Liquid Dimethyl Sulfoxide DMSO Odorless Anti Inflammatory
Water content NMT0.1% dimethyl sulfoxide DMSO widely used in pharmaceuticals anti-inflammatory
Physical Form: liquid
Color: colorless
Odor: essentially odorless
Odor Threshold: not available
Specific Gravity: 1.101 at 20℃(68℉)(water=1)
Vapor Pressure: 0.55 mbar (0.46 mmHg) @ 20℃(68℉)
Vapor Density (Air=1): 2.7
Evaporation Rate (n-butyl acetate=1): 0.026
Melting Point: 18.3℃(65℃)
Viscosity at 25℃ (77℉): 1.98CPS
Solubility in water at 20℃: miscible
Octanol/Water Partition Coefficient: logP=-1.35
Sensitivity to Static Discharge:
Material is unlikely to accumulate a static charge which could act as an
ignition source.
Flash point and method:
89℃ (192℉) closed cup
95℃ (203℉) open cup
Flammable Limits (in air):
LEL: 3.0-3.5 % by volume
UEL: 42-63 % by volume
Auto-ignition Temperature: 300-302℃ (572-575℉)
10. STABILITY AND REACTIVITY
DMSO SPECIFICATION
| INSPECTION ITEMS | PRODUCT INDEX |
| DMSO CONTENT % | ≥99.97 |
| CRYSTALIZING POINT (℃) | ≥18.10 |
| ACID VALUE (mgKOH/g) | ≤0.03 |
| REFRACTIVE INDEX (nd20℃) | 1.4775 ~1.4790 |
| TRANSMITTANCE 400nm | ≥96.0 |
| WATER CONTENT % | 0.03 |
| SPECIFIC GRAVITY | 1.098 |
Stability: Stable
Conditions to avoid: Prolonged heating above 150℃
Materials to avoid:
Organic and inorganic acid chlorides, strong oxidizing agents, alkali metals, hydrobromic acid, acidic solutions of alkali bromides.
Hazardous Decomposition Products:
Sulfur dioxide, formaldehyde, methyl mercaptan, dimethyl sulfide, dimethyl disulfide.
Hazardous Polymerization: will not occur.
