DMSO Properties
Molecular formula | C2H6OS |
Molecular weight | 78.13 g/mol |
CAS No. | [67-68-5] |
Appearance | Colourless liquid |
Specific Gravity | 1.1 (20°C) |
Melting point | 18 °C (66°F) |
Boiling point | 189 °C (372°F) |
Solubility in water | Miscible |
Acidity (pKa) | 35 |
Flash Point | 95°C (open cup) |
Viscosity | 2.0 cP (25°C) |
Synthesis and Production
DMSO is made by the oxidation of Dimethyl Sulfide ( DMS ) which used to be produced as a by product of the pulping process in the manufacture of paper.
It is now produced, almost, exclusively from DMS made by the gas phased ethioetherification of hydrogen sulfide and methanol.
So how does DMSO work?
DMSO (Dimethyl Sulfoxide) is a truly extraordinary molecule. Its unique chemical structure gives it a wide range of therapeutic properties. DMSO penetrates tissues deeply at a cellular level. This allows it to interact directly with natural bodily functions (Quite unlike most conventional treatments). So why is it so effective at relieving pain & healing? Understanding this requires examining its chemical structure.
The molecular formula of DMSO is C2H6OS & is made up of three essential components which are as follows:
- Two Methyl groups (-CH3) These are small, nonpolar groups that promote DMSO’s ability to interact with both water-soluble & fat-soluble compounds.
- One Oxygen Atom- This atom forms a double bond with the Sulphur Atom, representing the sulfoxide group (S=O). This is a highly polar group & gives DMSO it’s compatibility for water & biological membranes & allows it to dissolve both hydrophilic & hydrophobic substances.
- One Sulphur Atom (S)- The sulphur atom is the central atom in the molecule, holding the two methyl groups & the oxygen atom & is the key to the anti-inflammatory & antioxidant properties of DMSO. It is the sulphur that plays a major role in detoxification & cellular repair.