Substance profile
2-Nitronaphthalene
2-Nitronaphthalene: colourless-to-yellow solid in various forms.
01 · Identification
What 2-Nitronaphthalene is
2-Nitronaphthalene: colourless-to-yellow solid in various forms. It boils at 304 °C, melts at 78.9 °C, is practically insoluble in water.
Under the GHS it carries the signal word Danger.
02 · Identifiers
2-Nitronaphthalene identifiers and molecular data
2-Nitronaphthalene CAS number and EC number
03 · GHS classification
2-Nitronaphthalene hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
2-Nitronaphthalene pictograms and signal word
2-Nitronaphthalene hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Carcinogenicity GHS chapter 3.6 | Category 1A or 1B | H350 | GHS08 |
| Hazardous to the aquatic environment - chronic GHS chapter 4.1 | Category 2 | H411 | GHS09 |
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-Nitronaphthalene 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>. |
| H411 | Toxic to aquatic life with long lasting effects. |
This page lists only the codes assigned to 2-Nitronaphthalene. 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-Nitronaphthalene
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-Nitronaphthalene 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-Nitronaphthalene precautionary statements
CLP Annex VI assigns 7 precautionary statements to 2-Nitronaphthalene. 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
2-Nitronaphthalene 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 | 2-нитронафтален |
| Spanish español | 2-Nitronaftaleno |
| Czech čeština | 2-nitronaftalen |
| Danish dansk | 2-nitronaphthalen |
| German Deutsch | 2-Nitronaphthalin |
| Estonian eesti | 2-nitronaftaleen |
| Greek ελληνικά | 2-νιτροναφθαλίνιο |
| English English | 2-nitronaphthalene |
| French français | 2-nitronaphtalène |
| Croatian hrvatski | 2-nitronaftalen |
| Italian italiano | 2-nitronaftalene |
| Latvian latviešu | 2-nitronaftalīns |
| Lithuanian lietuvių | 2-nitronaftalenas |
| Hungarian magyar | 2-nitronaftalin |
| Maltese Malti | 2-nitronaftalen |
| Dutch Nederlands | 2-nitronaftaleen |
| Polish polski | 2-nitronaftalen |
| Portuguese português | 2-nitronaftaleno |
| Romanian română | 2-nitronaftalină |
| Slovak slovenčina | 2-nitronaftalén |
| Slovenian slovenščina | 2-nitronaftalen |
| Finnish suomi | 2-nitronaftaleeni |
| Swedish svenska | 2-nitronaftalen |
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-Nitronaphthalene GHS label elements
Everything CLP Annex VI fixes for 2-Nitronaphthalene, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
2-Nitronaphthalene
- May cause cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- Toxic to aquatic life with long lasting effects.
- Obtain special instructions before use.
- Avoid release to the environment.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF exposed or concerned:
- Get medical advice/attention.
- Collect spillage.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open 2-Nitronaphthalene in the GHS label constructor →
07 · Health hazards
2-Nitronaphthalene health hazards and exposure limits
2-Nitronaphthalene hazard summary
Irritation skin, Respiratory System; Dermatitis; Carcinogen [NIOSH] May cause methemoglobinemia; [ICSC] Viewed by IARC as not classifiable as to carcinogenicity in humans; Nitronaphthalene is in the ACGIH list of Industrial Chemicals for Which Methemoglobin Formation is the Principal Cause of Toxicity [ACGIH]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
2-Nitronaphthalene 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.
2-Nitronaphthalene occupational exposure limits
| Limit | Value | Source |
|---|---|---|
| PEL | none | The National Institute for Occupational Safety and Health (NIOSH) |
| REL | Ca* See Appendix A [*Note: Since metabolized to β-Naphthylamine.] | The National Institute for Occupational Safety and Health (NIOSH) |
| IDLH | A potential occupational carcinogen. (NIOSH, 2024) | CAMEO Chemicals |
| IDLH | Ca [N.D.] | The National Institute for Occupational Safety and Health (NIOSH) |
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
2-Nitronaphthalene 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-Nitronaphthalene boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 304 °C (579.2 °F) | ICSC |
2-Nitronaphthalene melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 78.89 °C (174 °F) | NIOSH | |
| 79 °C (174.2 °F) | ICSC |
2-Nitronaphthalene solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Insoluble | NIOSH | |
| Insoluble (NIOSH, 2024) | CAMEO | ||
| Solubility in water: very poor | ICSC |
2-Nitronaphthalene vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 0.00024 mmHg | at 25 °C | ICSC |
| 0.000258 mmHg | Haz-Map |
2-Nitronaphthalene lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | Combustible Solid | NIOSH |
2-Nitronaphthalene vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 5.89 (air = 1) | ICSC |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
2-Nitronaphthalene storage and handling
2-Nitronaphthalene safe storage
Well closed.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
2-Nitronaphthalene incompatible materials
For "Nitrates" in general: Aluminum, cyanides, esters, phosphorus, tin chlorides, thiocyanates, sodium hypophosphite
Source: The National Institute for Occupational Safety and Health (NIOSH)
2-Nitronaphthalene reactivity
2-NITRONAPHTHALENE is non-flammable but combustible (flash point 160 °C). Dust forms explosive mixtures with air. Heating or burning releases toxic and corrosive gases. Incompatible with strong oxidizing agents. Can serve as an oxidizing agent and so react with reducing agents such as hydrides, sulfides and nitrides. Such reactions may be vigorous and may culminate in a detonation. May explode in the presence of strong bases such as sodium or potassium hydroxide even in the presence of water or organic solvents.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check 2-Nitronaphthalene in the storage compatibility matrix →
10 · Questions
2-Nitronaphthalene — frequently asked questions
What is the CAS number of 2-Nitronaphthalene?
The CAS number of 2-Nitronaphthalene is 581-89-5. Its EC number is 209-474-5.
What does a 2-Nitronaphthalene label have to show?
Under CLP Annex VI the label for 2-Nitronaphthalene carries the pictograms Health hazard and Environment and the signal word is Danger.
Is 2-Nitronaphthalene flammable?
CLP Annex VI assigns 2-Nitronaphthalene 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 2-Nitronaphthalene a carcinogen?
Yes. CLP Annex VI classifies 2-Nitronaphthalene as a category 1A or 1B carcinogen and assigns it H350: may cause cancer. IARC places it in Group 3: not classifiable as to its carcinogenicity to humans.
What is the exposure limit for 2-Nitronaphthalene?
The US occupational exposure limit reported for 2-Nitronaphthalene is none (The National Institute for Occupational Safety and Health (NIOSH)). 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 2-Nitronaphthalene?
The boiling point reported for 2-Nitronaphthalene is 304 °C (579.2 °F) (ICSC).
What is the melting point of 2-Nitronaphthalene?
The melting point reported for 2-Nitronaphthalene is 78.89 °C (174 °F) (NIOSH).
Nearby
Substances next to 2-Nitronaphthalene
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