Substance profile
Triazophos
Triazophos is a yellowish-brown oil.
01 · Identification
What Triazophos is
Triazophos is a yellowish-brown oil. Its molecular formula is C12H16N3O3PS and its molecular weight is 313.31 g/mol. It boils at 350 °C, melts at 5 °C, is soluble in water.
Under the GHS it carries the signal word Danger.
02 · Identifiers
Triazophos identifiers and molecular data
Triazophos CAS number and EC number
Triazophos molecular formula and molecular weight
Other names for Triazophos
- triazophos (ISO)
- O,O-diethyl-O-1-phenyl-1H-1,2,4-triazol-3-yl phosphorothioate
03 · GHS classification
Triazophos hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Triazophos pictograms and signal word
Triazophos hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Acute toxicity - oral GHS chapter 3.1 | Category 3 | H301 | GHS06 |
| Acute toxicity - dermal GHS chapter 3.1 | Category 4 | H312 | GHS07 |
| Acute toxicity - inhalation GHS chapter 3.1 | Category 3 | H331 | 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 |
Triazophos hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H331 | Toxic if inhaled. |
| H301 | Toxic if swallowed. |
| H312 | Harmful in contact with skin. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
This page lists only the codes assigned to Triazophos. 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 Triazophos
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 Triazophos 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
Triazophos precautionary statements
CLP Annex VI assigns 14 precautionary statements to Triazophos. 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
Triazophos 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 | триазофос (ISO) O, O -диетил- O -1-фенил-1 H -1,2,4-триазол-3-илов фосфоротиоат |
| Spanish español | Triazofós (ISO) fosforotioato de O, O -dietilo y O -1-fenil-1 H -1,2,4-triazol-3-ilo |
| Czech čeština | triazofos (ISO) O, O -diethyl- O -(1-fenyl-1 H -1,2,4-triazol-3-yl)-fosforothioát |
| Danish dansk | triazophos (ISO) O, O- diethyl- O- 1-phenyl-1 H- 1,2,4-triazol-3-ylthiophosphat |
| German Deutsch | Triazophos (ISO) O, O -Diethyl- O -(1-phenyl-1 H -1,2,4-triazol-3-yl)phosphorothioat |
| Estonian eesti | triasofoss (ISO) O , O -dietüül- O -1-fenüül-1 H -1,2,4-triasool-3-üülfosforotioaat |
| Greek ελληνικά | triazophos (τριαζωφός) (ISO) θειοφωσφορικό O, O -διαιθυλο- O -1-φαινυλο-1 H -1,2,4-τριαζολ-3-ύλιο |
| English English | triazophos (ISO) O, O -diethyl- O -1-phenyl-1 H -1,2,4-triazol-3-yl phosphorothioate |
| French français | triazophos (ISO) phosphorothioate de O, O -diéthyl- O -1-phényl-1 H -1,2,4-triazol-3-yle |
| Croatian hrvatski | triazofos (ISO) O, O -dietil- O -1-fenil-1 H -1,2,4-triazol-3-il-fosforotioat |
| Italian italiano | triazofos (ISO) ditiofosfato di O , O -dietile e O -1-fenil-1H-1,2,4-triazol-3-ile |
| Latvian latviešu | triazofoss (ISO) O, O -dietil- O -1-fenil-1 H -1,2,4-triazol-3-ilfosfortioāts |
| Lithuanian lietuvių | triazofosas (ISO) O, O -dietil- O -1-fenil-1 H -1,2,4-triazol-3-iltiofosfatas |
| Hungarian magyar | triazofosz (ISO) O, O -dietil- O -1-fenil-1 H -1,2,4-triazol-3-il-tiofoszfát |
| Maltese Malti | triażofos (ISO) fosforotijoat ta’ O, O-dietil-O-1-fenil-1H-1,2,4-triażol-3-il |
| Dutch Nederlands | triazofos (ISO) O , O -diëthyl- O -1-fenyl-1 H -1,2,4-triazool-3-ylthiofosfaat |
| Polish polski | triazofos (ISO) tiofosforan O, O-dietylu-O-1-fenylo-1H-1,2,4-triazol-3-ilu |
| Portuguese português | triazofos (ISO) tiofostato de O , O -dietilo e de O -1-fenil-1 H -1,2,4-triazol-3-ilo |
