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Quaternary Ammonium Salts
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Product Description
Dodecyl Trimethy Lammonium Bromide CAS#1119-94-4
Dodecyltrimethylammonium bromide is a white to off-white crystalline powder or crystal. The pure substance is a colorless crystal and is prone to absorbing moisture when exposed to air. It is highly soluble in water, forming a transparent solution. The aqueous solution is weakly alkaline (pH approximately 8 to 9, due to the hydrolysis of quaternary ammonium salts).

Product Name: | Dodecyltrimethylammonium Bromide |
Synonyms: | 1-Dodecanaminium,N,N,N-trimethyl-,bromide;ammonium,dodecyltrimethyl-,bromide;Dodecayltrimethylaminiumbromide;dodecyltrimethyl-ammoniubromide;e8013;n,n,n-trimethyl-1-dodecanaminiubromide;n,n,n-trimethyl-1-dodecanaminiubromidentis**ots0545456;CetrimideSubstitute |
CAS: | 1119-94-4 |
MF: | C15H34BrN |
MW: | 308.34 |
EINECS: | 214-290-3 |
Product Categories: | Ammonium Bromides (Quaternary);Quaternary Ammonium Compounds;Ion-pair Reagents |
Mol File: | 1119-94-4.mol |
Dodecyltrimethylammonium Bromide Chemical Properties |
Melting point | 246 °C (dec.)(lit.) |
density | 1.1566 (rough estimate) |
vapor pressure | 0Pa at 20℃ |
refractive index | 1.5260 (estimate) |
Fp | 246°C |
storage temp. | Store below +30°C. |
solubility | H2O: 0.1 M at 20 °C, clear, colorless |
form | Powder |
color | White to slightly yellow |
biological source | synthetic (oragnic) |
Water Solubility | soluble |
λmax | λ: 240 nm Amax: ≤0.2λ: 250 nm Amax: ≤0.03λ: 260 nm Amax: ≤0.02λ: 500 nm Amax: ≤0.02 |
Sensitive | Hygroscopic |
BRN | 3597463 |
InChIKey | XJWSAJYUBXQQDR-UHFFFAOYSA-M |
CAS DataBase Reference | 1119-94-4(CAS DataBase Reference) |
EPA Substance Registry System | 1-Dodecanaminium, N,N,N-trimethyl-, bromide (1119-94-4) |
Product Usage
(1-Dodecyl)trimethylammonium bromide is used as a surfactant, as an emulsifier of rubber and asphalt and as an anti-static agent of synthetic fiber. It acts as an ionic surfactant and useful in the preparation of gold nanopartilces along with sodium dodecylsulfate. It is also used as paint strippers and foaming stabilizers. It is used to prepare dodecyltrimethylammonium bromide. By using conductimetry, density measurements, and small angle neutron scattering, it is used to study the micelle formation in water-dimethylsulfoxide mixture. Further, it is a useful biochemical for proteomics research.
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