Substance profile
Tributyl Phosphate
Tributyl Phosphate is a colorless to pale-yellow liquid and is odorless.
01 · Identification
What Tributyl Phosphate is
Tributyl Phosphate is a colorless to pale-yellow liquid and is odorless. Its molecular formula is C12H27O4P and its molecular weight is 266.31 g/mol. It boils at 289 °C, melts at -80 °C.
Under the GHS it carries the signal word Warning.
02 · Identifiers
Tributyl Phosphate identifiers and molecular data
Tributyl Phosphate CAS number and EC number
Tributyl Phosphate molecular formula and molecular weight
03 · GHS classification
Tributyl Phosphate hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Tributyl Phosphate pictograms and signal word
Tributyl Phosphate hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Acute toxicity - oral GHS chapter 3.1 | Category 4 | H302 | GHS07 |
| Skin corrosion/irritation GHS chapter 3.2 | Category 2 | H315 | GHS07 |
| Carcinogenicity GHS chapter 3.6 | Category 2 | H351 | GHS08 |
Tributyl Phosphate hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H351 | Suspected of causing cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H302 | Harmful if swallowed. |
| H315 | Causes skin irritation. |
This page lists only the codes assigned to Tributyl Phosphate. 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 Tributyl Phosphate
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 Tributyl Phosphate 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
Tributyl Phosphate precautionary statements
CLP Annex VI assigns 12 precautionary statements to Tributyl Phosphate. 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
Tributyl Phosphate 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 | трибутилов фосфат |
| Spanish español | Fosfato de tributilo |
| Czech čeština | tributyl-fosfát |
| Danish dansk | tributylphosphat |
| German Deutsch | Tributylphosphat |
| Estonian eesti | tributüülfosfaat |
| Greek ελληνικά | φωσφορικός τριβουτυλεστέρας |
| English English | tributyl phosphate |
| French français | phosphate de tributyle |
| Croatian hrvatski | tributil-fosfat |
| Italian italiano | tributilfosfato |
| Latvian latviešu | tributilfosfāts |
| Lithuanian lietuvių | tributilfosfatas |
| Hungarian magyar | tributil-foszfát |
| Maltese Malti | fosfat tat-tributil |
| Dutch Nederlands | tributylfosfaat |
| Polish polski | fosforan(V) tributylu ortofosforan(V) tributylu |
| Portuguese português | fosfato de tributilo |
| Romanian română | fosfat de tributil |
| Slovak slovenčina | tributyl-fosfát |
| Slovenian slovenščina | tributil fosfat |
| Finnish suomi | tributyylifosfaatti |
| Swedish svenska | tributylfosfat |
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
Tributyl Phosphate GHS label elements
Everything CLP Annex VI fixes for Tributyl Phosphate, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
Tributyl Phosphate
- Suspected of causing cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- Harmful if swallowed.
- Causes skin irritation.
- Obtain special instructions before use.
- Wash … thoroughly after handling.
- Do not eat, drink or smoke when using this product.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF SWALLOWED:
- IF ON SKIN:
- IF exposed or concerned:
- Call a POISON CENTER/doctor/… if you feel unwell.
- Get medical advice/attention.
- Rinse mouth.
- If skin irritation occurs:
- Wash with plenty of water/…
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Tributyl Phosphate in the GHS label constructor →
07 · Health hazards
Tributyl Phosphate health hazards and exposure limits
Tributyl Phosphate occupational exposure limits
| Limit | Value | Source |
|---|---|---|
| PEL | 5.0 [mg/m3] | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
| PEL | 5 mg/m³ | Occupational Safety and Health Administration (OSHA) |
| PEL | TWA 5 mg/m3 See Appendix G | The National Institute for Occupational Safety and Health (NIOSH) |
| REL | 2 ppm (2.5 mg/m³) | Occupational Safety and Health Administration (OSHA) |
| REL | TWA 0.2 ppm (2.5 mg/m3) | The National Institute for Occupational Safety and Health (NIOSH) |
| IDLH | 30 ppm (NIOSH, 2024) | CAMEO Chemicals |
| IDLH | 327.0 [mg/m3] | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
| IDLH | Excerpts from Documentation for IDLHs: Human data: Nausea and headache have been reported in workers exposed to 15 mg/m3 (1.4 ppm) [Mastromatteo 1964]. [NIOSH] | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
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
Tributyl Phosphate 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.
