the hydrolyzable cationic surfactant lasted longer than that in the presence of nonhydrolyzable cationic surfactant. This is probably due to the production of a fatty acid by the hydrolysis of the ester-containing cationic surfactant and the subsequent neutralization of the fatty acid with sodium hydroxide. A complex surfactant was formed in the aqueous solution because of the cation and anion combination. Because such complex formation can induce both a decrease in the interfacial tension of the oil droplet and self-assembly with n-heptyloxybenzaldehyde and lauric acid in the aqueous dispersion, the prolonged movement of the oil droplet may be explained by the increase in heterogeneity of the interfacial tension of the oil droplet triggered by the hydrolysis of the ester-containing surfactant.