Substance profile
Chlordane
Chlordane is viscous, amber-colored liquid with a penetrating; aromatic; slightly pungent, like chlorine odor.
01 · Identification
What Chlordane is
Chlordane is viscous, amber-colored liquid with a penetrating; aromatic; slightly pungent, like chlorine odor. Its molecular formula is C10H6Cl8 and its molecular weight is 409.8 g/mol. It melts at 106 °C.
Under the GHS it carries the signal word Warning. It is classed as hazardous Air Pollutants (HAPs).
02 · Identifiers
Chlordane identifiers and molecular data
Chlordane CAS number and EC number
Chlordane molecular formula and molecular weight
Other names for Chlordane
- chlordane (ISO)
- 1,2,4,5,6,7,8,8-octachloro-3a,4,7,7a-tetrahydro-4,7-methanoindan
03 · GHS classification
Chlordane hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Chlordane pictograms and signal word
Chlordane hazard class and category
| 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 |
| Carcinogenicity GHS chapter 3.6 | Category 2 | H351 | GHS08 |
| 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 |
Chlordane hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H351 | Suspected of causing cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| 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 Chlordane. 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 Chlordane
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 Chlordane 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
Chlordane precautionary statements
CLP Annex VI assigns 13 precautionary statements to Chlordane. 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
Chlordane 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 | хлордан (ISO) 1,2,4,5,6,7,8,8-октахлоро-3a,4,7,7a-тетрахидро-4,7-метаноиндан |
| Spanish español | Clordano (ISO) 1,2,4,5,6,7,8,8-octacloro-3a,4,7,7a-tetrahidro-4,7-metanoindano |
| Czech čeština | chlordan (ISO) 1,2,4,5,6,7,8,8-oktachlor-3a,4,7,7a-tetrahydro-4,7-methanoindan |
| Danish dansk | chlordan (ISO) 1,2,4,5,6,7,8,8-octachlor-3a,4,7,7a-tetrahydro-4,7-methanoindan |
| German Deutsch | Chlordan (ISO) 1,2,4,5,6,7,8,8-Octachlor-3a,4,7,7a-tetrahydro-4,7-methanoindan |
| Estonian eesti | klordaan (ISO) 1,2,4,5,6,7,8,8-oktakloro-3a,4,7,7a-tetrahüdro-4,7-metanoindaan |
| Greek ελληνικά | chlordane (χλωρδάνιο) (ISO) 1,2,4,5,6,7,8,8-οκταχλωρο-3a,4,7,7a-τετραϋδρο-4,7-μεθανοϊνδάνιο |
| English English | chlordane (ISO) 1,2,4,5,6,7,8,8-octachloro-3a,4,7,7a-tetrahydro-4,7-methanoindan |
| French français | chlordane (ISO) 1,2,4,5,6,7,8,8-octachloro-3a,4,7,7a-tétrahydro-4,7-méthanoindane |
| Croatian hrvatski | klordan (ISO) 1,2,4,5,6,7,8,8-oktaklor-3a,4,7,7a-tetrahidro-4,7-metanoindan |
| Italian italiano | 1,2,4,5,6,7,8,8-ottacloro-3a,4,7,7a-tetraidro-4,7-metanoindano |
| Latvian latviešu | hlordāns (ISO) 1,2,4,5,6,7,8,8-oktahlor-3a,4,7,7a-tetrahidro-4,7-metanoindāns |
| Lithuanian lietuvių | chlordanas (ISO) 1,2,4,5,6,7,8,8-oktachlor-3a,4,7,7a-tetrahidro-4,7-metanoindanas |
| Hungarian magyar | klórdán (ISO) 1,2,4,5,6,7,8,8-oktaklór-3a,4,7,7a-tetrahidro-4,7-metanoindán |
| Maltese Malti | klordan (ISO) 1,2,4,5,6,7,8,8-ottakloro-3a,4,7,7a-tetraidro-4,7-metanoindan |
| Dutch Nederlands | chloordaan (ISO) 1,2,4,5,6,7,8,8-octachloor-3a,4,7,7a-tetrahydro-4,7-methanoïndaan |
| Polish polski | chlordan (ISO) 1,2,4,5,6,7,8,8-oktachloro-3a,4,7,7a-tetrahydro-4,7-metanoindan |
| Portuguese português | clordano (ISO) 1,2,4,5,6,7,8,8-octacloro-3a,4,7,7a-tetra-hidro-4,7-metanoindano |
| Romanian română | clordan (ISO) 1,2,4,5,6,7,8,8-octacloro-3a,4,7,7a-tetrahidro-4,7-metanoinden |
