Substance profile
Triethyl Phosphate
Triethyl Phosphate is a liquid with a mild odor.
01 · Identification
What Triethyl Phosphate is
Triethyl Phosphate is a liquid with a mild odor. Its molecular formula is C6H15O4P and its molecular weight is 182.15 g/mol. It boils at 216 °C, melts at -56.4 °C, is soluble in water.
Under the GHS it carries the signal word Warning.
02 · Identifiers
Triethyl Phosphate identifiers and molecular data
Triethyl Phosphate CAS number and EC number
Triethyl Phosphate molecular formula and molecular weight
03 · GHS classification
Triethyl Phosphate hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Triethyl Phosphate pictograms and signal word
Triethyl Phosphate hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Acute toxicity - oral GHS chapter 3.1 | Category 4 | H302 | GHS07 |
Triethyl Phosphate hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H302 | Harmful if swallowed. |
This page lists only the codes assigned to Triethyl 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 Triethyl 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 Triethyl 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
Triethyl Phosphate precautionary statements
CLP Annex VI assigns 4 precautionary statements to Triethyl 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
Triethyl 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 | триетилов фосфат |
| Spanish español | Fosfato de trietilo |
| Czech čeština | triethyl-fosfát |
| Danish dansk | triethylphosphat |
| German Deutsch | Triethylphosphat |
| Estonian eesti | trietüülfosfaat |
| Greek ελληνικά | φωσφορικός τριαιθυλεστέρας |
| English English | triethyl phosphate |
| French français | phosphate de triéthyle |
| Croatian hrvatski | trietil-fosfat |
| Italian italiano | trietilfosfato |
| Latvian latviešu | trietilfosfāts |
| Lithuanian lietuvių | trietilfosfatas |
| Hungarian magyar | trietil-foszfát |
| Maltese Malti | fosfat tat-trietil |
| Dutch Nederlands | triëthylfosfaat |
| Polish polski | fosforan(V) trietylu ortofosforan(V) trietylu |
| Portuguese português | fosfato de trietilo |
| Romanian română | fosfat de trietil |
| Slovak slovenčina | trietyl-fosfát |
| Slovenian slovenščina | trietil fosfat |
| Finnish suomi | trietyylifosfaatti |
| Swedish svenska | trietylfosfat |
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
Triethyl Phosphate GHS label elements
Everything CLP Annex VI fixes for Triethyl Phosphate, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
Triethyl Phosphate
- Harmful if swallowed.
- Do not eat, drink or smoke when using this product.
- IF SWALLOWED:
- Call a POISON CENTER/doctor/… if you feel unwell.
- Rinse mouth.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Triethyl Phosphate in the GHS label constructor →
07 · Health hazards
Triethyl Phosphate health hazards and exposure limits
Triethyl Phosphate hazard summary
A severe skin, eye, and mucous membrane irritant; [CAMEO] The substance is harmful with a narcotic effect and, at high doses, shows certain neurotoxic properties (inhibition of cholinesterase) without indicating delayed neurotoxicity. [eChemPortal: SIDSUNEP] An irritant; Targets nerves; [MSDSonline]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
08 · Physical and chemical properties
Triethyl 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.
Triethyl Phosphate boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 215.5 °C (419.9 °F) | HSDB | |
| 215 °C (419 °F) | ICSC | ||
| 215.5 °C (419.9 °F) | at 760 mmHg | DOE PAC |
Triethyl Phosphate melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | -56.4 °C (-69.5 °F) | HSDB | |
| -56.39 °C (-69.5 °F) | CAMEO | ||
| -57 °C (-70.6 °F) | ICSC |
Triethyl Phosphate density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.068 g/cm³ | CAMEO | |
| 1.0695 g/cm³ | at 20 °C | HSDB | |
| 1.0665 g/cm³ | at 20 °C | HSDB |
Triethyl Phosphate solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Soluble in diethyl ether, benzene; very soluble in ethanol; slightly soluble in chloroform | HSDB | |
| Soluble in most organic solvents, alcohol, ether. | HSDB | ||
| Soluble, slight decomposition (NTP, 1992) | decomposes | CAMEO |
Triethyl Phosphate vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 0.15 mmHg | at 20 °C | ICSC |
| 0.39 mmHg | at 25 °C | HSDB |
Triethyl Phosphate flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 115.56 °C (240 °F) | HSDB | |
| 116 °C (240.8 °F) | ICSC |
Triethyl Phosphate autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 454.44 °C (850 °F) | HSDB | |
| 451.67 °C (845 °F) | CAMEO | ||
| 452 °C (845.6 °F) | ICSC |
Triethyl Phosphate lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | 1.2 % by volume | HSDB | |
| 1.7 % by volume | CAMEO |
Triethyl Phosphate upper explosive limit (UEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Upper explosive limit (UEL) | 10 % by volume | HSDB |
Triethyl Phosphate vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 6.28 (air = 1) | HSDB | |
| 6.3 (air = 1) | ICSC |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
Triethyl 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.
Triethyl Phosphate fire potential
Slight when exposed to heat or flame.
Source: Hazardous Substances Data Bank (HSDB)
10 · Handling and storage
Triethyl Phosphate storage and handling
Triethyl Phosphate safe storage
Separated from strong oxidants and strong bases. Well closed. Ventilation along the floor.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Triethyl Phosphate storage conditions
In general, materials which are toxic as stored or which can decompose into toxic components...should be stored in a cool, well-ventilated place, out of direct rays of the sun, away from areas of high fire hazard, and should be periodically inspected... Incompatible materials should be isolated from each other.
Source: Hazardous Substances Data Bank (HSDB)
Triethyl Phosphate incompatible materials
Can react vigorously with oxidizing materials.
Source: Hazardous Substances Data Bank (HSDB)
Triethyl Phosphate reactivity
Organophosphates, such as TRIETHYL PHOSPHATE, are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Triethyl Phosphate in the storage compatibility matrix →
11 · Questions
Triethyl Phosphate — frequently asked questions
What is the CAS number of Triethyl Phosphate?
The CAS number of Triethyl Phosphate is 78-40-0. Its EC number is 201-114-5.
What is the chemical formula of Triethyl Phosphate?
The molecular formula of Triethyl Phosphate is C6H15O4P and its molecular weight is 182.15 g/mol.
What does a Triethyl Phosphate label have to show?
Under CLP Annex VI the label for Triethyl Phosphate carries the pictogram Exclamation mark and the signal word is Warning.
Is Triethyl Phosphate flammable?
CLP Annex VI assigns Triethyl 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 115.56 °C (240 °F) (HSDB).
Is Triethyl Phosphate a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Triethyl Phosphate. 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 Triethyl Phosphate?
The boiling point reported for Triethyl Phosphate is 215.5 °C (419.9 °F) (HSDB).
What is the melting point of Triethyl Phosphate?
The melting point reported for Triethyl Phosphate is -56.4 °C (-69.5 °F) (HSDB).
How should Triethyl Phosphate be stored?
In general, materials which are toxic as stored or which can decompose into toxic components...should be stored in a cool, well-ventilated place, out of direct rays of the sun, away from areas of high fire hazard, and should be periodically inspected... Incompatible materials should be isolated from each other. (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Triethyl Phosphate
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