Substance profile
2,5-Dichloronitrobenzene
2,5-Dichloronitrobenzene is plates or prisms from alcohol, plates from ethyl acetate.
01 · Identification
What 2,5-Dichloronitrobenzene is
2,5-Dichloronitrobenzene is plates or prisms from alcohol, plates from ethyl acetate. Its molecular formula is C6H3Cl2NO2 and its molecular weight is 192 g/mol. It boils at 267 °C, melts at 56 °C.
Under the GHS it carries the signal word Danger.
02 · Identifiers
2,5-Dichloronitrobenzene identifiers and molecular data
2,5-Dichloronitrobenzene CAS number and EC number
2,5-Dichloronitrobenzene molecular formula and molecular weight
Other names for 2,5-Dichloronitrobenzene
- 1,4-dichloro-2-nitrobenzene
03 · GHS classification
2,5-Dichloronitrobenzene hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
2,5-Dichloronitrobenzene pictograms and signal word
2,5-Dichloronitrobenzene hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Carcinogenicity GHS chapter 3.6 | Category 1A or 1B | H350 | GHS08 |
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.
2,5-Dichloronitrobenzene hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H350 | May cause cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
This page lists only the codes assigned to 2,5-Dichloronitrobenzene. 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 2,5-Dichloronitrobenzene
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 2,5-Dichloronitrobenze… 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
2,5-Dichloronitrobenzene precautionary statements
CLP Annex VI assigns 4 precautionary statements to 2,5-Dichloronitrobenzene. 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.
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
2,5-Dichloronitrobenzene 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 | 1,4-дихлоро-2-нитробензен |
| Spanish español | 1,4-Dicloro-2-nitrobenceno |
| Czech čeština | 1,4-dichlor-2-nitrobenzen |
| Danish dansk | 1,4-dichlor-2-nitrobenzen |
| German Deutsch | 1,4-Dichlor-2-nitrobenzol |
| Estonian eesti | 1,4-dikloro-2-nitrobenseen |
| Greek ελληνικά | 1,4-διχλωρο-2-νιτροβενζόλιο |
| English English | 1,4-dichloro-2-nitrobenzene |
| French français | 1,4-dichloro-2-nitrobenzène |
| Croatian hrvatski | 1,4-diklor-2-nitrobenzen |
| Italian italiano | 1,4-dicloro-2-nitrobenzene |
| Latvian latviešu | 1,4-dihlor-2-nitrobenzols |
| Lithuanian lietuvių | 1,4-dichlor-2-nitrobenzenas |
| Hungarian magyar | 1,4-diklór-2-nitrobenzol |
| Maltese Malti | 1,4-dikloro-2-nitrobenżen |
| Dutch Nederlands | 1,4-dichloor-2-nitrobenzeen |
| Polish polski | 1,4-dichloro-2-nitrobenzen |
| Portuguese português | 1,4-dicloro-2-nitrobenzeno |
| Romanian română | 1,4-diclor-2-nitrobenzen |
| Slovak slovenčina | 1,4-dichlór-2-nitrobenzén |
| Slovenian slovenščina | 1,4-dikloro-2-nitrobenzen |
| Finnish suomi | 1,4-dikloori-2-nitrobentseeni |
| Swedish svenska | 1,4-diklor-2-nitrobensen |
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
2,5-Dichloronitrobenzene GHS label elements
Everything CLP Annex VI fixes for 2,5-Dichloronitrobenzene, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
2,5-Dichloronitrobenzene
- May cause cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- Obtain special instructions before use.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF exposed or concerned:
- Get medical advice/attention.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open 2,5-Dichloronitrobenzene in the GHS label constructor →
07 · Health hazards
2,5-Dichloronitrobenzene health hazards and exposure limits
2,5-Dichloronitrobenzene hazard summary
No listed effects of short-term or long-term exposure (health effects have not been fully investigated); [ICSC] Can possibly induce methemoglobinemia; Can be absorbed through skin; Not a skin or eye irritant in rabbits; Not sensitizing in guinea pig maximization tests; No mortalities in rats exposed by inhalation to 47.6 mg/m3 for 7 hours; Increased liver weight (accompanied by hepatocellular hypertrophy), damage to the forestomach, increased bilirubin levels, and adverse male reproductive effects (depressed spermatogenesis) observed in 28-day oral study of rats; Cyanosis and methemoglobin formation observed in cats; [IUCLID] A mild skin and strong eye irritant; May induce methemoglobinemia; Harmful by ingestion and skin absorption; [Sigma-Aldrich MSDS] See 3,4-Dichloronitrobenzene.
