Substance profile
Dimethyl Disulfide
Dimethyl Disulfide is a yellow liquid with a garlic-like odor.
01 · Identification
What Dimethyl Disulfide is
Dimethyl Disulfide is a yellow liquid with a garlic-like odor. It boils at 110 °C, melts at -84.7 °C, is practically insoluble in water.
Under the GHS it carries the signal word Danger. It is classed as flammable agents - 3rd degree.
Other names for Dimethyl Disulfide
- dimethyl disulphide
02 · GHS classification
Hazards and label elements
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
| Code | Hazard statement |
|---|---|
| H225 | Highly flammable liquid and vapour. |
| H331 | Toxic if inhaled. |
| H301 | Toxic if swallowed. |
| H336 | May cause drowsiness or dizziness. |
| H370 | Causes damage to organs <or state all organs affected, if known> <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H319 | Causes serious eye irritation. |
| H317 | May cause an allergic skin reaction. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Precautionary statements: P210, P233, P241, P242, P260, P261, P264, P270, P271, P272, P273, P280, P301, P304, P305, P308, P310, P311, P313, P330, P333, P337, P338, P391, P403, P501
03 · Physical and chemical properties
Dimethyl Disulfide properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 109.72 °C (229.5 °F) | HSDB | |
| 109.72 °C (229.5 °F) | at 760 mmHg | CAMEO | |
| 110 °C (230 °F) | ICSC | ||
| Melting point | -84.67 °C (-120.4 °F) | HSDB | |
| -84.72 °C (-120.5 °F) | CAMEO | ||
| -85 °C (-121 °F) | ICSC | ||
| Density | 1.06 g/cm³ | ICSC | |
| 1.0625 g/cm³ | at 20 °C | HSDB | |
| 1.065 g/cm³ | at 20 °C | CAMEO | |
| Solubility | Insoluble in water | HSDB | |
| Miscible with ethanol, ethyl ether | HSDB | ||
| Completely miscible with most organic solvents | HSDB | ||
| Vapor pressure | 28.7 mmHg | at 25 °C | HSDB |
| 28.6 mmHg | at 25 °C | CAMEO | |
| 28.5023 mmHg | at 25 °C | ICSC | |
| Flash point | 24 °C (75.2 °F) | closed cup | HSDB |
| 24.44 °C (76 °F) | CAMEO | ||
| 10 °C (50 °F) | ICSC | ||
| Autoignition temperature | 300 °C (572 °F) | above this value | ICSC |
| Lower explosive limit (LEL) | 1.1 % by volume | ICSC | |
| Upper explosive limit (UEL) | 16 % by volume | ICSC | |
| Vapor density | 3.24 (air = 1) | HSDB | |
| 3.2 (air = 1) | ICSC | ||
| Odor threshold | 0.029 mg/cu m (recognition in air) | HSDB | |
| 0.003-0.014 mg/cu m (detection in air) | HSDB | ||
| 3X10-3 ppm in water | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Dimethyl Disulfide
Incompatible materials
... Can react vigorously with oxidizing materials.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
DIMETHYL DISULFIDE is a reducing agent. A dangerous fire hazard when exposed to oxidizing materials. Emits toxic fumes of oxides of sulfur when heated to decomposition or on contact with acids [Sax, 9th ed., 1996, p. 1320].
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Dimethyl Disulfide in the storage compatibility matrix →