Substance profile
Diethylethanolamine
Diethylethanolamine is a colorless liquid with a nauseating odor.
01 · Identification
What Diethylethanolamine is
Diethylethanolamine is a colorless liquid with a nauseating odor. Its molecular formula is C6H15NO and its molecular weight is 117.19 g/mol. It boils at 163 °C, melts at -70 °C, is miscible with water.
Under the GHS it carries the signal word Danger. It is classed as flammable agents - 2nd degree.
02 · Identifiers
Diethylethanolamine identifiers and molecular data
Diethylethanolamine CAS number and EC number
Diethylethanolamine molecular formula and molecular weight
Other names for Diethylethanolamine
- 2-diethylaminoethanol
- N,N-diethylethanolamine
03 · GHS classification
Diethylethanolamine hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Diethylethanolamine pictograms and signal word
Diethylethanolamine hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Flammable liquids GHS chapter 2.6 | Category 3 | H226 | GHS02 |
| Acute toxicity - oral GHS chapter 3.1 | Category 4 | H302 | GHS07 |
| Acute toxicity - dermal GHS chapter 3.1 | Category 4 | H312 | GHS07 |
| Acute toxicity - inhalation GHS chapter 3.1 | Category 4 | H332 | GHS07 |
| 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.
Diethylethanolamine hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H226 | Flammable liquid and vapour. |
| H332 | Harmful if inhaled. |
| H312 | Harmful in contact with skin. |
| H302 | Harmful if swallowed. |
| H314 | Causes severe skin burns and eye damage. |
This page lists only the codes assigned to Diethylethanolamine. 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 Diethylethanolamine
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 Diethylethanolamine 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
Diethylethanolamine precautionary statements
CLP Annex VI assigns 17 precautionary statements to Diethylethanolamine. 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
Diethylethanolamine 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 | 2-диетиламиноетанол N , N -диетилетаноламин |
| Spanish español | 2-Dietilaminoetanol N , N -dietiletanolamina |
| Czech čeština | 2-(diethylamino)ethan-1-ol N, N -diethylethanolamin |
| Danish dansk | 2-diethylaminoethanol N, N- diethylethanolamin |
| German Deutsch | 2-Diethylaminoethanol N , N -diethylethanolamin |
| Estonian eesti | 2-dietüülaminoetanool N , N -dietüületanoolamiin |
| Greek ελληνικά | 2-διαιθυλαμινοαιθανόλη N , N -διαιθυλαιθανολαμίνη |
| English English | 2-diethylaminoethanol N , N -diethylethanolamine |
| French français | 2-diéthylaminoéthanol N , N -diéthyléthanolamine |
| Croatian hrvatski | 2-dietilaminoetanol N , N -dietiletanolamin |
| Italian italiano | 2- dietilaminoetanolo N , N - dietilaminoetanolo |
| Latvian latviešu | 2-dietilaminoetanols N , N -dietiletanolamīns |
| Lithuanian lietuvių | 2-dietilaminoetanolis N , N -dietiletanolaminas |
| Hungarian magyar | 2-dietiletanolamin N , N -dietiletanolamin |
| Maltese Malti | 2-dietilamminoetanol N , N -dietiletanolammina |
| Dutch Nederlands | 2-diëthylaminoethanol N , N -diëthylethanolamine |
| Polish polski | 2-(dietyloamino)etanol N , N -dietyloetanoloamina |
| Portuguese português | 2-dietilaminoetanol N , N -dietiletanolamina |
| Romanian română | 2-dietilaminoetanol N , N -dietiletanolamină |
| Slovak slovenčina | 2-(dietylamino)etanol N , N -dietyletanolamín |
| Slovenian slovenščina | 2-dietilaminoetanol N , N -dietiletanolamin |
| Finnish suomi | 2-dietyyliaminoetanoli N, N -dietyylietanoliamiini |
| Swedish svenska | 2-dietylaminoetanol N , N -dietyletanolamin |
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
Diethylethanolamine GHS label elements
Everything CLP Annex VI fixes for Diethylethanolamine, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Diethylethanolamine
- Flammable liquid and vapour.
- Harmful if inhaled.
- Harmful in contact with skin.
- Harmful if swallowed.
- Causes severe skin burns and eye damage.
- Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
- Keep container tightly closed.
- Use explosion-proof [electrical/ventilating/lighting/…] equipment.
- Use only non-sparking tools.
- Do not breathe dust/fume/gas/mist/vapours/spray.
- Do not eat, drink or smoke when using this product.
- Use only outdoors or in a well-ventilated area.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF SWALLOWED:
- IF ON SKIN:
- IF INHALED:
- Immediately call a POISON CENTER/doctor/…
- Call a POISON CENTER/doctor/… if you feel unwell.
- Rinse mouth.
- Do NOT induce vomiting.
