| Identification | More | [Name]
Didodecyldimethylammonium bromide | [CAS]
3282-73-3 | [Synonyms]
DIDODECYLDIMETHYLAMMONIUM BROMIDE
DILAURYLDIMETHYLAMMONIUM BROMIDE
DIMETHYLDIDODECYLAMMONIUM BROMIDE
DI-N-DODECYLDIMETHYLAMMONIUM BROMIDE
n-dodecyl-n,n-dimethyl-1-dodecanaminiubromide
1-Dodecanaminium,N-dodecyl-N,N-dimethyl-,bromide
Didodecyl-dimethylazanium bromide
Didodecyldimethylammonium bromide 99% 25g
Dimethylbis(dodecyl)aminium·bromide
Dimethylbisdodecylaminium·bromide
N,N-Dimethyl-N-dodecyl-1-dodecanaminium·bromide | [EINECS(EC#)]
221-923-7 | [Molecular Formula]
C26H56BrN | [MDL Number]
MFCD00041969 | [Molecular Weight]
462.63 | [MOL File]
3282-73-3.mol |
| Chemical Properties | Back Directory | [Appearance]
white powder | [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 | [Stability:]
Stable. Hygroscopic. Incompatible with strong oxidizing agents, moisture. | [Water Solubility ]
Soluble in hot and cold water. | [Sensitive ]
Hygroscopic | [BRN ]
3576662 | [CAS DataBase Reference]
3282-73-3(CAS DataBase Reference) | [EPA Substance Registry System]
3282-73-3(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xi,Xn | [Risk Statements ]
R36/37/38:Irritating to eyes, respiratory system and skin .
R22:Harmful if swallowed. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection . | [WGK Germany ]
3
| [F ]
3 | [TSCA ]
Yes | [HS Code ]
29239000 |
| Hazard Information | Back Directory | [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.] |
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