boiling point of dimethyl sulfoxide：189 °C (372 °F)
Because of its high boiling point, 189 °C (372 °F), DMSO evaporates slowly at normal atmospheric pressure.
dmso chemical properties
| Appearance | Colorless, odorless, transparent liquid. |
| Purity | Typically available in high purity grades, including grade (≥99.9%). |
| Odor | Essentially odorless, though some sources mention a mild, garlic-like or onion-like odor when exposed to air. |
| Boiling Point | 189°C (372.2°F). |
| Density | 1.10 g/mL. |
| Solubility in Water | Miscible with water. |
| Flash Point | 87°C (188.6°F) (closed cup). |
| Flammable Limits | Lower explosive limit: 2.6%<br>Upper explosive limit: 42%. |
| Autoignition Temperature | 301°C (573.8°F). |
| Toxicity | Low toxicity; LD50 oral (rat): 28,300 mg/kg. |
| Storage Conditions | Store in a cool, dry place, protected from light and moisture. Keep away from strong oxidizing agents, acids, bases, and alkali metals. |
Safety and Toxicity of Dimethyl Sulfoxide
Although dimethyl sulfoxide has a wide range of applications, it also possesses certain toxicity and irritating properties. Safety precautions must be observed during use to avoid contact with sensitive areas such as skin and eyes. Additionally, dimethyl sulfoxide exhibits a degree of permeability, capable of penetrating the skin and potentially introducing toxic substances under certain conditions. Therefore, particular caution is required when handling solutions containing dimethyl sulfoxide.
dmso dimethyl sulfoxide uses
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