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Dissolution Rate of Sodium Fatty Alcohol Sulfate FAS – Surfactants

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Published/Copyright: March 30, 2013
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Tenside Surfactants Detergents
From the journal Tenside Surfactants Detergents Volume 44 Issue 5

Abstract

We represent an applicable problem that arises when long chain surfactant fatty alcohol sulfate FAS is used in washing process. Octadecyl fatty alcohol sulfate C18-FAS is known for its strong washing performance, however it has the disadvantages of high Krafft point and its long dissolution rate. We demonstrate the factors that affect dissolution rates of FAS-surfactants, and how one can vary these factors in order to achieve particular dissolution rate. In this study, we have used a reproducible method for determining the rate of dissolution of anionic surfactants tablet and the effect of, temperature, hardness of FAS-tablets, stirring rate, FAS chain length, mixing with other surfactants and additives on the rate of dissolution of FAS have been studied.

Kurzfassung

Wir stellen ein Anwendungsproblem dar, dass entsteht, wenn in Waschprozessen langkettige Tenside aus Fettalkohol-Sulfaten (FAS) eingesetzt werden. Octadecyl-Fettalkohol-Sulfat C18-FAS ist bekannt für seine starke Waschkraft, hat aber nachteilig einen hohen Krafftpunkt und lange Auflösungszeiten. Wir zeigen die Faktoren auf, die das Auflösungsvermögen von FAS-Tensiden beeinflussen und wie man diese Faktoren variieren kann, um ein bestimmtes Auflösungsvermögen zu erreichen. In dieser Arbeit haben wir ein reproduzierbare Methode eingesetzt, um die Auflösung von anionischen Tensid-Tabs zu bestimmen, wobei die Einflüsse von Temperatur, Härte der FAS-Tabs, Rührgeschwindigkeit, FAS-Kettenlänge, Mischung mit anderen Tensiden und Additiven untersucht wurden.

Key words:: Rate of dissolution; fatty alcohol sulfates; gel like layer; surfactant
Stichwörter:: Auflösungsvermögen; Fettalkohol-Sulfate; gelartige Schicht; Tenside
∗ Dr. Rami Abdel-Rahem, King Faisal University, Al-Ahsa Teachers College, Department of Science, Section of Chemistry, Qatar street, P.O. Box 2313, Al Hafouf 31982, Kingdom of Saudi Arabia, P.O. Box 2313. E-mail:

Dr. Rami Abdel-Rahem was born in 1974 (in As Sarih-Jordan), studied applied chemistry at Jordan University of Science and Technology. He obtained his PhD in 2003 from Bayreuth University (Germany) under supervision of Prof. Dr. Heinz Hoffmann. From 2003 until 2005, he worked as a lecturer of physical chemistry at the university of Al-Margeb (Libya). Since 2005, he has been an assistant professor of physical chemistry at Al Ahsa Teachers College (Kingdom of Saudi Arabia).

Dr. Jibril Al-Hawarin was born in 1965 (in Ma'an-Jordan), studied chemistry at Moscow State University of Fine Chemical Technology. He obtained his PhD in 1994 from Moscow State University (Russia) under supervision of Prof. Dr. I. A. Gritskova. From 1995 until 2003, he worked as a lecturer of chemistry at Al-Balqa Applied University (Jordan). Since 2003, he has been an assistant professor of organic chemistry at Al Ahsa Teachers College (Kingdom of Saudi Arabia).

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Received: 2007-05-06
Published Online: 2013-03-30
Published in Print: 2007-10-01

© 2007, Carl Hanser Publisher, Munich

Articles in the same Issue

  1. Contents/Inhalt
  2. Contents
  3. Abstracts
  4. Abstracts
  5. Application
  6. Dissolution Rate of Sodium Fatty Alcohol Sulfate FAS – Surfactants
  7. Visible Light Photo-catalysts Based on Titanium Dioxide and their Potential Applications – an Introduction
  8. The Influence of Different Ether Carboxylic Acids on Polyester Fibre Friction
  9. Hygiene Quality Management
  10. Risk Analysis and Biocontamination Control – Hygiene Measures in Commercial Laundries
  11. Novel Surfactants
  12. Synthesis, Characterization and Thermodynamic Parameters of Anionic Gemini Surfactants with Different Spacer Groups
  13. Synthesis
  14. Study on the Synthesis and Surface Activities of Disodium of Mono-Alkyl Polyoxyethylene Ether Citrate
https://doi.org/10.3139/113.100345
Keywords for this article
Rate of dissolution; fatty alcohol sulfates; gel like layer; surfactant

Articles in the same Issue

  1. Contents/Inhalt
  2. Contents
  3. Abstracts
  4. Abstracts
  5. Application
  6. Dissolution Rate of Sodium Fatty Alcohol Sulfate FAS – Surfactants
  7. Visible Light Photo-catalysts Based on Titanium Dioxide and their Potential Applications – an Introduction
  8. The Influence of Different Ether Carboxylic Acids on Polyester Fibre Friction
  9. Hygiene Quality Management
  10. Risk Analysis and Biocontamination Control – Hygiene Measures in Commercial Laundries
  11. Novel Surfactants
  12. Synthesis, Characterization and Thermodynamic Parameters of Anionic Gemini Surfactants with Different Spacer Groups
  13. Synthesis
  14. Study on the Synthesis and Surface Activities of Disodium of Mono-Alkyl Polyoxyethylene Ether Citrate
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