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 · Identifiers
Antimony trichloride identifiers and molecular data
Antimony trichloride CAS number and EC number
Antimony trichloride molecular formula and molecular weight
03 · GHS classification
Antimony trichloride hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Antimony trichloride pictograms and signal word
Antimony trichloride hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Skin corrosion/irritation GHS chapter 3.2 | Category 1A or 1B or 1C | H314 | GHS05 |
| Hazardous to the aquatic environment - chronic GHS chapter 4.1 | Category 2 | H411 | GHS09 |
Where two values are shown with “or”, the hazard statement is shared by more than one category or by more than one class, and the code alone does not say which. H272, for example, belongs to oxidising liquids and to oxidising solids — the physical state decides. The binding answer for a specific entry is in the CLP Annex VI table itself.
Antimony trichloride hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H314 | Causes severe skin burns and eye damage. |
| H411 | Toxic to aquatic life with long lasting effects. |
This page lists only the codes assigned to Antimony trichloride. The full reference lives on the hazard statements hub, the precautionary statements hub and the GHS pictograms hub.
Safety Data Sheet
Getting an SDS for Antimony trichloride
A Safety Data Sheet is written for a product, not for a substance: the supplier of the grade you actually buy issues it, so two suppliers of Antimony trichloride issue two different sheets. That is why there is no single authoritative SDS for a substance to download — what there is, is the job of collecting the sheets for the products you hold and keeping them current as suppliers revise them.
04 · Precautionary statements
Antimony trichloride precautionary statements
CLP Annex VI assigns 8 precautionary statements to Antimony trichloride. They are grouped the way a label groups them: what to do before handling, what to do when something has already happened, how to store it and how to dispose of it.
Prevention
What to do before and during handling so the hazard never happens.
Response
What to do once exposure, spillage or fire has already happened.
Disposal
What has to happen to the contents and the empty container.
Reading the notation. … is a blank the supplier fills in — not a truncated sentence.· [square brackets] mark a part printed only when it applies.
05 · Names in the regulation
Antimony trichloride name in 23 EU languages
CLP Annex VI Part 3 is published in every language edition of the regulation, and the identification column is written out in each of them. Nothing below is translated by us: each line is the name as that edition prints it. Under Art. 18(2) the substance name from Annex VI is a lawful product identifier, so this is the wording to put on a label going to that market — and where the cell lists several designations, any one of them qualifies.
| Language | Name in CLP Annex VI Part 3 |
|---|---|
| Bulgarian български | антимонов трихлорид |
| Spanish español | Tricloruro de antimonio |
| Czech čeština | chlorid antimonitý |
| Danish dansk | antimontrichlorid |
| German Deutsch | Antimontrichlorid |
| Estonian eesti | antimontrikloriid |
| Greek ελληνικά | τριχλωριούχο αντιμόνιο |
| English English | antimony trichloride |
| French français | trichlorure d'antimoine |
| Croatian hrvatski | antimonov triklorid |
| Italian italiano | tricloruro di antimonio |
| Latvian latviešu | antimona trihlorīds |
| Lithuanian lietuvių | stibio trichloridas |
| Hungarian magyar | antimon-triklorid |
| Maltese Malti | triklorur tal-antimonju |
| Dutch Nederlands | antimoontrichloride |
| Polish polski | chlorek antymonu(III) trichlorek antymonuchlorek antymonawy |
| Portuguese português | tricloreto de antimónio |
| Romanian română | triclorură de antimoniu |
| Slovak slovenčina | chlorid antimonitý |
| Slovenian slovenščina | antimonov triklorid |
| Finnish suomi | antimonitrikloridi |
| Swedish svenska | antimontriklorid |
All 23 language editions of Annex VI carry this entry. Irish is the twenty-fourth official EU language and has no line here for a different reason: no consolidated CLP text has ever been published in Irish, so there is no Irish edition of Annex VI to quote a name from. Source: consolidated CLP, CELEX 02008R1272, language editions. © European Union, https://eur-lex.europa.eu — only the electronic Official Journal of the European Union is authentic.
06 · Label elements
Antimony trichloride GHS label elements
Everything CLP Annex VI fixes for Antimony trichloride, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Antimony trichloride
- Causes severe skin burns and eye damage.
- Toxic to aquatic life with long lasting effects.
- Do not breathe dust/fume/gas/mist/vapours/spray.
- Avoid release to the environment.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF SWALLOWED:
- Immediately call a POISON CENTER/doctor/…
- Do NOT induce vomiting.
- Collect spillage.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Antimony trichloride in the GHS label constructor →
07 · Health hazards
Antimony trichloride health hazards and exposure limits
Antimony trichloride hazard summary
A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; Can cause pulmonary edema; May have adverse effects on the heart; [ICSC] Causes myocardial degeneration and death in feeding studies of rats for 10 days at 135 mg/kg; [HSDB] Reacts violently with water; A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; Inhalation may cause chemical pneumonitis; [MSDSonline] See Antimony and linked occupational diseases.
