6330-46-7

Basic information

• Product Name: 1,1-bis(ethylsulfonyl)-2-methylpropane
• CAS NO: 6330-46-7
• Molecular Formula: C₈H₁₈O₄S₂
• Molecular Weight: 242.3561
• Mol File: 6330-46-7.mol

Chemical Properties

• Boiling Point: 444.4°C at 760 mmHg
• Flash Point: 283.2°C
• Density: 1.191g/cm³
• Vapor Pressure: 1.13E-07mmHg at 25°C
• Refractive Index: 1.469
• CAS DataBase Reference: 1,1-bis(ethylsulfonyl)-2-methylpropane(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1-bis(ethylsulfonyl)-2-methylpropane(6330-46-7)
• EPA Substance Registry System: 1,1-bis(ethylsulfonyl)-2-methylpropane(6330-46-7)

Safety Data

• Hazardous Substances Data: 6330-46-7(Hazardous Substances Data)

Usage

Usage

Solvent in various chemical processes

Physical state

Clear, colorless liquid

Odor

Mild

Solubility

Insoluble in water, soluble in organic solvents (e.g., ethanol, acetone)

Thermal stability

High

Toxicity

Low

Applications

Wide range due to its versatility and safety

Upstream product

• 854664-80-5 3,3-bis-ethanesulfonyl-2-methoxy-propan-1-ol 
• 854649-78-8 1,1-bis-ethylsulfanyl-2-butylsulfanyl-propane 
• 60220-45-3 2-ethylsulfanyl-propionaldehyde diethyldithioacetal 
• 13879-93-1 methylketene diethyldithioacetal 
• 19157-16-5 3-chloro-1,1-bis-ethylsulfanyl-propane 
• 34782-38-2 sodiodiethylsulphonylmethane 
• 75-26-3 isopropyl bromide 
• 7334-57-8 1,1-di(ethylthio)-2-methylpropane 
• 917-64-6 methyl magnesium iodide 
• 117891-76-6 1,1-bis-ethanesulfonyl-propene 
• 60-29-7 diethyl ether 

Relevant articles and documents

Equilibrium Acidities of Nitroalkanes in an Ionic Liquid

The acidity ladder scale in [BMPY][NTf2] was successfully expanded toward the weak acidity region for about five more pK units compared to the previously established one. This allows the acidities of a series of 13 aliphatic and aromatic nitroalkanes to be determined accurately by the UV-vis spectroscopic method. The acidity of nitroalkane in [BMPY][NTf2] covers ～8 pK units and is significantly weaker than those in DMSO and water. The Hammett plot for 4-substituted phenylnitromethanes shows an excellent linearity with a slope of 2.06, which is rather close to that in DMSO but significantly larger than that in water (0.80). The regression analyses reveal that the solvation behavior of [BMPY][NTf2] on the acidic dissociations of C-H acids is similar to that of DMSO.

Standard pKa scales of carbon-centered indicator acids in ionic liquids: Effect of media and structural implication

Energetics of bond dissociation, especially the R-H bond heterolysis free energy (pKa), has played a central role in promoting chemistry to become a rational science. Despite the oceans of acidity studies in the literature, the current knowledge is limited to that in the classical molecular solvents and is unable to be extended to anticipate the acidity changes in ionic media. As the latter is now very popular for replacing volatile organic solvents, it becomes highly desirable to know how the driving force of bond cleavage is varied as the medium composition is switched from neutral molecules to the charged ions. Here we describe a general approach to measure absolute pKa's in pure ionic liquid (IL). The standard conditions warranting accurate measurement were outlined. The pKa's of the selected 18 C-H type indicator acids in four ILs were determined and a convenient indicator platform was constructed for easy expansion of acidity scales. These absolute pKa's make possible, for the first time, direct comparisons of bond energies in IL with those in molecular solvent and in the gas phase and should be able to serve as the standard parameters for calibrating computational methods suitable for the studies in ionic media. The effect of cation and anion in IL in relation to structure was analyzed.