Substance profile
Fonofos
Fonofos is a light yellow liquid with an aromatic odor.
01 · Identification
What Fonofos is
Fonofos is a light yellow liquid with an aromatic odor. Its molecular formula is C10H15OPS2 and its molecular weight is 246.3 g/mol. It boils at 380 °C, melts at 30 °C, is miscible with water.
Under the GHS it carries the signal word Danger.
02 · Identifiers
Fonofos identifiers and molecular data
Fonofos CAS number and EC number
Fonofos molecular formula and molecular weight
Other names for Fonofos
- fonofos (ISO)
- O-ethyl phenyl ethylphosphonodithioate
03 · GHS classification
Fonofos hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Fonofos pictograms and signal word
Fonofos 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 |
| Hazardous to the aquatic environment - chronic GHS chapter 4.1 | Category 1 | H410 | 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.
Fonofos hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H310 | Fatal in contact with skin. |
| H300 | Fatal if swallowed. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
This page lists only the codes assigned to Fonofos. 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 Fonofos
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 Fonofos 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
Fonofos precautionary statements
CLP Annex VI assigns 10 precautionary statements to Fonofos. 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
Fonofos 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 | фонофос (ISO) O -етилов фенилов етилфосфонодитиоат |
| Spanish español | Fonofós (ISO) etilfosfonoditioato de O -etilo y fenilo |
| Czech čeština | fonofos (ISO) O -ethyl- S -fenyl-ethylfosfonodithioát |
| Danish dansk | fonofos (ISO) O- ethylphenylethyldithiophosphonat |
| German Deutsch | Fonofos (ISO) O -Ethyl -S- phenylethyl- phosphonodithioat |
| Estonian eesti | fonofoss (ISO) O -etüülfenüületüülfosfonoditioaat |
| Greek ελληνικά | fonofos (φονοφός) (ISO) αιθυλοδιθειοφωσφονικό O -αιθύλιο φαινύλιο |
| English English | fonofos (ISO) O -ethyl phenyl ethylphosphonodithioate |
| French français | fonofos (ISO) éthylphosphorodithioate de O -éthyle et de phényle |
| Croatian hrvatski | fonofos (ISO) O -etil-fenil-etil-fosfonoditioat |
| Italian italiano | fonofos (ISO) etilditiofosfonato di O-etile e fenile |
| Latvian latviešu | fonofoss (ISO) O -etilfeniletilfosfonditioāts |
| Lithuanian lietuvių | fonofosas (ISO) O -etilfeniletilditiofosfonatas |
| Hungarian magyar | fonofosz (ISO) O -etil-feniletil-ditiofoszfonát |
| Maltese Malti | fonofos (ISO) etilfosfonoditijoat tal-fenil ta’ O -etil |
| Dutch Nederlands | fonofos (ISO) O -ethylfenylethyldithiofosfonaat |
| Polish polski | fonofos (ISO) etyloditiofosfonian O -etylu- S -fenylu |
| Portuguese português | fonofos (ISO) etilditiofosfonato de O -etilo e de fenilo |
| Romanian română | fonofos (ISO) etilditiofosfonat de O -etil și de fenil |
| Slovak slovenčina | fonofos (ISO) O -etyl- S -fenyl-etylfosfonoditioát |
| Slovenian slovenščina | fonofos (ISO) O -etil fenil etilfosfonoditioat |
| Finnish suomi | fonofossi (ISO) O -etyylifenyylietyylifosfonoditioaatti |
| Swedish svenska | fonofos (ISO) O -etylfenyletylfosfonoditioat |
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
Fonofos GHS label elements
Everything CLP Annex VI fixes for Fonofos, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Fonofos
- Fatal in contact with skin.
- Fatal if swallowed.
- Very toxic to aquatic life.
- Very toxic to aquatic life with long lasting effects.