Tributyl Phosphate boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 288.89 °C (552 °F) | at 760 mmHg | CAMEO |
| 288.89 °C (552 °F) | OSHA | ||
| 289 °C (552.2 °F) | at 760 mmHg | DOE PAC |
Tributyl Phosphate melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | -80 °C (-112 °F) | NIOSH | |
| -80 °C (-112 °F) | below this value | HSDB |
Tributyl Phosphate density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 0.9814 g/cm³ | HSDB | |
| 0.98 g/cm³ | NIOSH | ||
| 0.978 g/cm³ | at 20 °C | HSDB |
Tributyl Phosphate solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Soluble in diethyl ether, benzene, carbon disulfide; miscible with ethanol | HSDB | |
| Miscible with most solvents and diluents | HSDB | ||
| In water, 280 mg/L at 25 °C | at 25 °C | HSDB |
Tributyl Phosphate vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 13.7 mmHg | at 20 °C | CAMEO |
| 0.0011 mmHg | at 25 °C | HSDB | |
| 0.004 mmHg | at 25 °C | NIOSH |
Tributyl Phosphate flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 146 °C (294.8 °F) | open cup | HSDB |
| 146.11 °C (295 °F) | HSDB | ||
| 145 °C (293 °F) | HSDB |
Tributyl Phosphate autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 410 °C (770 °F) | HSDB | |
| 482 °C (899.6 °F) | above this value | ICSC |
Tributyl Phosphate lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | Class IIIB Combustible Liquid: Fl.P. at or above 200 °F. | NIOSH |
Tributyl Phosphate vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 9.2 (air = 1) | HSDB |
Tributyl Phosphate odor threshold
| Property | Value | Conditions | Source |
|---|---|---|---|
| Odor threshold | Odor perception threshold 0.014 mg/L. | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
Tributyl Phosphate fire and explosion behaviour
These are descriptions rather than measured values, so they are kept out of the table above and quoted here with the source that reported them.
Tributyl Phosphate fire potential
Combustible when exposed to heat or flame.
Source: Hazardous Substances Data Bank (HSDB)
10 · Handling and storage
Tributyl Phosphate storage and handling
Tributyl Phosphate safe storage
Store in an area without drain or sewer access. Separated from bases and strong oxidants.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Tributyl Phosphate storage conditions
Conditions for safe storage, including any incompatibilities: Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage.
Source: Hazardous Substances Data Bank (HSDB)
Tributyl Phosphate incompatible materials
Incompatible materials: Strong oxidizing agents, Strong bases
Source: Hazardous Substances Data Bank (HSDB)
Tributyl Phosphate reactivity
TRIBUTYL PHOSPHATE is incompatible with strong oxidizing agents and strong bases. Attacks some forms of plastics and rubber (NTP, 1992).
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Tributyl Phosphate in the storage compatibility matrix →
11 · Questions
Tributyl Phosphate — frequently asked questions
What is the CAS number of Tributyl Phosphate?
The CAS number of Tributyl Phosphate is 126-73-8. Its EC number is 204-800-2.
What is the chemical formula of Tributyl Phosphate?
The molecular formula of Tributyl Phosphate is C12H27O4P and its molecular weight is 266.31 g/mol.
What does a Tributyl Phosphate label have to show?
Under CLP Annex VI the label for Tributyl Phosphate carries the pictograms Health hazard and Exclamation mark and the signal word is Warning.
Is Tributyl Phosphate flammable?
CLP Annex VI assigns Tributyl Phosphate 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. The flash point reported for it is 146 °C (294.8 °F), open cup (HSDB).
Is Tributyl Phosphate a carcinogen?
CLP Annex VI assigns Tributyl Phosphate H351 — suspected of causing cancer. That is category 2: the evidence points that way but is not conclusive.
What is the exposure limit for Tributyl Phosphate?
The US occupational exposure limit reported for Tributyl Phosphate is 5.0 [mg/m3] (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 Tributyl Phosphate?
The boiling point reported for Tributyl Phosphate is 288.89 °C (552 °F), at 760 mmHg (CAMEO).
What is the melting point of Tributyl Phosphate?
The melting point reported for Tributyl Phosphate is -80 °C (-112 °F) (NIOSH).
How should Tributyl Phosphate be stored?
Conditions for safe storage, including any incompatibilities: Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage. (Hazardous Substances Data Bank (HSDB))
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