Substance profile
2,2'-thiodiethanol
2,2'-thiodiethanol is a liquid with a characteristic odor.
01 · Identification
What 2,2'-thiodiethanol is
2,2'-thiodiethanol is a liquid with a characteristic odor. It boils at 282 °C, melts at -10.2 °C.
Under the GHS it carries the signal word Warning.
Other names for 2,2'-thiodiethanol
- thiodiglycol
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 |
|---|---|
| H319 | Causes serious eye irritation. |
Precautionary statements: P264, P280, P305, P313, P337, P338
03 · Physical and chemical properties
2,2'-thiodiethanol 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 | 282 °C (539.6 °F) | HSDB | |
| 282 °C (539.6 °F) | at 760 mmHg | HMDB | |
| Melting point | -10.2 °C (13.6 °F) | HSDB | |
| -16 °C (3.2 °F) | DOE PAC | ||
| -14 °C (6.8 °F) | range, midpoint shown | ICSC | |
| Density | 1.1803 g/cm³ | HSDB | |
| 1.18 g/cm³ | ICSC | ||
| 1.1793 g/cm³ | at 25 °C | HSDB | |
| Solubility | Miscible with water | HSDB | |
| Miscible with ethanol, chloroform, ethyl acetate; soluble in ether; slightly soluble in benzene | HSDB | ||
| In water, miscible at 20 °C | at 20 °C | HSDB | |
| Vapor pressure | 0.000509 mmHg | at 25 °C | HSDB |
| 0.0032 mmHg | at 25 °C | ICSC | |
| 0.0032 mmHg | Haz-Map | ||
| Flash point | 113 °C (235.4 °F) | HSDB | |
| 160 °C (320 °F) | Closed cup | HSDB | |
| 160 °C (320 °F) | ICSC | ||
| Autoignition temperature | 297.78 °C (568 °F) | HSDB | |
| 260 °C (500 °F) | ICSC | ||
| Lower explosive limit (LEL) | 1.2 % by volume | ICSC | |
| Upper explosive limit (UEL) | 5.2 % by volume | ICSC | |
| Vapor density | 4.21 (air = 1) | HSDB | |
| 4.22 (air = 1) | ICSC |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling 2,2'-thiodiethanol
Storage conditions
Keep container tightly closed in a dry and well-ventilated place.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Reacts violently with strong acids and strong oxidants. This produces hydrogen sulfide.
Source: Hazardous Substances Data Bank (HSDB)
Planning storage for a mix of chemicals? Check 2,2'-thiodiethanol in the storage compatibility matrix →