| Slovak slovenčina | chlordán (ISO) 1,2,4,5,6,7,8,8-oktachlór-3a,4,7,7atetrahydro-4,7-metanoindán |
| Slovenian slovenščina | klordan (ISO) 1,2,4,5,6,7,8,8-oktakloro-3a,4,7,7a-tetrahidro-4,7-metanoindan |
| Finnish suomi | klordaani (ISO) 1,2,4,5,6,7,8,8-oktakloori-3a,4,7,7a-tetrahydro-4,7-metanoindaani |
| Swedish svenska | klordan (ISO) 1,2,4,5,6,7,8,8-oktaklor-3a,4,7,7a-tetrahydro-4,7-metanoindan |
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
Chlordane GHS label elements
Everything CLP Annex VI fixes for Chlordane, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
Chlordane
- Suspected of causing cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- Harmful in contact with skin.
- Harmful if swallowed.
- Very toxic to aquatic life.
- Very toxic to aquatic life with long lasting effects.
- Obtain special instructions before use.
- 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:
- IF exposed or concerned:
- Call a POISON CENTER/doctor/… if you feel unwell.
- Get medical advice/attention.
- 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 Chlordane in the GHS label constructor →
07 · Health hazards
Chlordane health hazards and exposure limits
Chlordane hazard summary
Chlordane is a manufactured chemical that was used as a pesticide in the United States from 1948 to 1988. Technical chlordane is not a single chemical, but is actually a mixture of pure chlordane mixed with many related chemicals. It doesn't occur naturally in the environment. It is a thick liquid whose color ranges from colorless to amber. Chlordane has a mild, irritating smell. Some of its trade names are Octachlor and Velsicol 1068. Until 1983, chlordane was used as a pesticide on crops like corn and citrus and on home lawns and gardens. Because of concern about damage to the environment and harm to human health, the Environmental Protection Agency (EPA) banned all uses of chlordane in 1983 except to control termites. In 1988, EPA banned all uses.
Source: Agency for Toxic Substances and Disease Registry (ATSDR)
Chlordane carcinogenicity classification
Studied by the US National Toxicology Program: TR-008: Bioassay of Chlordane for Possible Carcinogenicity (CASRN 57-74-9) (1977 )
Cancer Classification: Group B2 Probable Human Carcinogen
Source: Hazardous Substances Data Bank (HSDB)
WEIGHT OF EVIDENCE CHARACTERIZATION: Chlordane is classified as B2, probable human carcinogen, using the 1986 Guidelines for Carcinogen Risk Assessment. ...HUMAN CARCINOGENICITY DATA: Inadequate evidence. ANIMAL CARCINOGENICITY DATA: Sufficient.
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.
Chlordane occupational exposure limits
| Limit | Value | Source |
|---|---|---|
| PEL | 0.5 [mg/m3] | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
| PEL | 0.5 mg/m³ | Occupational Safety and Health Administration (OSHA) |
| PEL | TWA 0.5 mg/m3 [skin] | The National Institute for Occupational Safety and Health (NIOSH) |
| REL | 0.5 mg/m³ | Occupational Safety and Health Administration (OSHA) |
| REL | Ca TWA 0.5 mg/m3 [skin] See Appendix A | The National Institute for Occupational Safety and Health (NIOSH) |
| IDLH | 100 mg/m3 ; A potential occupational carcinogen. (NIOSH, 2024) | CAMEO Chemicals |
| IDLH | 100.0 [mg/m3] | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
| IDLH | NIOSH considers chlordane to be a potential occupational carcinogen. | 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
Chlordane 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.
