cloud point surfactant
Therefore, the role of the phenyl ring is also having importance in clouding phenomena. This behavior is characteristic of nonionic surfactants, which are often soluble at low temperatures but "cloud out" at some point as the temperature is raised. These cloud point boosters are classified into two categories: nonionic and ionic. Let's exlpore cloud point, the onset of cloudiness as temperature is raised. Surfactants The CP of OPEO30 is higher than 100 °C due to its approximately 30 oxyethylene units per molecule, which limits its use in cloud point extraction (CPE) procedures at room temperature. The cloud points were the temperature at which the appearance of turbidity was … The cloud point of aqueous surfactant solution was determined by heating 10 ml of such micellar solution in graduated glass tubes. A cloud point extraction (CPE) process using the two nonionic surfactants, Tergitol 15-S-9 and Tergitol 15-S-7, mixtures of secondary ethoxylated alcohols, to extract selected polycyclic aromatic hydrocarbons (PAHs) from aqueous solutions at 25°C was investigated. The exact concentration of the surfactants that yield the aggregates being thermodynamically soluble is the CMC. It is important to carefully review product literature in order to understand the conditions under which cloud point is reported. Alternatively, considered in its broadest aspects, any surfactant which has a cloud point of ≧0° C. and ≦25° C. and could be substituted for Antarox BL-214 and any surfactants with a cloud point of ≦25° C. and ≧60° C. could be substituted for Antarox BL-240, although these Antarox surfactants are the preferred because they offer both quick breaking foam and good … Abstract. Most anionic and nonionic … Cloud Point 8-12 AppellandPorte foundcloudpointsathigh concentrations (>3 M) of sodium chlorate (NaClO 3) salt in aqueous solutions of either CTAB or cetyl pyridinium bromide (CPyBr). Protein Liquid Chromatography. New focus of the cloud point/Krafft point of nonionic/cationic surfactants as thermochromic materials for smart windows ... (EO)6 above the cloud point (Tc) and the crystallization of HPB b Jump to main content . What is Cloud-point Extraction (CPE)?
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cloud point surfactant
