Substance profile
Titanium Tetrachloride
Titanium Tetrachloride is a colorless liquid with a penetrating acid odor.
01 · Identification
What Titanium Tetrachloride is
Titanium Tetrachloride is a colorless liquid with a penetrating acid odor. Its molecular formula is Cl4Ti and its molecular weight is 189.7 g/mol. It boils at 136 °C, melts at -24.1 °C.
Under the GHS it carries the signal word Danger. It is classed as hazardous Air Pollutants (HAPs).
02 · Identifiers
Titanium Tetrachloride identifiers and molecular data
Titanium Tetrachloride CAS number and EC number
Titanium Tetrachloride molecular formula and molecular weight
03 · GHS classification
Titanium Tetrachloride hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Titanium Tetrachloride pictograms and signal word
Titanium Tetrachloride 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 |
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.
Titanium Tetrachloride hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H314 | Causes severe skin burns and eye damage. |
Titanium Tetrachloride supplemental EU statements (EUH)
| Code | Statement |
|---|---|
| EUH014 | Reacts violently with water. |
This page lists only the codes assigned to Titanium Tetrachloride. 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 Titanium Tetrachloride
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 Titanium Tetrachloride 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
Titanium Tetrachloride precautionary statements
CLP Annex VI assigns 5 precautionary statements to Titanium Tetrachloride. 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.
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
Titanium Tetrachloride 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 | титанов тетрахлорид |
| Spanish español | Tetracloruro de titanio |
| Czech čeština | chlorid titaničitý |
| Danish dansk | titantetrachlorid |
| German Deutsch | Titantetrachlorid Titan(IV)-chlorid |
| Estonian eesti | titaantetrakloriid |
| Greek ελληνικά | τετραχλωριούχο τιτάνιο |
| English English | titanium tetrachloride |
| French français | tétrachlorure de titane |
| Croatian hrvatski | titanijev tetraklorid |
| Italian italiano | tetracloruro di titanio |
| Latvian latviešu | titāna tetrahlorīds |
| Lithuanian lietuvių | titano tetrachloridas |
| Hungarian magyar | titán-tetraklorid |
| Maltese Malti | tetraklorur tat-titanju |
| Dutch Nederlands | titaantetrachloride |
| Polish polski | chlorek tytanu(IV) tetrachlorek tytanu |
| Portuguese português | tetracloreto de titânio |
| Romanian română | tetraclorură de titan |
| Slovak slovenčina | chlorid titaničitý |
| Slovenian slovenščina | titanov tetraklorid |
| Finnish suomi | titaanitetrakloridi |
| Swedish svenska | titantetraklorid |
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
Titanium Tetrachloride GHS label elements
Everything CLP Annex VI fixes for Titanium Tetrachloride, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Titanium Tetrachloride
- Causes severe skin burns and eye damage.
- Reacts violently with water.
- Do not breathe dust/fume/gas/mist/vapours/spray.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF SWALLOWED:
- Immediately call a POISON CENTER/doctor/…
- Do NOT induce vomiting.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Titanium Tetrachloride in the GHS label constructor →
07 · Health hazards
Titanium Tetrachloride health hazards and exposure limits
Titanium Tetrachloride hazard summary
Titanium tetrachloride is a colorless to pale yellow liquid that has fumes with a strong odor. If it comes in contact with water, it rapidly forms hydrochloric acid, as well as titanium compounds. Titanium tetrachloride is not found naturally in the environment and is made from minerals that contain titanium. It is used to make titanium metal and other titanium-containing compounds, such as titanium dioxide, which is used as a white pigment in paints and other products and to produce other chemicals.
Source: Agency for Toxic Substances and Disease Registry (ATSDR)
08 · Physical and chemical properties
Titanium Tetrachloride 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.
