Provenance

Reference data from EU CLP Annex VI and published regulations — verify against your supplier's SDS before use.

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Substance profile

Chlorthion

Chlorthion is pure compound is yellow crystals.

CAS 500-28-7 Warning

01 · Identification

What Chlorthion is

Chlorthion is pure compound is yellow crystals. It melts at 21 °C, is miscible with water.

Under the GHS it carries the signal word Warning.

02 · Identifiers

Chlorthion identifiers and molecular data

Chlorthion CAS number and EC number

CAS number500-28-7
EC number207-902-5
Index number (CLP Annex VI)015-042-00-5

Other names for Chlorthion

  • O-(3-chloro-4-nitrophenyl) O,O-dimethyl phosphorothioate

03 · GHS classification

Chlorthion hazard classification

Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.

Chlorthion pictograms and signal word

Signal wordWarning

Chlorthion hazard class and category

GHS hazard classes Chlorthion falls into
Hazard class Category From code Pictogram
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
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

Chlorthion hazard statements (H-codes)

Hazard statements assigned to Chlorthion
CodeHazard statement
H332 Harmful if inhaled.
H312 Harmful in contact with skin.
H302 Harmful 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 Chlorthion. 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 Chlorthion

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 Chlorthion 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

Chlorthion precautionary statements

CLP Annex VI assigns 13 precautionary statements to Chlorthion. 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.

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

Chlorthion 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 хлортион О -(4-нитро-3-хлорофенилов) O, O -диметилов фосфоротиоат
Spanish español Clortión fosforotioato de O -(3-cloro-4-nitrofenilo) y O, O -dimetilo
Czech čeština chlorthion O -(3-chlor-4-nitrofenyl)- O, O -dimethyl-fosforothioát
Danish dansk chlorthion O- (3-chlor-4-nitrophenyl)- O, O- dimethylthiophosphat
German Deutsch Chlorthion O -(3-Chlor-4-nitrophenyl)- O, O - dimethylphosphorothioat
Estonian eesti kloortioon O -(3-kloro-4-nitrofenüül)- O , O -dimetüülfosforotioaat
Greek ελληνικά χλωροθείο θειοφωσφορικό O -(3-χλωρο-4-νιτροφαινύλιο) O, O -διμεθύλιο
English English chlorthion O -(3-chloro-4-nitrophenyl) O, O -dimethyl phosphorothioate
French français chlorthion phosphorothioate de O -(3-chloro-4-nitrophényle) et de O, O -diméthyle
Croatian hrvatski klortion O -(3-klor-4-nitrofenil)- O, O -dimetil-fosforotioat
Italian italiano clortion (denominazione non adottata dall'ISO) O-(3-cloro-4-nitro-fenil)-O, O-dimetil-tiofosfato
Latvian latviešu hlortion- O -(3-hlor-4-nitrofenil)- O, O -dimetilfosfortioāts
Lithuanian lietuvių chlortionas O -(3-chlor-4-nitrofenil)- O, O -dimetiltiofosfatas
Hungarian magyar klórtion O -(3-klór-4-nitrofenil)- O, O -dimetil-tiofoszfát
Maltese Malti fosforotijoat ta’ O -(3-kloro-4-nitrofenil) O, O -dimetil tal-klortijun
Dutch Nederlands chloorthion O -(3-chloor-4-nitrofenyl)- O , O -dimethylthiofosfaat
Polish polski chlorotion tiofosforan O -3-chloro-4-nitrofenylu- O, O -dimetylu
Portuguese português clortião tiofosfato de O -(3-cloro-4-nitrofenilo) e de O , O -dimetilo
Romanian română clortion tiofosfat de O -3-(cloro-4-nitrofenil) și de O, O -dimetil
Slovak slovenčina chlórtión O -(3-chlór-4-nitrofenyl)- O, O -dimetyl-fosforotioát
Slovenian slovenščina klortion O -(3-kloro-4-nitrofenil) O, O -dimetil fosforotioat
Finnish suomi klortioni O -(3-kloori-4-nitrofenyyli)- O, O -dimetyylifosforotioaatti
Swedish svenska klortion- O -(3-klor-4-nitrofenyl)- O, O -dimetylfosfortioat

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

Chlorthion GHS label elements

Everything CLP Annex VI fixes for Chlorthion, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.

GHS07 Exclamation mark pictogramGHS09 Environment pictogram

Warning

Chlorthion

  • Harmful if inhaled.
  • Harmful in contact with skin.
  • Harmful if swallowed.
  • 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:
  • 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 Chlorthion in the GHS label constructor →

07 · Health hazards

Chlorthion health hazards and exposure limits

Chlorthion hazard summary

A cholinesterase inhibitor; [HSDB] 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

Chlorthion 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.

