Detergent Surfactant

Common surfactant - Anionic surfactant

Anionic surfactants, chemical terms: An - ionic surfactant. Is one kind of  surfactant. After dissociated in the water, generating hydrophobic anion. As in water molecules of fatty alcohols sodium, namely surrounded by disintegrate for ROSO2 -o and Na+ two parts, a surface activity. Anionic surfactants is divided into carboxylate, acid ester salt, sulfonates and phosphate salt into four categories, and has good decontamination, foaming, scattering, emulsion, wetting characteristics. Widely used for detergent, foaming agent, wetting agent, emulsifier and dispersant. Yield of surfactant first. Not with cationic surfactants used together, in aqueous solution generation

Main characteristics

(1) soap is one of the most common fatty acid salt anionic surfactant soap main performance characteristic is its solution, the pH in 9.0 ~ 9.8, show weakly alkaline, it has good wetting, foaming, decontamination effect such as widely used as detergent. Soap shortcoming is hard water resistant performance is poor, use soap in hard water washing force is poor, not only the calcium soap is generated by acid water suspension and dirt in clothings hard to remove adhesion. The soap and hard water of calcium, magnesium plasma reaction products.it black dirty, not only to add, add the cost of Qu soap, and binding in clothing resulted from the dots will make clothings stiff. Contains black dirty cloth in printing and dyeing process will build cause dyeing unevenness. Soap in pH below? The acid medium will transform into insoluble in water, can make the free fatty acid soap becomes muddy and adhesion in laundry will not be removed. Therefore soap only in neutral and alkaline medium in use. Usually use soap often cooperate stir-in soda ash to keep soap pH in 10 or so, its purpose to prevent soap hydrolysis and improve cleaning effect. Note in removing acid dirt or in acid mordant in liquid cannot use soap. Palmitic acid salt and stearate water-soluble poor, to give full play to their washing ability often require at higher temperature conditions, and Yun use containing unsaturated double bond oleic acid salt better suited to a low temperature of washing and occasion. Above Ai due to high carbon fatty acid salt in water solubility is too low, but oil-soluble good, so is suitable for dry cleaning solvent blending of surfactants (degeneration soap), fatty acid organic amine salt and two diethanolamine, mostly performance for salt triethanolamine oil-soluble, used as emulsifier, wetting Qu agent, such as applying triethanolamine soap often in organic solvents as emulsifier. (2) pro-oil base through the cow between keys with carboxyl connected carboxylate (remy bond A) fatty acid salt besides common backlight53 soap outside, still have this form of carboxylate, if use peptide mixture and fat carbonyl chlorides happen condensation reaction made of N - silane acyl peptides. Including oil carbonyl chlorides and defatted scurfy etc waste protein hydrolytic condensation products made of surfactant, commodity called remy bond A (A), domestic goods Lamepon called 613 detergent, chemical name for N - oil acyl much shrinkage amino acid sodium (or N - oil acyl polypeptide).

All products with surfactant