Didodecyldimethylammonium bromide Chemical Properties

Melting point:

157-162 °C(lit.)

Density 

1.0463 (rough estimate)

refractive index 

1.5260 (estimate)

solubility 

ethanol: 0.1 g/mL, clear, colorless

form 

Crystalline Powder

color 

White to off-white

Water Solubility 

Soluble in hot and cold water.

Sensitive 

Hygroscopic

BRN 

3576662

Stability:

Stable. Hygroscopic. Incompatible with strong oxidizing agents, moisture.

CAS DataBase Reference

3282-73-3(CAS DataBase Reference)

EPA Substance Registry System

Didodecyl dimethyl ammonium bromide (3282-73-3)

Safety Information

Hazard Codes 

Xi,Xn

Risk Statements 

36/37/38-22

Safety Statements 

26-36-36/37/39

WGK Germany 

3

F 

3

TSCA 

Yes

HS Code 

29239000

MSDS

• Language:English Provider:Didodecyldimethylammonium bromide
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Didodecyldimethylammonium bromide Usage And Synthesis

Chemical Properties

white powder

Uses

(Di-n-dodecyl)dimethylammonium bromide is used as a phase transfer catalyst. It is also used as floor disinfectant. Further, it acts as surface-active agent.

Uses

Didodecyldimethylammonium bromide (DDAB) is a double-chain cationic surfactant.
Possible applications:
DDAB can be employed as a co-surfactant to synthesize well-defined multilamellar vesicular silica with an adjustable number of layers.
As a surfactant to synthesize gold nanoclusters and nanocubes.
It forms supersaturated reverse micelles and microemulsions that act as organized reaction microenvironments for the synthesis of barium sulfate.
Calcium montmorillonite can be modified by DDAB through direct ion-exchange to synthesize thermally stable organoclay.

Purification Methods

Recrystallise the salt from acetone, acetone/ether mixture, then from ethyl acetate, wash with ether and dry it in a vacuum oven at 60o [Chen et al. J Phys Chem 88 1631 1984, Rupert et al. J Am Chem Soc 107 2628 1985, Halpern et al. J Am Chem Soc 108 3920 1986, Allen et al. J Phys Chem 91 2320 1987]. [Beilstein 4 IV 801.]

Didodecyldimethylammonium bromide(3282-73-3)Related Product Information

• Didecyldimethylammonium bromide
• Benzyldodecyldimethylammonium bromide
• Allyl bromide
• Ethidium bromide
• Ammonium bromide
• Rocuronium bromide
• Tetrabutylammonium bromide
• Sodium bromate
• Didecyl dimethyl ammonium chloride
• Benzyl bromide
• Tetraethylammonium bromide
• Tungsten hexacarbonyl
• Dihexadecyldimethylammonium chloride
• 1,1,1,3,5,5,5-Heptamethyltrisiloxane
• Dihexadecyldimethylammonium bromide
• Dimethyldioctadecylammonium bromide
• Dimethylditetradecylammonium bromide
• Sodium ethoxide