Nanjing Chemical Material Corp.

Two Different Types of Anionic Surfactants Two Different Types of Anionic Surfactants

Anionic surfactant is a kind of product with the longest history, the largest output and the most varieties among surfactants. According to the structure of hydrophilic groups, anionic surfactants can be divided into sulfonates and sulfates, which are the main categories of anionic surfactants. 

The anionic surfactants definition is a must-known concept for many people working in the chemical industry. The various functions of surfactants are mainly manifested in changing the properties of the liquid surface, liquid-liquid interface and liquid-solid interface, of which the surface (interface) of the liquid is the most important.

Sulfate-type anionic surfactants mainly include fatty alcohol sulfate (also known as primary alkyl sulfate) and secondary alkyl sulfate:

1.  Fatty alcohol sulfate (ester) salt (FAS or AS). The general formula of fatty alcohol sulfate is: ROS0-3M+, R is alkyl, M+ is sodium, potassium, ammonium, ethanolamine and other cations, also known as primary alkyl sulfuric acid Salt, English abbreviated as FAS or AS.

It is the earliest anionic surfactant after soap. It is prepared by esterification of c12-c14 fatty alcohols generated by Hydrogenolysis of coconut oil with sulfuric acid and neutralization. It has suitable solubility, foaming and decontamination properties. It is widely used in dentifrice, shampoo, bubble bath and cosmetics. It is also an important component in the formulation of light scale, heavy scale detergents, carpet cleaners and hard surface cleaning agents, such as sodium lauryl sulfate (C12H25OSO3Na).

2. Secondary alkyl sulfate (Teep01). It is a secondary alkyl sulfate produced by the reaction of olefin and sulfuric acid. It is a product obtained after neutralization. The trade name is Teep01. Teep01, similar to FAS, is also a kind of surfactant agent with good performance, but its solubility and wettability are better due to structural differences. It is usually made into liquid or slurry detergent, since the powder product is easy to absorb moisture and agglomerate.

Related News
  • 2018 Asia Petrochemical Industry Conference

    2018 Asia Petrochemical Industry Conference

    January 29, 2019August 20-21, 2018 Kuala Lumpur Convention Center MalaysiaAPIC 2018 (Asia Petrochemical Industry Conference, APIC) is making a return to the vibrant city of Kuala Lumpur, Malaysia from 20 - 21 August...view
  • Glycolic Acid for Household Cleaning

    Glycolic Acid for Household Cleaning

    October 9, 2021Glycollic acid can enhance the of effects of cleaning products and improve the efficacy of other components of washing liquid. Glycolic acid can provide relatively low corrosion rates and extremely lo...view
  • The Effect of Glycolic Acid in Beauty and Skin Care

    The Effect of Glycolic Acid in Beauty and Skin Care

    May 17, 2022Glycolic acid is an organic substance with the chemical formula C2H4O3, a colorless and deliquescent crystal. Soluble in water, soluble in methanol, ethanol, ethyl acetate and other organic solvents, ...view
  • Preparation of Ethyl Iodide

    Preparation of Ethyl Iodide

    April 29, 2019Ethyl iodide is usually reacted with ethanol, iodine and red phosphorus, but the reaction is slow, and it needs to be heated in a reflux device for several hours.view
  • Tetraethyl Ammonium Hydroxide Solution

    Tetraethyl Ammonium Hydroxide Solution

    October 13, 2021Tetraethyl ammonium hydroxide is quaternary ammonium base, a strong organic base, similar in molecular structure to ammonium hydroxide and more alkaline than sodium hydroxide and potassium hydroxide.M...view
  • Use of Polyether Polyol

    Use of Polyether Polyol

    April 21, 2020Polyether polyol is abbreviated as polyether. It is an oligomer whose main chain contains ether bond (—R—O—R—) and the terminal group or side group contains more than 2 hydroxyl groups (—OH). It ...view
  • TEL:+86-25-52337978
  • EMAIL:
  • ADDRESS:12/F, Block B, Technology and Innovation Building, Nanjing University of Technology, No.5 New Model Road, Nanjing 210009, China