| Romanian română | triazofos (ISO) tiofosfat de O, O -dietil și de O -1-fenil-1 H -1,2,4- triazol-3-il |
| Slovak slovenčina | triazofos (ISO) O, O -dietyl- O -(1-fenyl-1 H -1,2,4-triazol-3-yl)-fosforotioát |
| Slovenian slovenščina | triazofos (ISO) O, O -dietil- O -1-fenil-1 H -1,2,4-triazol-3-il fosforotioat |
| Finnish suomi | triatsofossi (ISO) O , O -dietyyli- O -1-fenyyli-1 H -1,2,4-triatsol-3-yylifosforotioaatti |
| Swedish svenska | triazofos (ISO) O, O -dietyl- O -1-fenyl-1 H -1,2,4-triazol-3-ylfosfortioat |
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
Triazophos GHS label elements
Everything CLP Annex VI fixes for Triazophos, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Triazophos
- Toxic if inhaled.
- Toxic if swallowed.
- Harmful in contact with skin.
- Very toxic to aquatic life.
- Very toxic to aquatic life with long lasting effects.
- 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.
- Avoid release to the environment.
- 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.
- 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 Triazophos in the GHS label constructor →
07 · Health hazards
Triazophos health hazards and exposure limits
Triazophos hazard summary
A cholinesterase inhibitor; Can be absorbed through skin; [CAMEO] 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
08 · Physical and chemical properties
Triazophos 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.
Triazophos boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 350 °C (662 °F) | at 760 mmHg | DOE PAC |
| Decomposes on distillation | decomposes | HSDB | |
| Decomposes before boiling (EPA, 1998) | decomposes | CAMEO |
Triazophos melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 5 °C (41 °F) | HSDB | |
| 2.5 °C (36.5 °F) | range, midpoint shown | CAMEO |
Triazophos density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.2514 g/cm³ | at 20 °C | HSDB |
| 1.247 g/cm³ | at 20 °C | CAMEO | |
| 1.25 g/cm³ | at 20 °C | DOE PAC |
Triazophos solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Soluble in organic solvents | HSDB | |
| In water, 39 mg/L at 20 °C | at 20 °C | HSDB | |
| In water, 24.7 mg/L at 20 °C | at 20 °C | HSDB |
Triazophos vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 0.00001 mmHg | CAMEO | |
| 0.00001 mmHg | at 25 °C | DOE PAC | |
| 0.0000029 mmHg | at 30 °C | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
Triazophos storage and handling
Triazophos reactivity
Organophosphates, such as TRIAZOFOS, 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 Triazophos in the storage compatibility matrix →
10 · Questions
Triazophos — frequently asked questions
What is the CAS number of Triazophos?
The CAS number of Triazophos is 24017-47-8. Its EC number is 245-986-5.
What is the chemical formula of Triazophos?
The molecular formula of Triazophos is C12H16N3O3PS and its molecular weight is 313.31 g/mol.
What does a Triazophos label have to show?
Under CLP Annex VI the label for Triazophos carries the pictograms Skull and crossbones and Environment and the signal word is Danger.
Is Triazophos flammable?
CLP Annex VI assigns Triazophos 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.
Is Triazophos a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Triazophos. 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 Triazophos?
The boiling point reported for Triazophos is 350 °C (662 °F), at 760 mmHg (DOE PAC).
What is the melting point of Triazophos?
The melting point reported for Triazophos is 5 °C (41 °F) (HSDB).
Nearby
Substances next to Triazophos
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