401788-98-5

Basic information

• Product Name: 1-BUTYL-3-METHYLIMIDAZOLIUM METHYLSULFATE
• Synonyms: 1-BUTYL-3-METHYLIMIDAZOLIUM METHYLSULFATE;BMIM MEOSO3;BMIMMESO4;BASIONIC(TM) AC 01;BASIONIC(TM) LQ 02;1-BUTYL-3-METHYLIMIDAZOLIUM METHYL SULFA;1-Butyl-3-methylimidazoliummethanesulfonate,98%[BMIM][MeSO4];1-BUTYL-3-METHYLIMIDAZOLIUM METHYLSULFATE [BMLM] [MESO4]
• CAS NO: 401788-98-5
• Molecular Formula: C9H18N2O4S
• Molecular Weight: 250.32
• Product Categories: organic amine salt;Basionics;Chemical Synthesis;Imidazolium;Ionic Liquids;Specialty Synthesis
• Mol File: 401788-98-5.mol
• Article Data: 11

Chemical Properties

• Melting Point: -4°C(lit.)
• Appearance: yellow/liquid
• Density: 1.21 g/mL at 20 °C
• Refractive Index: n20/D 1.478
• Stability: hygroscopic
• CAS DataBase Reference: 1-BUTYL-3-METHYLIMIDAZOLIUM METHYLSULFATE(CAS DataBase Reference)
• NIST Chemistry Reference: 1-BUTYL-3-METHYLIMIDAZOLIUM METHYLSULFATE(401788-98-5)
• EPA Substance Registry System: 1-BUTYL-3-METHYLIMIDAZOLIUM METHYLSULFATE(401788-98-5)

Safety Data

• Hazard Codes: C
• Statements: 34
• Safety Statements: 26-36-45
• RIDADR: UN 3265 8/PG 2
• WGK Germany: 3
• F: 3-10
• HazardClass: 8
• PackingGroup: II
• Hazardous Substances Data: 401788-98-5(Hazardous Substances Data)

Usage

Conductivity

2.20 mS/cm (30 °C)

InChI:InChI=1/C8H15N2.CH4O4S/c1-3-4-5-10-7-6-9(2)8-10;1-5-6(2,3)4/h6-8H,3-5H2,1-2H3;1H3,(H,2,3,4)/q+1;/p-1

Upstream product

• 18165-71-4 Methyl(trimethylsilyl)sulfat 
• 79917-90-1 1-butyl-3-methylimidazolium chloride 
• 77-78-1 dimethyl sulfate 
• 616-47-7 1-methyl-1H-imidazole 
• 625-22-9 sulfuric acid dibutyl ester 
• 4316-42-1 1-Butylimidazole 
• 19803-43-1 sulfuric acid monomethyl ester; ammonium salt 

Downstream Products

• 174501-65-6 1-butyl-3-methylimidazolium Tetrafluoroborate 
• 262297-13-2 1-butyl-3-methylimidazolium hydrogen sulfate 

Relevant articles and documents

Physical properties of 1-butyl-3-methylimidazolium methyl sulfate as a function of temperature

Density, speed of sound, refractive index, dynamic viscosity, and surface tension measurements of 1-butyl-3-methylimidazolium methyl sulfate have been made as a function of temperature. The synthesis of the ionic liquid is given. The low viscosity of the ionic liquid suggests its use as a solvent in the extraction process for the separation of azeotropic mixtures. The thermal expansion coefficient of the ionic liquid was calculated from the density, and the results are discussed. An analysis of the influence of the alkyl chain length of the cation on the density was performed by comparison with recently published values.

Synthesis method of 1-butyl-3-methylimidazole tetrafluoroborate ionic liquid

The invention discloses a synthesis method of a 1-butyl-3-methylimidazole tetrafluoroborate ionic liquid. The method comprises the following steps: with N-butylimidazole and dimethyl sulfate as raw materials, carrying out a reaction in a pressure reactor to obtain an intermediate 1-butyl-3-methylimidazole methyl sulfate; and reacting the obtained intermediate 1-butyl-3-methylimidazole methyl sulfate with sodium tetrafluoroborate in a pressure reaction container, and carrying out filtering and concentrating to obtain the 1-butyl-3-methylimidazole tetrafluoroborate ionic liquid. The method has the advantages of simple process steps, strong operability, no generation of solid wastes in the synthesis process, environmental protection and high product yield.

A quick, simple, robust method to measure the acidity of ionic liquids

Introduced here is a quick, simple, robust method to measure acidity in ionic liquid (IL) systems by the use of the NMR-probe mesityl oxide. Acidity corresponding to a Hammett acidity of -1 to -9 can be measured reliably using this technique, a range that vastly exceeds that of any single UV-vis probe.