Substance profile
Antimony trifluoride
Antimony trifluoride is white orthorhombic crystals.
01 · Identification
What Antimony trifluoride is
Antimony trifluoride is white orthorhombic crystals. Its molecular formula is F3Sb and its molecular weight is 178.755 g/mol. It boils at 376 °C, melts at 287 °C.
Under the GHS it carries the signal word Danger. It is classed as corrosives.
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 |
|---|---|
| H331 | Toxic if inhaled. |
| H311 | Toxic in contact with skin. |
| H301 | Toxic if swallowed. |
| H411 | Toxic to aquatic life with long lasting effects. |
Precautionary statements: P260, P270, P271, P273, P280, P301, P302, P304, P310, P330, P352, P391, P501
03 · Physical and chemical properties
Antimony trifluoride 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 | 376 °C (708.8 °F) | HSDB | |
| 376 °C (708.8 °F) | at 760 mmHg | DOE PAC | |
| Melting point | 287 °C (548.6 °F) | HSDB | |
| 292.22 °C (558 °F) | CAMEO | ||
| 292 °C (557.6 °F) | DOE PAC | ||
| Density | 4.38 g/cm³ | HSDB | |
| 4.38 g/cm³ | at 21 °C | CAMEO | |
| 4.379 g/cm³ | at 20 °C | DOE PAC | |
| Solubility | Soluble in water | HSDB | |
| In water, 443 g/100 mL at 20 °C; 562 g/100 mL water at 30 °C | at 20 °C | HSDB | |
| In water, 492 g/100 g water at 25 °C | at 25 °C | HSDB | |
| Vapor pressure | 197.566 mmHg | HSDB | |
| 200 mmHg | at 292 °C | DOE PAC | |
| Autoignition temperature | Not flammable (USCG, 1999) | CAMEO |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Antimony trifluoride
Storage conditions
Keep container tightly closed in a dry and well-ventilated place. Store under inert gas. Keep in a dry place. Do not store in glass.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Trivalent antimony cmpd tend to form explosive mixtures with perchloric acid when hot. /Trivalent antimony cmpd/
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
A colorless, solid compound, toxic and corrosive. When heated to decomposition, it emits very toxic fumes of fluoride and metallic antimony [Lewis, 3rd ed., 1993, p. 83].
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Antimony trifluoride in the storage compatibility matrix →