Substance profile
Demeton
Demeton is an amber, oily liquid with a technical grade demeton has a pronounced mercaptan-like odor.
01 · Identification
What Demeton is
Demeton is an amber, oily liquid with a technical grade demeton has a pronounced mercaptan-like odor. It melts at -25 °C.
Under the GHS it carries the signal word Danger.
02 · Identifiers
Demeton identifiers and molecular data
Demeton CAS number and EC number
03 · GHS classification
Demeton hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Demeton pictograms and signal word
Demeton hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Acute toxicity - oral GHS chapter 3.1 | Category 1 or 2 | H300 | GHS06 |
| Acute toxicity - dermal GHS chapter 3.1 | Category 1 or 2 | H310 | GHS06 |
| Hazardous to the aquatic environment - acute GHS chapter 4.1 | Category 1 | H400 | 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.
Demeton hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H310 | Fatal in contact with skin. |
| H300 | Fatal if swallowed. |
| H400 | Very toxic to aquatic life. |
This page lists only the codes assigned to Demeton. 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 Demeton
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 Demeton 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
Demeton precautionary statements
CLP Annex VI assigns 10 precautionary statements to Demeton. 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
Demeton 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 | деметон |
| Spanish español | Demetón |
| Czech čeština | demeton |
| Danish dansk | demeton |
| German Deutsch | Demeton |
| Estonian eesti | demetoon |
| Greek ελληνικά | δεμετόνη |
| English English | demeton |
| French français | déméton |
| Croatian hrvatski | demeton |
| Italian italiano | demeton |
| Latvian latviešu | demetons |
| Lithuanian lietuvių | demetonas |
| Hungarian magyar | demeton |
| Maltese Malti | demeton |
| Dutch Nederlands | demeton |
| Polish polski | demeton |
| Portuguese português | demetão |
| Romanian română | demeton |
| Slovak slovenčina | demetón |
| Slovenian slovenščina | demeton |
| Finnish suomi | demetoni |
| Swedish svenska | demeton |
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
Demeton GHS label elements
Everything CLP Annex VI fixes for Demeton, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Demeton
- Fatal in contact with skin.
- Fatal if swallowed.
- Very toxic to aquatic life.
- Do not eat, drink or smoke when using this product.
- Avoid release to the environment.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF SWALLOWED:
- IF ON SKIN:
- Immediately call a POISON CENTER/doctor/…
- Rinse mouth.
- Wash with plenty of water/…
- Collect spillage.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Demeton in the GHS label constructor →
07 · Health hazards
Demeton health hazards and exposure limits
Demeton hazard summary
Its toxicity and potency are similar to that of parathion. [ACGIH] A cholinesterase inhibitor that may cause cardiac disorders, convulsions, cyanosis, and respiratory failure; Can be absorbed through skin; [ICSC] The average of two baseline respective cholinesterase activity determinations three days apart, with no exposures to enzyme inhibiting pesticides for at least 30 days, is recommended for each worker prior to exposure to cholinesterase inhibitors because of large inter-individual differences in published baseline values. To be established at least once a year. Removal from workplace exposures is recommended until the cholinesterase activity returns to within 20% of baseline. [TLVs and BEIs]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Demeton occupational exposure limits
| Limit | Value | Source |
|---|---|---|
| PEL | 0.1 [mg/m3] | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
| PEL | 0.1 mg/m³ | Occupational Safety and Health Administration (OSHA) |
| PEL | TWA 0.1 mg/m3 [skin] | The National Institute for Occupational Safety and Health (NIOSH) |
| REL | 0.1 mg/m³ | Occupational Safety and Health Administration (OSHA) |
| REL | TWA 0.1 mg/m3 [skin] | The National Institute for Occupational Safety and Health (NIOSH) |
| IDLH | 10 mg/m3 (NIOSH, 2024) | CAMEO Chemicals |
| IDLH | 10.0 [mg/m3] | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
| IDLH | 10 mg/cu m | 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
Demeton 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.
Demeton boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 134 °C (273.2 °F) | at 2 mmHg (reduced pressure) | HSDB |
| 133.89 °C (273 °F) | at 2 mmHg (reduced pressure) | CAMEO | |
| 134 °C (273.2 °F) | at 2.02517 mmHg (reduced pressure) | ICSC |
Demeton melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | -25 °C (-13 °F) | CAMEO | |
| -25 °C (-13 °F) | below this value | NIOSH |
Demeton density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.12 g/cm³ | NIOSH | |
| 1.183 g/cm³ | CAMEO | ||
| 1.1183 g/cm³ | at 20 °C | HSDB |
Demeton solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Sol in propylene glycol, ethanol, toluene and similar hydrocarbons | HSDB | |
| 0.01% | NIOSH | ||
| In water, 6.66X10+2 mg/L at 25 °C | at 25 °C | HSDB |
Demeton vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 0.0003 mmHg | NIOSH | |
| 0.00026 mmHg | CAMEO | ||
| 0.00034 mmHg | at 20 °C | HSDB |
Demeton flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 45 °C (113 °F) | HSDB |
Demeton autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 463.89 °C (867 °F) | HSDB | |
| 464 °C (867.2 °F) | ICSC |
Demeton lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | 1 % by volume | CAMEO | |
| 1.0%-5.3% | HSDB |
Demeton upper explosive limit (UEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Upper explosive limit (UEL) | 5.3 % by volume | CAMEO |
Demeton vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | Heavier than air (EPA, 1998) (Relative to Air) | CAMEO | |
| heavier than air | OSHA |
Demeton corrosivity
| Property | Value | Conditions | Source |
|---|---|---|---|
| Corrosivity | Noncorrosive | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
Demeton storage and handling
Demeton safe storage
Separated from strong oxidants and food and feedstuffs. Keep in a well-ventilated room. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Demeton incompatible materials
Strong oxidizers, alkalis, water.
Source: Hazardous Substances Data Bank (HSDB)
Demeton reactivity
DEMETON may release sulfur oxides and phosphoric acid. Solvent carrier vapors may travel on ground to ignition source. Avoid strong oxidizers. Avoid mixtures with water or polar solvents, in which sulfur is lost to oxygen, air and light, which cause hydrolysis, alkaline mixtures and oxidizing agents. [EPA, 1998].
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Demeton in the storage compatibility matrix →
10 · Questions
Demeton — frequently asked questions
What is the CAS number of Demeton?
The CAS number of Demeton is 8065-48-3.
What does a Demeton label have to show?
Under CLP Annex VI the label for Demeton carries the pictograms Skull and crossbones and Environment and the signal word is Danger.
Is Demeton flammable?
CLP Annex VI assigns Demeton 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 45 °C (113 °F) (HSDB).
Is Demeton a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Demeton. 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 Demeton?
The US occupational exposure limit reported for Demeton is 0.1 [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 Demeton?
The boiling point reported for Demeton is 134 °C (273.2 °F), at 2 mmHg (reduced pressure) (HSDB).
What is the melting point of Demeton?
The melting point reported for Demeton is -25 °C (-13 °F) (CAMEO).
Nearby
Substances next to Demeton
Keep going: substances starting with D, or search the whole database by name, CAS number, pictogram or signal word.