Substance profile
Antimony pentachloride
Antimony pentachloride is a colorless or yellow liquid with a pungent; offensive odor.
01 · Identification
What Antimony pentachloride is
Antimony pentachloride is a colorless or yellow liquid with a pungent; offensive odor. Its molecular formula is Cl5Sb and its molecular weight is 299 g/mol. It boils at 140 °C, melts at 4 °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 |
|---|---|
| H314 | Causes severe skin burns and eye damage. |
| H411 | Toxic to aquatic life with long lasting effects. |
Precautionary statements: P260, P273, P280, P301, P310, P331, P391, P501
03 · Physical and chemical properties
Antimony pentachloride 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 | 140 °C (284 °F) | HSDB | |
| 175 °C (347 °F) | at 760 mmHg | CAMEO | |
| 69 °C (156.2 °F) | at 18 mmHg (reduced pressure) | HSDB | |
| Melting point | 4 °C (39.2 °F) | HSDB | |
| 2.78 °C (37 °F) | CAMEO | ||
| Density | 3.1 g/cm³ | HSDB | |
| 2.354 g/cm³ | at 20 °C | CAMEO | |
| 2.336 g/cm³ | at 25 °C | DOE PAC | |
| Solubility | Reacts with water | HSDB | |
| Soluble in an aqueous solution of tartaric acid in hydrochloric acid and chloroform | HSDB | ||
| Soluble in hydrochloric acid, chloroform, carbon tetrachloride | HSDB | ||
| Vapor pressure | 1 mmHg | at 22.7 °C | HSDB |
| 1 mmHg | Haz-Map | ||
| Corrosivity | Causes corrosion of metal | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Antimony pentachloride
Storage conditions
Separate from acids, alkalies. Store in a cool, dry, well-ventilated location.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Incompatible with N-chlorodimethylamine, oxygen difluoride, and phosphonium iodide.
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
ANTIMONY PENTACHLORIDE is a strong oxidizing agent, and it is easily hydrolyzed to generate hydrochloric acid and antimony oxides.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Antimony pentachloride in the storage compatibility matrix →