When Minimal Water Content is Critical
DMSO Anhydrous Grade is Dimethyl Sulfoxide (DMSO) with an extremely low moisture content that is produced under exacting manufacturing conditions to ensure dryness. This product eliminates the need for further solvent purification and processing.
Choose DMSO Anhydrous Grade for:
Water-Sensitive Compound Synthesis
Water present in DMSO can react with strong bases such as sodium hydride, butyllithium, and alkoxides. This can result in lower yields, and byproduct formation. DMSO Anhydrous Grade contains less than 50 ppm water, and minimizes losses to these side reactions.
Water Synthesis Analytical Applications
The potent solvent strength of DMSO makes it a valuable medium for the analysis and characterization of difficult-to-dissolve compounds and polymers. In certain analytical methods, water offers unwanted interference and can provide spurious information. This is especially true of IR Spectroscopy, wherein a small amount of water can obscure a large portion of the spectrum.
Compound Library Management
DMSO Anhydrous Grade may be used to store materials for later testing and its low water levels minimize degradation that may occur through association with water and hydrolysis.
Representation Spectification
| Representative Test Methods | Values |
|
Assay, (% Min. by GLC) |
99.9% |
|
Water (PPM Max. by GC) |
50 |
|
Color, (Max. APHA) |
10 |
|
Titrable Acid, (Max. meq /g) |
0.001 |
|
Residue after Evaporation, (PPM Max.) |
5 |
This illustration does not constitute the specification. Specifications are available upon request.
DMSO Anhydrous Grade at a Glance
| Physical Properties Data | |
|
Density, at 25°C (77°F) |
1.0955 |
|
Boiling Point (atmos. pressure) |
189°C |
|
Viscosity @ 20°C (68°F) |
2.14 cP |
| Refractive Index n20 D @20°C (68°F) |
1.4785 |
|
Surface Tension @ 20°C (68°F) |
43 dynes/cm |
|
Specific Heat @ 25°C (77°F) |
0.45 cal /g/ ̊C |
| Heat of Vaporization @ 25°C (77°F) | 162 cal/g |
| Electrical Conductivity @ 20°C (68°F) | 3 x 10-8/ohm/cm |
| Dielectric Constant @ 20°C (68°F) | 48 |
|
Dipole Moment |
4.3 D |
|
Vapor Pressure @ 25°C (77°F) |
0.6 mm Hg |
Solubility
Soluble in water, light alcohols and diethyl either.
Regulatory
CAS: 67-68-5
EINECS: 200-664-3
HMIS and NFPA Hazard Ratings: Health – 1, Flammability – 1, Chemical Reactivity – 0
Packaging
Drums – 500-pound HDPE
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