445473-58-5

Basic information

• Product Name: 1-BUTYL-3-METHYLIMIDAZOLIUM OCTYLSULFATE
• Synonyms: ECOENG 418;1-BUTYL-3-METHYLIMIDAZOLIUM OCTYLSULFATE;1-Butyl-3-methylimidazolium N-octylsulfate;1-Butyl-3-methylimidazoliumoctylsulfate,98%[BMIM][OcSO4];1-BUTYL-3-METHYLIMIDAZOLIUM OCTYLSULFATE [BMLM] [OCSO4];1-n-Butyl-3-methylimidazolium n-octylsulfate, 99%;1-n-butyl-3-MethyliMidazoliuM octyl sulfate;1-Butyl-3-methylimidazolium 1-octyl sulfate
• CAS NO: 445473-58-5
• Molecular Formula: C16H32N2O4S
• Molecular Weight: 348.5
• Product Categories: Chemical Synthesis;Imidazolium;Ionic Liquids;organic amine salt
• Mol File: 445473-58-5.mol
• Article Data: 5

Chemical Properties

• Melting Point: 37°C
• Appearance: beige/solid
• Density: 1.07 g/cm3
• Storage Temp.: Store below +30°C.
• Stability: hygroscopic
• CAS DataBase Reference: 1-BUTYL-3-METHYLIMIDAZOLIUM OCTYLSULFATE(CAS DataBase Reference)
• NIST Chemistry Reference: 1-BUTYL-3-METHYLIMIDAZOLIUM OCTYLSULFATE(445473-58-5)
• EPA Substance Registry System: 1-BUTYL-3-METHYLIMIDAZOLIUM OCTYLSULFATE(445473-58-5)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 36/37-26
• WGK Germany: 3
• Hazardous Substances Data: 445473-58-5(Hazardous Substances Data)

Usage

Uses

1-Butyl-3-methylimidazolium octyl sulfate can be used as a solvent during the hydroformylation of 1-octene to form nonanals in the presence of a rhodium catalyst.

General Description

1-Butyl-3-methylimidazolium octyl sulfate is a halogen-free ionic liquid. It behaves as a surfactant when the critical micelle concentration (CMC) is above 0.031M.

InChI:InChI=1/C8H15N2.C8H18O4S/c1-3-4-5-10-7-6-9(2)8-10;1-2-3-4-5-6-7-8-12-13(9,10)11/h6-8H,3-5H2,1-2H3;2-8H2,1H3,(H,9,10,11)/q+1;/p-1

Upstream product

• 142-31-4 sodium octyl sulphate 
• 79917-90-1 1-butyl-3-methylimidazolium chloride 
• 2649-10-7 n-octyl sulfate 
• 4316-42-1 1-Butylimidazole 
• 111-87-5 octanol 
• 77-78-1 dimethyl sulfate 
• 67633-88-9 ammonium octyl sulfate 
• 85100-77-2 1-n-butyl-3-methylimidazolim bromide 

Relevant articles and documents

Aggregation of 1-alkyl-3-methylimidazolium octylsulphate ionic liquids and their interaction with Triton X-100 micelles

Halogen-free surface active and biamphiphilic ionic liquids 1-alkyl-3-methylimidazolium octylsulphates (Cnmim C8SO4, n = 4, 6, 8, 10) were synthesized and their aqueous solution behaviour was studied using surface tension, conductance, 1H nuclear magnetic resonance (1H-NMR), and small angle neutron scattering (SANS). These catanionic type surfactants demonstrate high surface activity. SANS data revealed that C4mim C8SO4 and C6mim C8SO4 form spherical and ellipsoidal micelles in water, while those with long chain imidazolium cations (C8mim C8SO4 and C10mim C8SO4) depict limited aqueous solubility and form vesicles. The effect of addition of these ionic liquids on the phase and aggregation behaviour of non-ionic surfactant Triton X-100 (TX-100) solution was investigated using cloud point (CP), 1H-NMR, zeta potential and scattering (DLS and SANS) techniques. These Cnmim C8SO4 ionic liquids show remarkable changes in the CP of TX-100 aqueous solutions and micelle size depending on the alkyl chain of the cation and anion. The site of Cnmim C8SO4 in TX-100 micelles was investigated by NMR. The SANS data for the size/shape of aqueous TX-100 with C4mim C8SO4 and C6mim C8SO4 systems showed an ellipsoidal to smaller ellipsoidal micelle transition. Addition of C8mim C8SO4 and C10mim C8SO4 in TX-100 showed a micelle transition of ellipsoidal to smaller ellipsoidal at lower concentration and ellipsoidal to extended ellipsoidal at higher concentration, while addition of 100 mM C10mim C8SO4 in TX-100 formed vesicle structures. The obtained results are discussed in terms of the formation of charged mixed micelles of TX-100 with Cnmim C8SO4 and TX-100 micelles desirably tailored by adding appropriate concentrations of ionic liquids.

Further investigation of the biodegradability of imidazolium ionic liquids

In continuation of our earlier investigations, this report presents a rationale behind the design of a series of imidazolium based ionic liquids and their biodegradation using the CO2 headspace test (ISO 14593 method, OECD 310). The effect on biodegradability of these salts through variation of the N-substituted side chains of imidazolium ions was examined further through incorporation of various functional groups and increased alkyl chain lengths. A series of anions containing moieties known to be biodegradable were also incorporated into a number of imidazolium based salts and examined in a similar fashion.

METHOD FOR THE PRODUCTION OF IONIC LIQUIDS CONTAINING ALKYL SULPHATE AND FUNCTIONALISED ALKYL SULPHATE-ANIONS

The invention relates to a method for the production of ionic liquids of general formula [cation][R' -0--S03].