Titanium Tetrachloride boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 136.4 °C (277.5 °F) | HSDB | |
| 136.39 °C (277.5 °F) | at 760 mmHg | CAMEO |
Titanium Tetrachloride melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | -24.1 °C (-11.4 °F) | HSDB | |
| -24.11 °C (-11.4 °F) | CAMEO |
Titanium Tetrachloride density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.726 g/cm³ | HSDB | |
| 1.7 g/cm³ | ICSC |
Titanium Tetrachloride solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Sol in cold water, alcohol | HSDB | |
| Sol in dilute hydrochloric acid | HSDB | ||
| Sol in most organic solvents; decomposed by water | decomposes | HSDB |
Titanium Tetrachloride vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 10 mmHg | at 21.3 °C | CAMEO |
| 9.7508 mmHg | at 21.3 °C | ICSC | |
| 9.956 mmHg | at 20 °C | HSDB |
Titanium Tetrachloride lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | During reduction of titanium tetrachloride to titanium metal with potassium, explosion occurred. Prior to explosion, system was heated to 90 °C. | HSDB |
Titanium Tetrachloride vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 6.5 (air = 1) | ICSC |
Titanium Tetrachloride critical temperature and pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Critical temperature and pressure | 370 °C (698 °F) | HSDB |
Titanium Tetrachloride corrosivity
| Property | Value | Conditions | Source |
|---|---|---|---|
| Corrosivity | Corrosive | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
Titanium Tetrachloride storage and handling
Titanium Tetrachloride safe storage
Separated from food and feedstuffs. Dry. Well closed.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Titanium Tetrachloride storage conditions
KEEP TIGHTLY CLOSED.
Source: Hazardous Substances Data Bank (HSDB)
Titanium Tetrachloride incompatible materials
REACTS STRONGLY WITH WATER TO RELEASE HYDROCHLORIC ACID & HEAT.
Source: Hazardous Substances Data Bank (HSDB)
Titanium Tetrachloride reactivity
TITANIUM TETRACHLORIDE acts as an acid in aqueous solution. During the reduction of TITANIUM TETRACHLORIDE to titanium metal with potassium, an explosion occurred. The system had been heated to 90 °C [Walter and Mandell 1967]. Addition directly to tetrahydrofuran caused a violent exothermic reaction [Inorg. Syn., 1982, 21, 135]. Ethylene can polymerize at low pressure if catalyzed by titanium halides. (Sundaram, K. M, M. M. Shreehan, E. F. Olszewski. "Ethylene." Kirk-Othmer Encyclopedia of Chemical Technology. John Wiley & Sons, Inc. 2001.)
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Titanium Tetrachloride in the storage compatibility matrix →
10 · Transport
Titanium Tetrachloride 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.
Titanium Tetrachloride under UN 1838 — shipping name, class and packing group
Europe · ADR 2025, Table A
| Proper shipping name (3.1.2) | Class | Classification code | PG | Labels (column 5) |
|---|---|---|---|---|
| TITANIUM TETRACHLORIDE | 6.1 | TC3 | I | |
Source: ADR 2025, Table A of Chapter 3.2 · ECE/TRANS/352 Vol. I (UNECE). Class 6.1 is “Toxic 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) |
|---|---|---|---|
| Titanium tetrachloride | 6.1 | I | |
Source: 49 CFR 172.101 Hazardous Materials Table · eCFR, revision 2026-08-03. Class 6.1 is “Poisonous materials” (49 CFR 173.2).
11 · Questions
Titanium Tetrachloride — frequently asked questions
What is the CAS number of Titanium Tetrachloride?
The CAS number of Titanium Tetrachloride is 7550-45-0. Its EC number is 231-441-9.
What is the chemical formula of Titanium Tetrachloride?
The molecular formula of Titanium Tetrachloride is Cl4Ti and its molecular weight is 189.7 g/mol.
What does a Titanium Tetrachloride label have to show?
Under CLP Annex VI the label for Titanium Tetrachloride carries the pictogram Corrosion and the signal word is Danger.
Is Titanium Tetrachloride flammable?
CLP Annex VI assigns Titanium Tetrachloride 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 Titanium Tetrachloride a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Titanium Tetrachloride. 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 boiling point of Titanium Tetrachloride?
The boiling point reported for Titanium Tetrachloride is 136.4 °C (277.5 °F) (HSDB).
What is the melting point of Titanium Tetrachloride?
The melting point reported for Titanium Tetrachloride is -24.1 °C (-11.4 °F) (HSDB).
How should Titanium Tetrachloride be stored?
KEEP TIGHTLY CLOSED. (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Titanium Tetrachloride
Keep going: substances starting with T, or search the whole database by name, CAS number, pictogram or signal word.