Chlordane boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 175 °C (347 °F) | at 1 mmHg (reduced pressure) | HSDB |
| 175 °C (347 °F) | at 2 mmHg (reduced pressure) | CAMEO | |
| 175 °C (347 °F) | at 2.02517 mmHg (reduced pressure) | ICSC |
Chlordane melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 106 °C (222.8 °F) | DOE PAC | |
| 106.5 °C (223.7 °F) | range, midpoint shown | HSDB | |
| 105.83 °C (222.5 °F) | range, midpoint shown | NIOSH |
Chlordane density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.56 g/cm³ | OSHA | |
| 1.6 g/cm³ | at 25 °C | DOE PAC | |
| 1.61 g/cm³ | range, midpoint shown, at 25 °C | HSDB |
Chlordane solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Miscible with aliphatic and aromatic hydrocarbon solvents, including deodorized kerosene | HSDB | |
| 0.0001% | NIOSH | ||
| In water, 0.056 mg/L @ 25 °C | at 25 °C | HSDB |
Chlordane vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 0.00001 mmHg | NIOSH | |
| 0.00000975 mmHg | at 25 °C | HSDB | |
| 0.00001 mmHg | at 25 °C | CAMEO |
Chlordane flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 107.22 °C (225 °F) | HSDB |
Chlordane autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 210 °C (410 °F) | CAMEO |
Chlordane lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | 0.7%-5% (in kerosene soln) | HSDB | |
| Noncombustible Liquid, but may be utilized in flammable solutions. | NIOSH | ||
| Flammable/combustible. (EPA, 1998) | CAMEO |
Chlordane upper explosive limit (UEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Upper explosive limit (UEL) | Flammable/combustible. (EPA, 1998) | CAMEO |
Chlordane vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 14 (air = 1) | air= 1 at boiling point of chlordane | HSDB |
| 14 (air = 1) | CAMEO |
Chlordane odor threshold
| Property | Value | Conditions | Source |
|---|---|---|---|
| Odor threshold | Odor low: 0.0084 mg/cu m; Odor high: 0.0419 mg/cu m | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
Chlordane storage and handling
Chlordane safe storage
Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs, bases and incompatible materials. See Chemical Dangers. Well closed. Keep in a well-ventilated room.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Chlordane storage conditions
Ambient temperature for storage.
Source: Hazardous Substances Data Bank (HSDB)
Chlordane incompatible materials
Loses ...chlorine in presence of alkaline reagents and should not be formulated with any solvent, carrier, diluent or emulsifier, which has alkaline reaction.
Source: Hazardous Substances Data Bank (HSDB)
Chlordane reactivity
CHLORDANE is a chlorinated cyclodiene (unsaturated hydrocarbon). Decomposes in base. Corrosive to iron and zinc. Can react with strong oxidizing agents. Attack some plastics, rubbers and coatings (NTP, 1992).
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Chlordane in the storage compatibility matrix →
10 · Questions
Chlordane — frequently asked questions
What is the CAS number of Chlordane?
The CAS number of Chlordane is 57-74-9. Its EC number is 200-349-0.
What is the chemical formula of Chlordane?
The molecular formula of Chlordane is C10H6Cl8 and its molecular weight is 409.8 g/mol.
What does a Chlordane label have to show?
Under CLP Annex VI the label for Chlordane carries the pictograms Health hazard, Exclamation mark and Environment and the signal word is Warning.
Is Chlordane flammable?
CLP Annex VI assigns Chlordane 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 107.22 °C (225 °F) (HSDB).
Is Chlordane a carcinogen?
CLP Annex VI assigns Chlordane H351 — suspected of causing cancer. That is category 2: the evidence points that way but is not conclusive. IARC places it in Group 2B: possibly carcinogenic to humans.
What is the exposure limit for Chlordane?
The US occupational exposure limit reported for Chlordane is 0.5 [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 Chlordane?
The boiling point reported for Chlordane is 175 °C (347 °F), at 1 mmHg (reduced pressure) (HSDB).
What is the melting point of Chlordane?
The melting point reported for Chlordane is 106 °C (222.8 °F) (DOE PAC).
How should Chlordane be stored?
Ambient temperature for storage. (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Chlordane
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