2390-68-3

Basic information

• Product Name: Didecyldimethylammonium bromide
• Synonyms: DI-N-DECYLDIMETHYLAMMONIUM BROMIDE;DIDECYLDIMETHYLAMMONIUM BROMIDE;didecyl dimethyl Ammonium Bromide 70% solution;Di-n-decyl dimethylammonium bromide, 80% aq. soln.;DDAB-75;DDAB-80;1-Decanaminium, N-decyl-N,N-dimethyl-, bromide;DI-N-DECYLDIMETHYLAMMONIUM BROMIDE: 80% AQUEOUS GEL
• CAS NO: 2390-68-3
• Molecular Formula: Br*C₂₂H₄₈N
• Molecular Weight: 406.53
• EINECS: 219-234-1
• Product Categories: Ammonium Bromides (Quaternary);Quaternary Ammonium Compounds
• Mol File: 2390-68-3.mol
• Article Data: 6

Chemical Properties

• Melting Point: 149-151 °C(lit.)
• Appearance: off-white powder and chunks
• Refractive Index: 1.4570
• Storage Temp.: Sealed in dry,Room Temperature
• Solubility: Soluble in methanol.
• Stability: Stable. Incompatible with strong oxidizing agents.
• BRN: 6492993
• CAS DataBase Reference: Didecyldimethylammonium bromide(CAS DataBase Reference)
• NIST Chemistry Reference: Didecyldimethylammonium bromide(2390-68-3)
• EPA Substance Registry System: Didecyldimethylammonium bromide(2390-68-3)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-45-36/37/39-28
• WGK Germany: 3
• F: 3-10
• Hazardous Substances Data: 2390-68-3(Hazardous Substances Data)

Usage

Chemical Properties

off-white powder and chunks

Uses

Didecyldimethylammonium bromide (DDAB) is commonly used as a surfactant and a phase transfer catalyst. It is also used in the preparation of hydrophobic ammonium-based ionic liquid.

InChI:InChI=1S/C22H48N.BrH/c1-5-7-9-11-13-15-17-19-21-23(3,4)22-20-18-16-14-12-10-8-6-2;/h5-22H2,1-4H3;1H/q+1;/p-1

Upstream product

• 67-56-1 methanol 
• 112-29-8 1-bromo dodecane 
• 1120-24-7 N,N-dimethyldecylamine 

Downstream Products

• 934544-42-0 diclofenac didecyldimethylammonium salt 
• 7173-51-5 didecyldimethylammonium chloride 
• 23381-52-4 (bisdecyl)(dimethyl)ammonium hydroxide 
• 934544-26-0 didecyldimethylammonium sulfacetamide 
• 934590-93-9 didecyldimethylammonium penicillin G 
• 934544-38-4 didecyldimethylammonium salicylate 

Relevant articles and documents

Fluorescence Quenching in Double-Chained Surfactants. 1. Theory of Quenching in Micelles and Vesicles

The time-resolved fluorescence quenching technique is used to investigate the aggregation behavior of double-chained surfactants.With a new extension of this technique, surfactant solutions consisting of (1) only vesicles, (2) mixtures of vesicles and micelles, or (3) only micelles can be distinguished.When applied to solutions of didodecyldimethylammonium acetate, the microstructure is determined to be composed of mainly small micelles over a wide concentration range (0.001-0.1 M); the contribution of vesicles to the total surfactant inventory is quite small.In studies of double-chained surfactants, the technique is particularly valuable for following the transformation of liquid crystalline dispersions to micellar solutions upon heating or dilution.

Acidic three-liquid-phase microemulsion systems based on balanced catalytic surfactant for epoxidation and sulfide oxidation under mild conditions

Didecyldimethylammonium tungstate has been designed as a balanced catalytic surfactant to form acidic three-liquid-phase microemulsion systems at room temperature in the presence of water, a non-chlorinated solvent and dimethyldioctylammonium salts (hydrogen sulfate and dihydrogen phosphate). The triphasic system is efficient for the oxidation of olefins, sulfides and thiophenes under mild conditions. Moreover, the recovery and reusability of the catalyst, the straightforward separation of products and catalysts in two distinct phases as well as the possible use of environmentally friendly solvents such as tert-butyl acetate, make this system particularly attractive for catalytic oxidation reactions involving hydrogen peroxide as the primary oxidant under acidic or neutral conditions.

METHODS OF EXCHANGING ANIONS OF TETRAALKYLAMMONIUM SALTS

Methods are provided for producing tetra-C1 -C20 alkyl or aryl-substituted Alkyl quaternary ammonium carbonates and bicarbonates. In methods of this invention, at least a tetra-C-1 -C20 alkyl or aryl-substituted alkyl quaternary ammonium bromide, a metal hydroxide, and a suitable solvent are combined, said metal hydroxide being present in a stoichiometric excess as to the quaternary ammonium bromide