Temperature-responsive extraction of violacein using a tuneable anionic surfactant-based system

Hydrogel was formed in a mixture of the zwitterionic surfactant HDPS (with a saturated C16tail) and anionic surfactant SDS, and could easily be switched between gel and sol by dual stimulus–response processes employing temperature and salt.

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Recovery of phorbol esters from pressed jatropha seeds by surfactant extraction and cloud-point separation

Industrial Crops and Products ◽

10.1016/j.indcrop.2016.11.009 ◽

2017 ◽

Vol 95 ◽

pp. 549-557 ◽

Cited By ~ 3

Author(s):

Naphatsarnan Phasukarratchai ◽

Seelawut Damrongsiri ◽

Chantra Tongcumpou

Keyword(s):

Cloud Point ◽

Phorbol Esters ◽

Point Separation ◽

Jatropha Seeds

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Thermodynamic Parameters of Anionic Surfactant−Additive Systems at the Cloud Point

Journal of Chemical & Engineering Data ◽

10.1021/je100502b ◽

2010 ◽

Vol 55 (11) ◽

pp. 5055-5058 ◽

Cited By ~ 5

Author(s):

Tanweer Ahmad ◽

Arniza Ghazali ◽

Othman Sulaiman ◽

Rokiah Hashim ◽

Ziya A. Khan ◽

...

Keyword(s):

Thermodynamic Parameters ◽

Cloud Point ◽

Anionic Surfactant ◽

Surfactant Additive

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Recovery of various phenols and phenylamines by micellar enhanced ultrafiltration and cloud point separation

Green Chemistry ◽

10.1039/b312343j ◽

2004 ◽

Vol 6 (3) ◽

pp. 176 ◽

Cited By ~ 32

Author(s):

Katarzyna Materna ◽

Elzbieta Goralska ◽

Anna Sobczynska ◽

Jan Szymanowski

Keyword(s):

Cloud Point ◽

Point Separation ◽

Micellar Enhanced Ultrafiltration

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Lampiran 4C Paper Reduction of Anionic Surfactant in Detergent from Domestic Wastewater Using Pumice and Sand Media in Constructed Wetland System

10.31219/osf.io/5vnep ◽

2021 ◽

Author(s):

Philiphi de Rozari

Keyword(s):

Anionic Surfactant ◽

Constructed Wetland ◽

Domestic Wastewater ◽

System P ◽

Wetland System ◽

Surfactant Removal

The use of pumice and sand as a media in Constructed wetland (CW) system to reduce anionic surfactant has been carried out. This research aimed to investigation the efficiency of pumice and sand in CW system with and without plant (cymbopogon citrates) for CW anionic surfactant removal. There were six variation of CW treatments based on percentage pumice amended in the sand media. The anionic surfactant were analysed using UV-VIS spectrophotometry with metilen blue methods. Results of the analysis on oneway anova showed that the efficiency removal of anionic surfactant in inflow and outflow is significant different, on the variation of media of pumice 10% and sand 90% (CW B) reduced anionic surfactant levels efficiently from an average of 0,481ppm to 0,188 ppm with a decrease in percentage value of 60,91%.

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Cloud Point Extraction Of Cationic Surfactants And Their Ionic Associates With Sodium Dodecyl Sulfate

METHODS AND OBJECTS OF CHEMICAL ANALYSIS ◽

10.17721/moca.2020.111-116 ◽

2020 ◽

Vol 15 (3) ◽

pp. 111-116

Author(s):

S.O. Lelyushok ◽

V.O. Doroschuk ◽

S. A. Kulichenko

Keyword(s):

Cloud Point ◽

Cationic Surfactant ◽

Anionic Surfactant ◽

Cationic Surfactants ◽

Cloud Point Extraction ◽

Sodium Dodecyl ◽

Ionic Surfactant ◽

Rich Phase ◽

Ionic Associates ◽

Extraction Degree

The distribution of individual cationic surfactants and their ionic associates with the anionic surfactant in the cloud point extraction systems, based on non-ionic surfactant OP-7 was investigated. Determined that the dependence of the extraction degree of halides alkylpyridiniums on carboxylic change length in optimal conditions for extraction is characterized by the existence of maximum for cationic surfactant where n = 12. Decrease as well as increase in carboxylic change length of cation of alkylpyridiniums diminishes the effectiveness of their extraction into the surfactant-rich phase. The peculiarities of inter phase distribution of ionic associates cationic surfactant – anionic surfactant in the micellar extraction systems are investigated. It was shown, that with the increase in carboxylic change length of cationic surfactant the dependence of extraction degree of associates with anionic surfactant is characterized by the existence of the maximum. Most effective into the surfactant-rich phase extracted of ionic associates of three- and tetradecylpyridinium. Decreasing and increasing of hydrophobicity of alkylpyridiniums diminishes the effectiveness of extraction of associates. The established effects are explained by the hydrophobic correspondence between the substrate and the surfactant-rich phase of non-ionic surfactant.

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Chemical-responsive control of lower critical solution temperature behavior by pillar[10]arene-based host–guest interactions

Chemical Communications ◽

10.1039/c4cc06927g ◽

2014 ◽

Vol 50 (89) ◽

pp. 13754-13756 ◽

Cited By ~ 25

Author(s):

Xiaodong Chi ◽

Min Xue

Keyword(s):

Ethylene Oxide ◽

Cloud Point ◽

Lower Critical Solution Temperature ◽

Water Soluble ◽

Temperature Behavior ◽

Solution Temperature ◽

Critical Solution Temperature ◽

System P ◽

Guest System

A new water-soluble thermoresponsive pillar[10]arene with tri(ethylene oxide) groups was synthesized and its cloud point could be reversibly controlled based on a chemical-responsive host–guest system.

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