LAURAMIDOPROPYL BETAINE

PRODUCT IDENTIFICATION
CAS NO.

4292-10-8

LAURAMIDOPROPYL BETAINE
EINECS NO.

224-292-6
FORMULA RCONH(CH2)3N+(CH3)2CH2COO-
MOL WT.  

H.S. CODE

2923.90
SMILES

 

CLASSIFICATION

nonionic surfactant

TOXICITY

 Oral rat LD50: 5000mg/kg
SYNONYMS

Laurylamidopropyl Betaine;

N-(carboxymethyl)-N,N-dimethyl-3-[(1-oxododecyl)amino]-1-Propanaminium, hydroxide, inner salt; (3-(Lauroylamino)propyl)dimethylaminoacetic acid;  3-Lauroylamidopropyl betaine; (3-Laurylaminopropyl)dimethylaminoacetic acid hydroxide inner salt; Lauroylamide propylbetaine; Dimethyl(lauramidopropyl)betaine; Lauroylaminopropyldimethyl aminoacetate; N-(Dodecylamidopropyl)-N,N-dimethylammonium betaine;   N-Laurylamidopropyl-N,N-dimethylbetaine; ; Other CAS RN: 5437-10-5; 65277-51-2;

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE Clear to pale yellow liquid

MELTING POINT

 -3 C
BOILING POINT 100 C
SPECIFIC GRAVITY 1.043

SOLUBILITY IN WATER

 Soluble
pH

8 (10% Sol.)
VISCOSITY

3,000 - 4,000 cps (at 25 C)
AUTOIGNITION

 

REFRACTIVE INDEX

 
NFPA RATINGS Health: 1; Flammability: 1 ; Reactivity: 0
FLASH POINT

94 C
STABILITY Stable under ordinary conditions

APPLICATIONS

Amphoteric surfactants have dual functional groups (both acidic and basic groups) in the same molecule. They are polar solvents that have a high solubility in water but a poor solubility in most organic solvents. They are electrically neutral but carries positive and negative charges on different atoms in an aqueous solution. Depending on the composition and conditions of pH value, the substances can have anionic or cationic properties. In the presence of acids, they will accept the hydrogen ions but they will donate hydrogen ions to the solution in the presence of bases, which balances the pH. Such actions make buffer solutions which resist change to the pH. In the detergency ability amphoteric surfactants which change their charge according to the pH of the solution affects properties of foaming, wetting and detergentcy through a surface action that exerts both hydrophilic and hydrophobic properties. In biochemistry amphoteric surfactant is used as a detergent for purifying, cleansing and antimicrobial effects. Alkylbetains and aminoxides are amphoteric surfactants.

Members of amphoteric surfactants

  • 2-Alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine
  • Alkyldimethyl amine oxide
  • Cocoamine oxide
  • Cocoamphocarboxyglycinate
  • Cocoamphopolycarboxyglycinate
  • Cocodimethylamine oxide
  • Cocoiminoglycinate
  • Cocoiminopropionate
  • Cocoylamidepropyldimethyl grycine
  • Lauryl betaine
  • Lauryldimethyl amine oxide
  • Laurylhydroxy sulfobetain
  • Laurylamide propyldimethyl grycine
  • Lauryldimethyl betaine
  • Octyliminodipropionate
  • Oleylamphopolycarboxyglycinate
  • Stearyl betaine
  • Tallowamine oxide
  • Tallowamphopolycarboxyglycinate
  • Tetradecyldimethyl amine oxide
SALES SPECIFICATION

APPEARANCE

 Clear to pale yellow liquid

ACTIVE MATTER

30.0 ± 1.0%

TOTAL SOLIDS

36.0 - 37.0%

SODIUM CHLORIDE

ca 5.0%

pH

ca 8 (10% Sol.)

COLOR (GARDNER)

1 max
TRANSPORTATION
PACKING 200kgs in Drum
HAZARD CLASS  
UN NO.  
OTHER INFORMATION
This compound is a mild amphoteric surfactant derived from coco-methyl esters. It favors thickening effect where used with anionic surfactants
'Amphoteric' is the descrition of the compounds having both acidic (e.g., carboxylate group) and basic (e.g., amine group) functional groups in their molecules. It reacts as a base to form the R3N+CH2COOH ion in acidic solutions; it acts as an acid to form the R2NCH2COO- ion in basic solutions. In neutral solutions, the ion R3N+CH2COO- can exist (zwitterion).