- Wash with plenty of water/…
- Store in a well-ventilated place.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Diethylethanolamine in the GHS label constructor →
07 · Health hazards
Diethylethanolamine health hazards and exposure limits
Diethylethanolamine hazard summary
Corrosive to skin; [Quick CPC] Possible cause of asthma; [Reference #1] Causes upper and lower respiratory tract irritation; Rats show signs of upper respiratory irritation with exposures above 120 mg/m3; [NIOSH Criteria Document] May cause allergic contact dermatitis; [CAMEO] Corrosive to the eyes; [ICSC]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Diethylethanolamine occupational exposure limits
| Limit | Value | Source |
|---|---|---|
| PEL | 10.0 [ppm] | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
| PEL | 10 ppm (50 mg/m³) | Occupational Safety and Health Administration (OSHA) |
| PEL | TWA 10 ppm (50 mg/m3) [skin] | The National Institute for Occupational Safety and Health (NIOSH) |
| REL | 10 ppm (50 mg/m³) | Occupational Safety and Health Administration (OSHA) |
| REL | TWA 10 ppm (50 mg/m3) [skin] | The National Institute for Occupational Safety and Health (NIOSH) |
| IDLH | 100 ppm (NIOSH, 2024) | CAMEO Chemicals |
| IDLH | 100.0 [ppm] | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
| IDLH | 100 ppm | 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
Diethylethanolamine 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.
Diethylethanolamine boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 163 °C (325.4 °F) | at 760 mmHg | HSDB |
| 162.78 °C (325 °F) | NIOSH | ||
| 162.78 °C (325 °F) | at 760 mmHg | CAMEO |
Diethylethanolamine melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | -70 °C (-94 °F) | HSDB |
Diethylethanolamine density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 0.89 g/cm³ | NIOSH | |
| 0.8921 g/cm³ | at 20 °C | HSDB | |
| 0.8921 g/cm³ | at 25 °C | CAMEO |
Diethylethanolamine solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | SOL IN ALL PROPORTIONS IN WATER; SOL IN ALC, ETHER, ACETONE, BENZENE, PETROLEUM ETHER | HSDB | |
| Miscible | NIOSH | ||
| Very soluble (NTP, 1992) | CAMEO |
Diethylethanolamine vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 1 mmHg | NIOSH | |
| 21 mmHg | at 20 °C | HSDB |
Diethylethanolamine flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 60 °C (140 °F) | HSDB | |
| 51.67 °C (125 °F) | HSDB | ||
| 52.22 °C (126 °F) | NIOSH |
Diethylethanolamine autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 320 °C (608 °F) | HSDB | |
| 250 °C (482 °F) | ICSC |
Diethylethanolamine lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | 6.7 % by volume | HSDB |
Diethylethanolamine upper explosive limit (UEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Upper explosive limit (UEL) | 11.7 % by volume | HSDB |
Diethylethanolamine vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 4.03 (air = 1) | HSDB |
Diethylethanolamine odor threshold
| Property | Value | Conditions | Source |
|---|---|---|---|
| Odor threshold | Absolute perception limit in air = 0.011 ppm. 100% recognition in air = 0.04 ppm. | HSDB | |
| Odor Threshold Low: 0.01 [ppm] | Haz-Map | ||
| Detection odor threshold from AIHA (mean = 0.011 ppm) | Haz-Map |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
Diethylethanolamine 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.
Diethylethanolamine fire potential
Flammable; moderate fire hazard
Source: Hazardous Substances Data Bank (HSDB)
10 · Handling and storage
Diethylethanolamine storage and handling
Diethylethanolamine safe storage
Fireproof. Separated from strong oxidants and strong acids. Cool. Dry.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Diethylethanolamine incompatible materials
Strong oxidizers, strong acids.
Source: Hazardous Substances Data Bank (HSDB)
Diethylethanolamine reactivity
2-DIETHYLAMINOETHANOL is an organic compound with both amine and alcohol substituents. Amines are chemical bases. They neutralize acids to form salts plus water. These acid-base reactions are exothermic. The amount of heat that is evolved per mole of amine in a neutralization is largely independent of the strength of the amine as a base. Amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated by amines in combination with strong reducing agents, such as hydrides. This compound can react with strong oxidizers and acids. (NTP, 1992)
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Diethylethanolamine in the storage compatibility matrix →
11 · Questions
Diethylethanolamine — frequently asked questions
What is the CAS number of Diethylethanolamine?
The CAS number of Diethylethanolamine is 100-37-8. Its EC number is 202-845-2.
What is the chemical formula of Diethylethanolamine?
The molecular formula of Diethylethanolamine is C6H15NO and its molecular weight is 117.19 g/mol.
What does a Diethylethanolamine label have to show?
Under CLP Annex VI the label for Diethylethanolamine carries the pictograms Flame, Corrosion, Exclamation mark and Environment and the signal word is Danger.
Is Diethylethanolamine flammable?
Yes. CLP Annex VI assigns Diethylethanolamine H226 — flammable liquid and vapour. The flash point reported for it is 60 °C (140 °F) (HSDB).
Is Diethylethanolamine a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Diethylethanolamine. 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 Diethylethanolamine?
The US occupational exposure limit reported for Diethylethanolamine is 10.0 [ppm] (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 Diethylethanolamine?
The boiling point reported for Diethylethanolamine is 163 °C (325.4 °F), at 760 mmHg (HSDB).
What is the melting point of Diethylethanolamine?
The melting point reported for Diethylethanolamine is -70 °C (-94 °F) (HSDB).
How should Diethylethanolamine be stored?
CLP Annex VI assigns Diethylethanolamine the storage statement P403.
Nearby
Substances next to Diethylethanolamine
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