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重要文件

359025

Sigma-Aldrich

二十二烷基二甲基溴化铵

98%

同義詞:

DDAB, 溴化双十二烷基二甲基铵

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About This Item

線性公式:
[CH3(CH2)11]2N(CH3)2(Br)
CAS號碼:
分子量::
462.63
Beilstein:
3576662
EC號碼:
MDL號碼:
分類程式碼代碼:
12352116
PubChem物質ID:
NACRES:
NA.22
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化驗

98%

mp

157-162 °C (lit.)

SMILES 字串

[Br-].CCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCC

InChI

1S/C26H56N.BrH/c1-5-7-9-11-13-15-17-19-21-23-25-27(3,4)26-24-22-20-18-16-14-12-10-8-6-2;/h5-26H2,1-4H3;1H/q+1;/p-1

InChI 密鑰

XRWMGCFJVKDVMD-UHFFFAOYSA-M

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應用

十二烷基二甲基溴化铵(DDAB)是一种双链阳离子表面活性剂。[1][2]

可能的应用:
  • DDAB可用作辅助表面活性剂,以合成具有可调层数的明确的多层囊泡二氧化硅。[3]
  • 作为表面活性剂合成金纳米团簇和纳米立方体。[4][5]
  • 形成过饱和反胶束和微乳液,作为硫酸钡合成的有组织反应微环境。[6]
  • DDAB可以通过直接离子交换对钙蒙脱石进行改性,以合成热稳定的有机粘土。[7]

象形圖

Exclamation mark

訊號詞

Warning

危險聲明

危險分類

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

標靶器官

Respiratory system

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

dust mask type N95 (US), Eyeshields, Gloves


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分析證明 (COA)

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A cationic-cationic co-surfactant templating route for synthesizing well-defined multilamellar vesicular silica with an adjustable number of layers.
Zhang Y.
Chemical Communications (Cambridge, England), 50(22), 2907-2909 (2014)
Effects of block length and structure of surfactant on self-assembly and solution behavior of block ionomer complexes.
Bronich TK.
Langmuir, 16(2), 481-489 (2000)
R A Carvalho et al.
Journal of colloid and interface science, 354(2), 725-732 (2010-12-15)
NMR spectroscopy has been used to study and characterize the interactions in solution between β-CD and alkyl-α,ω-bis(dodecyldimethyl ammonium bromide) gemini surfactants with the following head-group spacer lengths: 2, 4, 6, 8, and 10. The application of the method of continuous
Thermally-induced formation of atomic Au clusters and conversion into nanocubes.
Jin R.
Journal of the American Chemical Society, 126(32), 9900-9901 (2004)
Sana Ghrab et al.
Environmental science and pollution research international, 25(19), 18251-18262 (2017-05-14)
Essential oils from aromatic plants are currently mentioned as suitable tools for excellent protection of stored grains from insect pest attacks. The present work aimed to study the processes of the synthesis insecticidal formulation with clay. The active terpenic compounds

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    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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