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Antimony trichloride occupational exposure limits
| Limit | Value | Source |
|---|---|---|
| PEL | 0.5 [mg/m3], as Sb | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
| IDLH | 50.0 [mg/m3], as Sb | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
| IDLH | 50 mg/cu m, as Sb /Antimony/ | Hazardous Substances Data Bank (HSDB) |
These are United States values. The European Union sets its own indicative and binding limits, and the figure that applies at a given workplace is the one in the local regulation — not the one shown here.
08 · 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.
Antimony trichloride boiling point
| 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 |
Antimony trichloride melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 73.4 °C (164.1 °F) | HSDB | |
| 72.78 °C (163 °F) | CAMEO | ||
| 73 °C (163.4 °F) | ICSC |
Antimony trichloride density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 3.14 g/cm³ | HSDB | |
| 1.5 g/cm³ | Antimony trichloride solution | HSDB | |
| 3.14 g/cm³ | at 20 °C | CAMEO |
Antimony trichloride solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| 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 |
Antimony trichloride vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| 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 |
Antimony trichloride critical temperature and pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Critical temperature and pressure | 520.85 °C (969.5 °F) | HSDB |
Antimony trichloride corrosivity
| Property | Value | Conditions | Source |
|---|---|---|---|
| Corrosivity | Corrodes most metals in presence of moisture | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
Antimony trichloride storage and handling
Antimony trichloride safe storage
Separated from food and feedstuffs. Dry. Well closed.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
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)
Antimony trichloride incompatible materials
Corrosive by vigorous reaction with moisture, generating heat and hydrogen chloride gas ...
Source: Hazardous Substances Data Bank (HSDB)
Antimony trichloride 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 →
10 · Transport
Antimony trichloride UN number and transport classification
Transport classification is a separate system from the GHS classification above. It decides how a package is marked and how a load may be carried; it does not follow from the workplace label, and the workplace label does not follow from it. The entries below are linked by CAS number, never by name.
Antimony trichloride under UN 1733 — shipping name, class and packing group
Europe · ADR 2025, Table A
| Proper shipping name (3.1.2) | Class | Classification code | PG | Labels (column 5) |
|---|---|---|---|---|
| ANTIMONY TRICHLORIDE | 8 | C2 | II | |
Source: ADR 2025, Table A of Chapter 3.2 · ECE/TRANS/352 Vol. I (UNECE). Class 8 is “Corrosive substances” (ADR 2.1.1.1).
United States · 49 CFR 172.101 Hazardous Materials Table
| Proper shipping name (column 2) | Class or division | PG | Labels (column 6) |
|---|---|---|---|
| Antimony trichloride, liquid | 8 | II | |
| Antimony trichloride, solid | 8 | II | |
Source: 49 CFR 172.101 Hazardous Materials Table · eCFR, revision 2026-08-03. Class 8 is “Corrosive material” (49 CFR 173.2).
11 · Questions
Antimony trichloride — frequently asked questions
What is the CAS number of Antimony trichloride?
The CAS number of Antimony trichloride is 10025-91-9. Its EC number is 233-047-2.
What is the chemical formula of Antimony trichloride?
The molecular formula of Antimony trichloride is Cl3Sb and its molecular weight is 228.11 g/mol.
What does a Antimony trichloride label have to show?
Under CLP Annex VI the label for Antimony trichloride carries the pictograms Corrosion and Environment and the signal word is Danger.
Is Antimony trichloride flammable?
CLP Annex VI assigns Antimony trichloride no flammability hazard class. That is not a statement that it cannot burn: the harmonised list only records the hazards that were assessed for it.
Is Antimony trichloride a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Antimony trichloride. Annex VI is a list of agreed classifications, not a list of substances found safe, so this is an absence of a classification rather than a clean bill of health.
What is the exposure limit for Antimony trichloride?
The US occupational exposure limit reported for Antimony trichloride is 0.5 [mg/m3], as Sb (Haz-Map, Information on Hazardous Chemicals and Occupational Diseases). Limits differ by country: the EU sets its own indicative and binding values, and the figure that applies at a given workplace is the one in the local regulation.
What is the boiling point of Antimony trichloride?
The boiling point reported for Antimony trichloride is 220.3 °C (428.5 °F) (HSDB).
What is the melting point of Antimony trichloride?
The melting point reported for Antimony trichloride is 73.4 °C (164.1 °F) (HSDB).
How should Antimony trichloride be stored?
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. (Hazardous Substances Data Bank (HSDB))
Nearby
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