- 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 Fonofos in the GHS label constructor →
07 · Health hazards
Fonofos health hazards and exposure limits
Fonofos hazard summary
Classified as highly toxic, the more concentrated formulations of fonofos may be used only by certified applicators. It persists in soil with a half-life of about 40 days. [EXTOXNET] 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
Fonofos carcinogenicity classification
Cancer Classification: Group E Evidence of Non-carcinogenicity for Humans
Source: Hazardous Substances Data Bank (HSDB)
An IARC group and a CLP classification answer different questions. IARC judges whether the evidence for cancer in humans is strong enough; CLP Annex VI is the legally binding EU classification. A substance can carry one and not the other.
Fonofos occupational exposure limits
| Limit | Value | Source |
|---|---|---|
| PEL | none See Appendix G | 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 | N.D. | The National Institute for Occupational Safety and Health (NIOSH) |
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
Fonofos 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.
Fonofos boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 380 °C (716 °F) | at 760 mmHg | DOE PAC |
| 130 °C (266 °F) | at 0.1 mmHg (reduced pressure) | HSDB |
Fonofos melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 30 °C (86 °F) | ICSC |
Fonofos density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.15 g/cm³ | NIOSH | |
| 1.16 g/cm³ | at 25 °C | HSDB |
Fonofos solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Miscible with ... acetone, ethanol, kerosene, methyl isobutyl ketone, xylene. | HSDB | |
| Miscible with organic solvents. | HSDB | ||
| In water, 15.7 mg/l @ 20 °C | at 20 °C | HSDB |
Fonofos vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 337500 mmHg | at 25 °C | HSDB |
| 0.0002 mmHg | at 25 °C | NIOSH | |
| 0.00021 mmHg | at 25 °C | CAMEO |
Fonofos flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 94 °C (201.2 °F) | ICSC | |
| 93.33 °C (200 °F) | above this value | HSDB | |
| 93.89 °C (201 °F) | above this value | NIOSH |
Fonofos lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | Class IIIB Combustible Liquid: Fl.P. at or above 200 °F. | NIOSH |
Fonofos corrosivity
| Property | Value | Conditions | Source |
|---|---|---|---|
| Corrosivity | Corrosive to steel | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
Fonofos 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.
Fonofos fire potential
Liquid formulations may be flammable, if a flammable solvent is used. The solid may burn but is difficult to ignite.
Source: Hazardous Substances Data Bank (HSDB)
10 · Handling and storage
Fonofos storage and handling
Fonofos safe storage
Separated from food and feedstuffs. Keep in a well-ventilated room.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Fonofos storage conditions
Separated from food and feedstuffs. Keep in a well-ventilated room.
Source: Hazardous Substances Data Bank (HSDB)
Fonofos incompatible materials
Substance is hydrolyzed in contact with strong acids and alkalis.
Source: Hazardous Substances Data Bank (HSDB)
Fonofos reactivity
Organothiophosphates, such as FONOFOS, 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 Fonofos in the storage compatibility matrix →
11 · Questions
Fonofos — frequently asked questions
What is the CAS number of Fonofos?
The CAS number of Fonofos is 944-22-9. Its EC number is 213-408-0.
What is the chemical formula of Fonofos?
The molecular formula of Fonofos is C10H15OPS2 and its molecular weight is 246.3 g/mol.
What does a Fonofos label have to show?
Under CLP Annex VI the label for Fonofos carries the pictograms Skull and crossbones and Environment and the signal word is Danger.
Is Fonofos flammable?
CLP Annex VI assigns Fonofos 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 94 °C (201.2 °F) (ICSC).
Is Fonofos a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Fonofos. 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 Fonofos?
The US occupational exposure limit reported for Fonofos is none See Appendix G (The National Institute for Occupational Safety and Health (NIOSH)). 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 Fonofos?
The boiling point reported for Fonofos is 380 °C (716 °F), at 760 mmHg (DOE PAC).
What is the melting point of Fonofos?
The melting point reported for Fonofos is 30 °C (86 °F) (ICSC).
How should Fonofos be stored?
Separated from food and feedstuffs. Keep in a well-ventilated room. (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Fonofos
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