Substance profile
Dichlone
Dichlone is golden yellow needles or leaflets from alcohol.
01 · Identification
What Dichlone is
Dichlone is golden yellow needles or leaflets from alcohol. Its molecular formula is C10H4Cl2O2 and its molecular weight is 227.04 g/mol. It boils at 275 °C, melts at 195 °C.
Under the GHS it carries the signal word Warning.
02 · Identifiers
Dichlone identifiers and molecular data
Dichlone CAS number and EC number
Dichlone molecular formula and molecular weight
Other names for Dichlone
- dichlone (ISO)
- 2,3-dichloro-1,4-naphthoquinone
03 · GHS classification
Dichlone hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Dichlone pictograms and signal word
Dichlone hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Acute toxicity - oral GHS chapter 3.1 | Category 4 | H302 | GHS07 |
| Skin corrosion/irritation GHS chapter 3.2 | Category 2 | H315 | GHS07 |
| Serious eye damage/eye irritation GHS chapter 3.3 | Category 2A | H319 | 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 |
Dichlone hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H302 | Harmful if swallowed. |
| H315 | Causes skin irritation. |
| H319 | Causes serious eye irritation. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
This page lists only the codes assigned to Dichlone. 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 Dichlone
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 Dichlone 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
Dichlone precautionary statements
CLP Annex VI assigns 16 precautionary statements to Dichlone. 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
Dichlone 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 | дихлон (ISO) 1,4-нафто-2,3-дихлорохинон |
| Spanish español | Diclona (ISO) 2,3-dicloro-1,4-naftoquinona |
| Czech čeština | dichlon (ISO) 2,3-dichlor-1,4-naftochinon |
| Danish dansk | dichlon (ISO) 2,3-dichlor-1,4-naphthoquinon |
| German Deutsch | Dichlon (ISO) 2,3-Dichlor-1,4-naphthochinon |
| Estonian eesti | dikloon (ISO) 2,3-dikloro-1,4-naftokinoon |
| Greek ελληνικά | dichlone (διχλόνη) (ISO) 2,3-διχλωρο-1,4-ναφθοκινόνη |
| English English | dichlone (ISO) 2,3-dichloro-1,4-naphthoquinone |
| French français | dichlone (ISO) 2,3-dichloro-1,4-naphtoquinone |
| Croatian hrvatski | diklon (ISO) 2,3-diklor-1,4-naftokinon |
| Italian italiano | diclone (ISO) 2,3-dicloro-1,4-naftochinone |
| Latvian latviešu | dihlons (ISO) 2,3-dihlor-1,4-naftohinons |
| Lithuanian lietuvių | dichlonas (ISO) 2,3-dichlor-1,4-naftochinonas |
| Hungarian magyar | diklon (ISO) 2,3-diklór-1,4-naftokinon |
| Maltese Malti | diklon (ISO) 2,3-dikloro-1,4-naftokinon |
| Dutch Nederlands | dichlone (ISO) 2,3-dichloor-1,4-naftochinon |
| Polish polski | dichlon (ISO) 2,3-dichloro-1,4-naftochinon |
| Portuguese português | diclona (ISO) 2,3-dicloro-1,4-naftoquinona |
| Romanian română | diclon (ISO) 2,3-dicloro-1,4-naftochinonă |
| Slovak slovenčina | dichlón (ISO) 2,3-dichlór-1,4-naftochinón |
| Slovenian slovenščina | diklon (ISO) 2,3-dikloro-1,4-naftokinon |
| Finnish suomi | dikloni (ISO) 2,3-dikloori-1,4-naftokinoni |
| Swedish svenska | diklon (ISO) 2,3-diklor-1,4-naftokinon |
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
Dichlone GHS label elements
Everything CLP Annex VI fixes for Dichlone, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
Dichlone
- Harmful if swallowed.
- Causes skin irritation.
- Causes serious eye irritation.
- Very toxic to aquatic life.
- Very toxic to aquatic life with long lasting effects.
- Wash … thoroughly after handling.
- 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 IN EYES:
- Call a POISON CENTER/doctor/… if you feel unwell.
- Get medical advice/attention.
- Rinse mouth.
- If skin irritation occurs:
- If eye irritation persists:
- Remove contact lenses, if present and easy to do. Continue rinsing.
- 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 Dichlone in the GHS label constructor →
07 · Health hazards
Dichlone health hazards and exposure limits
Dichlone hazard summary
A skin, eye, and mucous membrane irritant; In animal experiments, caused internal bleeding and anemia after feeding 1-3 g/kg; [HSDB] A CNS depressant; [Merck Index] A skin and eye irritant; [eChemPortal: ESIS]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
08 · Physical and chemical properties
Dichlone 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.
Dichlone boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 275 °C (527 °F) | sublimes | CAMEO |
| 275 °C (527 °F) | at 2 mmHg (reduced pressure) | HSDB |
Dichlone melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 195 °C (383 °F) | HSDB | |
| 193 °C (379.4 °F) | CAMEO | ||
| 188 °C (370.4 °F) | above this value, Technical Grade | HSDB |
Dichlone solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Slightly sol in alcohol, ether, benzene | HSDB | |
| About 4% in xylene, o-dichlorobenzene. Moderately soluble in acetone, dioxane | HSDB | ||
| In water, 8.0 mg/L; water buffered to pH 7.4. | Temp not specified | HSDB |
Dichlone vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 0.0000011 mmHg | at 25 °C | HSDB |
| 0.0000011 mmHg | Haz-Map |
Dichlone vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 7.8 (air = 1) | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
Dichlone storage and handling
Dichlone storage conditions
Keep out of reach of children. Keep away from food, drink, and animal feeding stuffs.
Source: Hazardous Substances Data Bank (HSDB)
Dichlone incompatible materials
Incompatible with petroleum oils, dinitro compounds, organomercury compounds, calcium arsenate, lime sulfur, Bordeaux mixture, nicotine, and emulsifiable concentrate formulations.
Source: Hazardous Substances Data Bank (HSDB)
Dichlone reactivity
DICHLONE is a halogenated ketone. Ketones are reactive with many acids and bases liberating heat and flammable gases (e.g., H2). The amount of heat may be sufficient to start a fire in the unreacted portion of the ketone. Ketones react with reducing agents such as hydrides, alkali metals, and nitrides to produce flammable gas (H2) and heat. Ketones are incompatible with isocyanates, aldehydes, cyanides, peroxides, and anhydrides. They react violently with aldehydes, HNO3, HNO3 + H2O2, and HClO4.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Dichlone in the storage compatibility matrix →
10 · Questions
Dichlone — frequently asked questions
What is the CAS number of Dichlone?
The CAS number of Dichlone is 117-80-6. Its EC number is 204-210-5.
What is the chemical formula of Dichlone?
The molecular formula of Dichlone is C10H4Cl2O2 and its molecular weight is 227.04 g/mol.
What does a Dichlone label have to show?
Under CLP Annex VI the label for Dichlone carries the pictograms Exclamation mark and Environment and the signal word is Warning.
Is Dichlone flammable?
CLP Annex VI assigns Dichlone 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 Dichlone a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Dichlone. 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 Dichlone?
The boiling point reported for Dichlone is 275 °C (527 °F), sublimes (CAMEO).
What is the melting point of Dichlone?
The melting point reported for Dichlone is 195 °C (383 °F) (HSDB).
How should Dichlone be stored?
Keep out of reach of children. Keep away from food, drink, and animal feeding stuffs. (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Dichlone
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