Molekula
Sodium sulfide nonahydrate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Sodium sulfide nonahydrate is a water-soluble inorganic compound used in chemical synthesis, wastewater treatment, and the production of dyes and pharmaceuticals. It is also employed for dehairing hides in leather processing, paper pulping, textile printing and dyeing, and ore flotation in metal extraction. It appears as colorless to pale yellow crystals and is highly reactive with moisture and air. CAS: 1313-84-4, Molecular formula: Na2S·9H2O, Molecular weight: 240.18 g/mol, Storage: 2 to 8 °C, Signal word: Danger.
Molekula supplies Sodium sulfide nonahydrate at ≥ 98.0% purity in 100 g and 250 g packs, from £44.76 inc. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 8 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
In stock — same-day dispatch
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
-
100 g — £37.30 per pack ex VAT · £44.76 inc. VAT
-
250 g — £66.00 per pack ex VAT · £79.20 inc. VAT
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.
Other grades of Sodium sulfide nonahydrate
| Grade | Purity | Price |
|---|---|---|
| Sodium sulfide nonahydrate (48%) | ≥48.0% purity | Price on request |
Specifications
| Property | Value |
|---|---|
| Appearance | White to off-white, or light grey to light green, or Colourless to light yellow solid |
| Assay | ≥ 98.0% |
| Moisture | 67.5% - 72.0% |
| Water insoluble matter | ≤ 0.015% |
| Iron (Fe) | 2 - 7ppm |
| Ammonium (NH4+) | ≤0.005% |
| Sodium thiosulfate (Na2S2O3) | ≤ 0.86% |
| Sodium carbonate (Na2CO3) | ≤0.5% |
| Sodium sulfide (Na2S) | ≥ 32.0% |
| Sulfite and Thiosulfate | ≤0.1% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Flash Point | 100 °C |
| Transport Class | 8 |
| Packing Group | II |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 67235606 |
| CAS Number | 1313-84-4 |
| IUPAC Name | disodium;sulfide;nonahydrate |
| EC Number | 639-249-0 |
| Molecular Formula | Na2S·9H2O |
| Molecular Weight | 240.18 |
| Exact Mass | 240.0467 |
| SMILES | O.O.O.O.O.O.O.O.O.[Na+].[Na+].[S-2] |
| InChIKey | ZGHLCBJZQLNUAZ-UHFFFAOYSA-N |
| InChI | InChI=1S/2Na.9H2O.S/h;;9*1H2;/q2*+1;;;;;;;;;;-2 |
| PubChem CID | 73972 |
| UN Number | UN1849 |
| REACH Code | Y110 |
| HTS Code | 2830.10.0000 |
| Tariff Code | 2830100000 |
Safety & GHS
-
Corrosive
GHS05
-
Toxic
GHS06
-
Hazardous to the Environment
GHS09
Hazard statements
- EUH031 Contact with acids liberates toxic gas
- EUH071 Corrosive to the respiratory tract
- H290 May be corrosive to metals
- H302 Harmful if swallowed
- H311 Toxic in contact with skin
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H400 Very toxic to aquatic life
- H410 Very toxic to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P264 Wash thoroughly after handling
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+P352 IF ON SKIN: Wash with soap and water
- P304+P340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
Documents
Safety Data Sheets (SDS)
Available in English, German, Spanish, French, Italian, Portuguese, Arabic, Dutch.
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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- Actisoufre
- Disodium sulfide nonahydrate
- disodium sulphide nonahydrate
- Sodium Monosulfide Nonahydrate
- sodium monosulphide nonahydrate
- Sodium sulfide (Na2S), nonahydrate
- Sodium sulfide (Na2S), nonahydrate (8CI,9CI)
- Sodium Sulfide Nonahydrate (Technical Grade)
- Sodium sulphide nonahydrate
- Sulfure de sodium
Frequently asked questions
What is sodium sulfide nonahydrate used for?
It is commonly used in the production of dyes, pharmaceuticals, and in the mining industry for flotation processes.
What is the chemical formula and molecular weight of sodium sulfide nonahydrate?
The formula is Na2S·9H2O with a molecular weight of 240.18 g/mol.
How should sodium sulfide nonahydrate be stored?
It should be stored at temperatures between 2 to 8 °C to maintain stability and prevent decomposition.
What grade is available for sodium sulfide nonahydrate?
Molekula offers technical grade sodium sulfide nonahydrate for industrial applications.
Can Molekula supply sodium sulfide nonahydrate in bulk?
Yes, Molekula can supply sodium sulfide nonahydrate in bulk quantities—please contact our sales team for details.
What documentation comes with an order of sodium sulfide nonahydrate?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
Where can I buy Sodium sulfide nonahydrate?
Directly from Molekula, which lists Sodium sulfide nonahydrate in 100 g and 250 g packs from £44.76 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
Is Sodium sulfide nonahydrate dangerous goods for shipping?
Yes. Sodium sulfide nonahydrate ships as dangerous goods: UN1849, class 8, packing group II.
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.