Molekula
Sodium sulfide
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Sodium sulfide is a highly reactive inorganic compound used in chemical synthesis, pulp and paper manufacturing, and wastewater treatment. It also serves as a tanning agent in leather processing, a precipitating agent for separating solids, a pH regulator, and a processing aid in petroleum production. It appears as a white to yellowish solid and is soluble in water, releasing hydrogen sulfide gas. CAS: 1313-82-2, Molecular Formula: Na2S, Molecular Weight: 78.04 g/mol. Store at 2 to 8 °C. Hazardous: Signal word Danger. Molekula supplies Sodium sulfide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Yellow flakes |
| Assay | ≥60% |
| Iron (Fe) | ≤10ppm |
| Sodium Hydrogensulphide (As NaHS): | ≤5.0% |
| Sodium sulphite | ≤3% |
| Sodium thiosulfate (Na2S2O3) | ≤3.0% |
| Sodium carbonate (Na2CO3) | ≤2.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Transport Class | 4.2 |
| Packing Group | II |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 12420167 |
| CAS Number | 1313-82-2 |
| IUPAC Name | disodium;sulfanide |
| Molecular Formula | Na2S |
| Molecular Weight | 78.04 |
| Exact Mass | 78.9594 |
| SMILES | [Na+].[Na+].[SH-] |
| InChIKey | VDQVEACBQKUUSU-UHFFFAOYSA-M |
| InChI | InChI=1S/2Na.H2S/h;;1H2/q2*+1;/p-1 |
| PubChem CID | 237873 |
| UN Number | UN1385 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2830100000 |
| Tariff Code | 2830100000 |
Safety & GHS
-
Flammable
GHS02
-
Corrosive
GHS05
-
Toxic
GHS06
-
Hazardous to the Environment
GHS09
Hazard statements
- EUH031 Contact with acids liberates toxic gas
- H251 Self-heating; may catch fire
- H290 May be corrosive to metals
- H301 + H311 Toxic if swallowed or in contact with skin
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H400 Very toxic to aquatic life
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Russian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Disodium sulfide (Na2S)
- Disodium Sulfide Hydrate; Monosulfide Hydrate
- Disodium sulphide
- Na2-S
- Sodium sulfide (Na2S)
- Sodium sulfide (Na2S) (8CI,9CI)
- Sodium Sulfide Hydrate (Technical Grade)
- Sodum sulfuret
Frequently asked questions
What is sodium sulfide used for?
Sodium sulfide is commonly used in the pulp and paper industry, wastewater treatment, and in the synthesis of organic and inorganic compounds.
What is the chemical formula and molecular weight of sodium sulfide?
The formula is Na2S and the molecular weight is 78.04 g/mol.
How should sodium sulfide be stored?
Store at temperatures between 2 and 8 °C in a cool, dry place away from moisture and incompatible materials.
What grade of sodium sulfide does Molekula supply?
Molekula supplies sodium sulfide in technical grade; custom grades available upon request.
Can Molekula supply sodium sulfide in bulk?
Yes, Molekula can supply sodium sulfide in bulk quantities; please contact sales for details.
What documentation comes with a sodium sulfide order?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.