Substance profile
Antimony trichloride
Antimony trichloride is colorless orthorhombic crystals with an acrid pugent odor.
01 · Identification
What Antimony trichloride is
Antimony trichloride is colorless orthorhombic crystals with an acrid pugent odor. Its molecular formula is Cl3Sb and its molecular weight is 228.11 g/mol. It boils at 220 °C, melts at 73.4 °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 trichloride 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 | 220.3 °C (428.5 °F) | HSDB | |
| 222.78 °C (433 °F) | at 760 mmHg | CAMEO | |
| 223.5 °C (434.3 °F) | ICSC | ||
| Melting point | 73.4 °C (164.1 °F) | HSDB | |
| 72.78 °C (163 °F) | CAMEO | ||
| 73 °C (163.4 °F) | ICSC | ||
| Density | 3.14 g/cm³ | HSDB | |
| 1.5 g/cm³ | Antimony trichloride solution | HSDB | |
| 3.14 g/cm³ | at 20 °C | CAMEO | |
| Solubility | Soluble in acid, ethanol, benzene, acetone | HSDB | |
| Soluble in alcohol, chloroform (about 22%), benzene, acetone, carbon disulfide, dioxane, carbon tetrachloride (1.1 molar), ether | HSDB | ||
| In water, 987 g/100 g water at 25 °C | at 25 °C | HSDB | |
| Vapor pressure | 0.9976 mmHg | at 49 °C | ICSC |
| 1 mmHg | at 49.2 °C | DOE PAC | |
| 1 mmHg | sublimes, at 49.2 °C, sublimes | HSDB | |
| Critical temperature and pressure | 520.85 °C (969.5 °F) | HSDB | |
| Corrosivity | Corrodes most metals in presence of moisture | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Antimony trichloride
Storage conditions
Keep container tightly closed in a dry and well-ventilated place. Store under inert gas. Moisture sensitive. Reacts violently with water. Keep in a dry place. Storage class (TRGS 510): Non-combustible, corrosive hazardous materials.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Corrosive by vigorous reaction with moisture, generating heat and hydrogen chloride gas ...
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
ANTIMONY TRICHLORIDE is a strong oxidizing agent, and it is slowly hydrolyzed to generate hydrochloric acid and antimony oxides.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Antimony trichloride in the storage compatibility matrix →