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"Chemical Enhanced Oil Recovery by alkali, surfactant and/or polymer flooding could be o good option to produce remaining oil from brown fields. One parameter that affects performance and economics of a CEOR process is h...

Materias / palabras clave: Surface active agents; Distribución EON; Compuesto orgánico

Materias / palabras clave: Chemical engineering; Cuba; Chemistry; Química; Quimica

Materias / palabras clave: Surface active agents; Ingeniería química

Materias / palabras clave: Ingeniería; Espectrofotometría; Engineering; Spectrophotometry

The application of 35% hydrogen peroxide in intracoronal bleaching generates free radicals that shorten resin tags and weaken the bond strength of composite resin restorations. Although 35% sodium ascorbate can neutraliz...

Free radical residue due to intracoronal bleaching using 35% hydrogen peroxide (HP) can be removed with 35% sodium ascorbate (SA) combined with surfactants. This study aimed to determine the effect of surfactant concentr...

Gemini surfactants are amphiphilic molecules formed by two polar heads and two hydrophobic tails joined by a spacer between the polar groups. Their molecular structure gives them particular physico-chemical properties in...

The impact of rhamnolipids (RL) biosurfactants presence on the phase-separation equilibrium, micellar properties and partitioning behavior of systems containing the aliphatic non-ionic surfactant Tergitol 15-S-7 (Tg7) wa...

Porous ammonium nitrate is frequently used for specific applications due to its porous structure when compared with conventional ammonium nitrate, however, its higher transportation costs increase overall operational exp...

Poly(allylamine)–dodecylsulfate complex (PA–DS) is able to form a stable and layered structure onto graphite electrodes and can efficiently retain negatively charged ions like ferrocyanide. In this con- text, Prussia...

Abstract In the aquaculture industry, biocides are routinely used to treat parasitosis in fish, and researchers are continually developing sustainable alternatives that can replace these harsh chemicals. In this context,...

Fil: Sarubbi, Carlos Alberto Santiago. Universidad de Buenos Aires. Facultad de Agronomía. Argentina. El tamaño de la gota asperjada influye en la posibilidad de encuentro entre el caldo, que contiene el producto fitos...

Bilayer vesicles, such as liposomes and niosomes, are widely known as efficient delivery systems for drugs. Spherical vesicles consisting of amphipatic non-ionic surfactants named niosomes are arranged in one or more con...

Trabajo Final Producción de Petróleo y Gas (especialización) - Instituto Tecnológico de Buenos Aires, Buenos Aires, 2019

La estabilidad funcional de las enzimas es un factor determinante en el empleo de estos biocatalizadores en numerosas áreas del desarrollo socio-económico humano. Por tal motivo, el establecimiento de nuevos métodos o...

The influence of the nonionic surfactant lauryl alcohol ethoxylate with 12 moles ethylene oxide (LAE-12OE) was evaluated on the Stratum corneum model biomembrane (SCMM) of shed snake skin (Bothrops jararaca and Spilotes ...

Se evaluó la reología y el tamaño de partícula de una preparación de surfactante pulmonar conocida como Surfacen® a una concentración de 25 mg/mL a las temperaturas de 23 y 37 °C y se estudió el efecto de la lio...