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
2,5-Dichloronitrobenzene carcinogenicity classification
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.
08 · Physical and chemical properties
2,5-Dichloronitrobenzene 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.
2,5-Dichloronitrobenzene boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 267 °C (512.6 °F) | HSDB | |
| 261 °C (501.8 °F) | ICSC |
2,5-Dichloronitrobenzene melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 56 °C (132.8 °F) | HSDB | |
| 55 °C (131 °F) | ICSC |
2,5-Dichloronitrobenzene density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.669 g/cm³ | at 22 °C | HSDB |
| 1.67 g/cm³ | ICSC | ||
| 1.479 g/cm³ | at 75 °C | HSDB |
2,5-Dichloronitrobenzene solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Soluble in ethanol, ether, benzene, carbon disulfide; slightly soluble in carbon tetrachloride | HSDB | |
| In water, 92.1 mg/L at 20 °C | at 20 °C | HSDB | |
| In water, 95 mg/L at 25 °C | at 25 °C | HSDB |
2,5-Dichloronitrobenzene vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 0.0038 mmHg | at 25 °C | HSDB |
| 0.005 mmHg | Haz-Map |
2,5-Dichloronitrobenzene flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 135 °C (275 °F) | ICSC |
2,5-Dichloronitrobenzene autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 465 °C (869 °F) | ICSC |
2,5-Dichloronitrobenzene lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | 2.4 % by volume | ICSC |
2,5-Dichloronitrobenzene upper explosive limit (UEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Upper explosive limit (UEL) | 8.5 % by volume | ICSC |
2,5-Dichloronitrobenzene vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 6.6 (air = 1) | ICSC |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
2,5-Dichloronitrobenzene storage and handling
2,5-Dichloronitrobenzene safe storage
Separated from bases, strong oxidants and food and feedstuffs. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Planning storage for a mix of chemicals? Check 2,5-Dichloronitrobenzene in the storage compatibility matrix →
10 · Questions
2,5-Dichloronitrobenzene — frequently asked questions
What is the CAS number of 2,5-Dichloronitrobenzene?
The CAS number of 2,5-Dichloronitrobenzene is 89-61-2. Its EC number is 201-923-3.
What is the chemical formula of 2,5-Dichloronitrobenzene?
The molecular formula of 2,5-Dichloronitrobenzene is C6H3Cl2NO2 and its molecular weight is 192 g/mol.
What does a 2,5-Dichloronitrobenzene label have to show?
Under CLP Annex VI the label for 2,5-Dichloronitrobenzene carries the pictogram Health hazard and the signal word is Danger.
Is 2,5-Dichloronitrobenzene flammable?
CLP Annex VI assigns 2,5-Dichloronitrobenzene 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 135 °C (275 °F) (ICSC).
Is 2,5-Dichloronitrobenzene a carcinogen?
Yes. CLP Annex VI classifies 2,5-Dichloronitrobenzene as a category 1A or 1B carcinogen and assigns it H350: may cause cancer. IARC places it in Group 2B: possibly carcinogenic to humans.
What is the boiling point of 2,5-Dichloronitrobenzene?
The boiling point reported for 2,5-Dichloronitrobenzene is 267 °C (512.6 °F) (HSDB).
What is the melting point of 2,5-Dichloronitrobenzene?
The melting point reported for 2,5-Dichloronitrobenzene is 56 °C (132.8 °F) (HSDB).
Nearby
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