Substance profile
Disodium sulfide
Disodium sulfide: wet Solid; Other Solid; Dry Powder; CBI; Large Crystals; Liquid.
01 · Identification
What Disodium sulfide is
Disodium sulfide: wet Solid; Other Solid; Dry Powder; CBI; Large Crystals; Liquid. Its molecular formula is HNa2S+ and its molecular weight is 79.06 g/mol.
Under the GHS it carries the signal word Danger.
02 · Identifiers
Disodium sulfide identifiers and molecular data
Disodium sulfide CAS number and EC number
Disodium sulfide molecular formula and molecular weight
Other names for Disodium sulfide
- sodium sulfide
03 · GHS classification
Disodium sulfide hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Disodium sulfide pictograms and signal word
Disodium sulfide 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 3 | H311 | GHS06 |
| Skin corrosion/irritation GHS chapter 3.2 | Category 1A or 1B or 1C | H314 | GHS05 |
| Hazardous to the aquatic environment - acute GHS chapter 4.1 | Category 1 | H400 | 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.
Disodium sulfide hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H311 | Toxic in contact with skin. |
| H302 | Harmful if swallowed. |
| H314 | Causes severe skin burns and eye damage. |
| H400 | Very toxic to aquatic life. |
This page lists only the codes assigned to Disodium sulfide. 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 Disodium sulfide
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 Disodium sulfide 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
Disodium sulfide precautionary statements
CLP Annex VI assigns 13 precautionary statements to Disodium sulfide. 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
Disodium sulfide 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 | динатриев сулфид натриев сулфид |
| Spanish español | Sulfuro de disodio sulfuro de sodio |
| Czech čeština | dinatrium-sulfid sulfid sodný |
| Danish dansk | dinatriumsulfid natriumsulfid |
| German Deutsch | Dinatriumsulfid Natriumsulfid |
| Estonian eesti | dinaatriumsulfiid naatriumsulfiid |
| Greek ελληνικά | θειούχο δινάτριο θειούχο νάτριο |
| English English | disodium sulfide sodium sulfide |
| French français | sulfure de disodium sulfure de sodium |
| Croatian hrvatski | dinatrijev sulfid natrijev sulfid |
| Italian italiano | solfuro disodio sodio solfuro |
| Latvian latviešu | dinātrija sulfīds nātrija sulfīds |
| Lithuanian lietuvių | dinatrio sulfidas natrio sulfidas |
| Hungarian magyar | dinátrium-szulfid nátrium-szulfid |
| Maltese Malti | sulfur tad-disodju sulfur tas-sodju |
| Dutch Nederlands | dinatriumsulfide natriumsulfide |
| Polish polski | siarczek sodu siarczek disodu |
| Portuguese português | sulfureto de dissódio sulfureto de sódio |
| Romanian română | sulfură de disodiu sulfură de sodiu |
| Slovak slovenčina | sulfid sodný |
| Slovenian slovenščina | dinatrijev sulfid natrijev sulfid |
| Finnish suomi | dinatriumsulfidi natriumsulfidi |
| Swedish svenska | dinatriumsulfid natriumsulfid |
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
Disodium sulfide GHS label elements
Everything CLP Annex VI fixes for Disodium sulfide, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Disodium sulfide
- Toxic in contact with skin.
- Harmful if swallowed.
- Causes severe skin burns and eye damage.
- Very toxic to aquatic life.
- Do not breathe dust/fume/gas/mist/vapours/spray.
- 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:
- Immediately call a POISON CENTER/doctor/…
- Call a POISON CENTER/doctor/… if you feel unwell.
- Rinse mouth.
- Do NOT induce vomiting.
- 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 Disodium sulfide in the GHS label constructor →
07 · Handling and storage
Disodium sulfide storage and handling
Disodium sulfide reactivity
SODIUM SULFIDE is a white to yellow crystalline material dissolved in water, flammable. Can explode on rapid heating or when shocked. Violent reaction with carbon, charcoal, diazonium salts, N,N-dichloromethylamine, strong oxidizers, water. On contact with acids it liberates highly toxic and flammable hydrogen sulfide gas. When heated to decomposition it emits toxic fumes of sodium oxide, and oxides of sulfur [Bretherick, 5th ed., 1995, p. 1729].
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Disodium sulfide in the storage compatibility matrix →
08 · Questions
Disodium sulfide — frequently asked questions
What is the CAS number of Disodium sulfide?
The CAS number of Disodium sulfide is 1313-82-2. Its EC number is 215-211-5.
What is the chemical formula of Disodium sulfide?
The molecular formula of Disodium sulfide is HNa2S+ and its molecular weight is 79.06 g/mol.
What does a Disodium sulfide label have to show?
Under CLP Annex VI the label for Disodium sulfide carries the pictograms Skull and crossbones, Corrosion and Environment and the signal word is Danger.
Is Disodium sulfide flammable?
CLP Annex VI assigns Disodium sulfide 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 Disodium sulfide a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Disodium sulfide. 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 Disodium sulfide
Keep going: substances starting with D, or search the whole database by name, CAS number, pictogram or signal word.