Chlorthion boiling point

Property Value Conditions Source
Boiling point 136 °C (276.8 °F) at 0.23 mmHg (reduced pressure) HSDB
125 °C (257 °F) at 0.1 mmHg (reduced pressure), COMMERCIAL PRODUCT HSDB
136 °C (276.8 °F) at 0.225019 mmHg (reduced pressure) HSDB

Chlorthion melting point

Property Value Conditions Source
Melting point 21 °C (69.8 °F) HSDB

Chlorthion density

Property Value Conditions Source
Density 1.437 g/cm³ at 20 °C HSDB

Chlorthion solubility

Property Value Conditions Source
Solubility Miscible in benzene, alcohol, ether HSDB
MISCIBLE IN AROMATIC SOLVENTS HSDB
SOL 1:25,000 IN WATER; READILY MISCIBLE IN TOLUENE & OIL HSDB

Chlorthion vapor pressure

Property Value Conditions Source
Vapor pressure 0.000004 mmHg at 20 °C HSDB
0.000004 mmHg Haz-Map

Chlorthion lower explosive limit (LEL)

Property Value Conditions Source
Lower explosive limit (LEL) CHLOROTHION (SELF-REACTIVE): WHEN SAMPLE WAS HEATED IN SMALL TEST TUBE IT DECOMPOSED & IN A FEW MIN RESIDUE EXPLODED. decomposes HSDB

Chlorthion corrosivity

Property Value Conditions Source
Corrosivity Noncorrosive HSDB

Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.

09 · Fire and explosion

Chlorthion 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.

Chlorthion fire potential

NOT FLAMMABLE @ NORMAL TEMP; THERMAL DECOMPOSITION POINT ABOUT 150 °C

Source: Hazardous Substances Data Bank (HSDB)

10 · Handling and storage

Chlorthion storage and handling

Chlorthion storage conditions

...MUST BE STORED IN ITS SEALED ORIGINAL CONTAINERS, IN WELL-AIRED, FRESH & DRY STOREHOUSES OR IN SHADED & POSSIBLY WELL-AIRED PLACES. IT IS RECOMMENDED THAT THE PRODUCT'S TEMP...NOT EXCEED 25-30 °C, & KEEP...AWAY FROM SOURCES OF HEAT, FREE FLAMES OR SPARK-GENERATING EQUIPMENT. CONTAINERS MUST BE STACKED IN SUCH A WAY AS TO PERMIT FREE CIRCULATION OF AIR...AT BOTTOM & INSIDE OF PILES. STORAGE AREAS MUST BE LOCATED AT SUITABLE DISTANCE FROM INHABITED BUILDINGS, ANIMAL SHELTERS, & FOOD STORES; MOREOVER, THEY MUST BE INACCESSIBLE TO UNAUTHORIZED PERSONS, CHILDREN, & DOMESTIC ANIMALS. /PROTHOATE/

Source: Hazardous Substances Data Bank (HSDB)

Planning storage for a mix of chemicals? Check Chlorthion in the storage compatibility matrix →

11 · Questions

Chlorthion — frequently asked questions

What is the CAS number of Chlorthion?

The CAS number of Chlorthion is 500-28-7. Its EC number is 207-902-5.

What does a Chlorthion label have to show?

Under CLP Annex VI the label for Chlorthion carries the pictograms Exclamation mark and Environment and the signal word is Warning.

Is Chlorthion flammable?

CLP Annex VI assigns Chlorthion 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 Chlorthion a carcinogen?

CLP Annex VI records no harmonised carcinogenicity classification for Chlorthion. 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 Chlorthion?

The boiling point reported for Chlorthion is 136 °C (276.8 °F), at 0.23 mmHg (reduced pressure) (HSDB).

What is the melting point of Chlorthion?

The melting point reported for Chlorthion is 21 °C (69.8 °F) (HSDB).

How should Chlorthion be stored?

...MUST BE STORED IN ITS SEALED ORIGINAL CONTAINERS, IN WELL-AIRED, FRESH & DRY STOREHOUSES OR IN SHADED & POSSIBLY WELL-AIRED PLACES. IT IS RECOMMENDED THAT THE PRODUCT'S TEMP...NOT EXCEED 25-30 °C, & KEEP...AWAY FROM SOURCES OF HEAT, FREE FLAMES OR SPARK-GENERATING EQUIPMENT. CONTAINERS MUST BE STACKED IN SUCH A WAY AS TO PERMIT FREE CIRCULATION OF AIR...AT BOTTOM & INSIDE OF PILES. STORAGE AREAS MUST BE LOCATED AT SUITABLE DISTANCE FROM INHABITED BUILDINGS, ANIMAL SHELTERS, & FOOD STORES; MOREOVER, THEY MUST BE INACCESSIBLE TO UNAUTHORIZED PERSONS, CHILDREN, & DOMESTIC ANIMALS. /PROTHOATE/ (Hazardous Substances Data Bank (HSDB))

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