Substance profile
Manganese dioxide
Manganese dioxide: dry Powder; Large Crystals; CBI; Large Crystals; Other Solid; Wet Solid; Dry Powder.
01 · Identification
What Manganese dioxide is
Manganese dioxide: dry Powder; Large Crystals; CBI; Large Crystals; Other Solid; Wet Solid; Dry Powder. Its molecular formula is MnO2 and its molecular weight is 86.937 g/mol.
Under the GHS it carries the signal word Warning.
02 · Identifiers
Manganese dioxide identifiers and molecular data
Manganese dioxide CAS number and EC number
Manganese dioxide molecular formula and molecular weight
03 · GHS classification
Manganese dioxide hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Manganese dioxide pictograms and signal word
Manganese dioxide hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Acute toxicity - oral GHS chapter 3.1 | Category 4 | H302 | GHS07 |
| Acute toxicity - inhalation GHS chapter 3.1 | Category 4 | H332 | GHS07 |
Manganese dioxide hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H332 | Harmful if inhaled. |
| H302 | Harmful if swallowed. |
This page lists only the codes assigned to Manganese dioxide. 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 Manganese dioxide
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 Manganese dioxide 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
Manganese dioxide precautionary statements
CLP Annex VI assigns 7 precautionary statements to Manganese dioxide. 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
Manganese dioxide 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 | манганов диоксид |
| Spanish español | Dióxido de manganeso |
| Czech čeština | oxid manganičitý |
| Danish dansk | mangandioxid |
| German Deutsch | Mangandioxid Braunstein |
| Estonian eesti | mangaandioksiid |
| Greek ελληνικά | διοξείδιο του μαγγανίου |
| English English | manganese dioxide |
| French français | dioxyde de manganèse |
| Croatian hrvatski | manganov dioksid |
| Italian italiano | biossido di manganese |
| Latvian latviešu | mangāna dioksīds |
| Lithuanian lietuvių | mangano dioksidas |
| Hungarian magyar | mangán-dioxid |
| Maltese Malti | diossidu tal-manganiż |
| Dutch Nederlands | mangaandioxide |
| Polish polski | tlenek manganu(IV) ditlenek manganu |
| Portuguese português | dióxido de manganês |
| Romanian română | dioxid de mangan |
| Slovak slovenčina | oxid manganičitý |
| Slovenian slovenščina | manganov dioksid |
| Finnish suomi | mangaanidioksidi |
| Swedish svenska | mangandioxid |
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
Manganese dioxide GHS label elements
Everything CLP Annex VI fixes for Manganese dioxide, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
Manganese dioxide
- Harmful if inhaled.
- Harmful if swallowed.
- 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.
- IF SWALLOWED:
- IF INHALED:
- Call a POISON CENTER/doctor/… if you feel unwell.
- Rinse mouth.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Manganese dioxide in the GHS label constructor →
07 · Health hazards
Manganese dioxide health hazards and exposure limits
Manganese dioxide hazard summary
Inhalation of dust may cause diseases of the lungs (bronchitis and pneumonia) and CNS (manganism); [ICSC] A strong oxidizer; [Merck Index] Harmful by ingestion, inhalation; May cause irritation; [Alfa Aesar MSDS] See Manganese and linked occupational diseases.
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
08 · Physical and chemical properties
Manganese dioxide 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.
Manganese dioxide density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 5 g/cm³ | ICSC | |
| 5.08 g/cm³ | at 25 °C | DOE PAC |
Manganese dioxide solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Solubility in water: none | ICSC |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
Manganese dioxide storage and handling
Manganese dioxide safe storage
Separated from combustible substances and reducing agents.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Planning storage for a mix of chemicals? Check Manganese dioxide in the storage compatibility matrix →
10 · Questions
Manganese dioxide — frequently asked questions
What is the CAS number of Manganese dioxide?
The CAS number of Manganese dioxide is 1313-13-9. Its EC number is 215-202-6.
What is the chemical formula of Manganese dioxide?
The molecular formula of Manganese dioxide is MnO2 and its molecular weight is 86.937 g/mol.
What does a Manganese dioxide label have to show?
Under CLP Annex VI the label for Manganese dioxide carries the pictogram Exclamation mark and the signal word is Warning.
Is Manganese dioxide flammable?
CLP Annex VI assigns Manganese dioxide 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 Manganese dioxide a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Manganese dioxide. 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.
Nearby
Substances next to Manganese dioxide
Keep going: substances starting with M, or search the whole database by name, CAS number, pictogram or signal word.