Molekula
Ammonium sulphide solution 40-48 wt. % in H2O
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
Ammonium sulphide solution is a clear, yellowish to brownish aqueous solution containing 40–48% by weight of (NH₄)₂S, primarily used as a reducing agent in chemical synthesis, metal processing, and wastewater treatment. It also serves as a sulfurizing agent in organic reactions and for sulfide precipitation in analytical chemistry. This product has a CAS number of 12135-76-1, with the molecular formula S(NH₄)₂ and a molecular weight of 68.14. It is stored at ambient conditions but requires careful handling due to its hazardous nature, indicated by the **Danger** signal word. Molekula supplies ammonium sulphide solution 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
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.
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100 mL — £122.00 per pack ex VAT · £146.40 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.
Specifications
| Property | Value |
|---|---|
| Appearance | Liquid |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 20 °C |
| Transport Class | 8 (3, 6.1) |
| Packing Group | II |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 90032649 |
| CAS Number | 12135-76-1 |
| Molecular Formula | S(NH4)2 |
| Molecular Weight | 68.14 |
| SMILES | S([NH4])[NH4] |
| UN Number | UN2683 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 28309090 |
| Tariff Code | 2830908500 |
Safety & GHS
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Flammable
GHS02
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Corrosive
GHS05
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Hazardous to the Environment
GHS09
Hazard statements
- EUH031 Contact with acids liberates toxic gas
- H225 Highly flammable liquid and vapour
- H314 (sub cat. 1B) Causes severe skin burns and eye damage
- H400 Very toxic to aquatic life
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- 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, 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
No alternate names recorded for this product.
Frequently asked questions
What is ammonium sulphide solution primarily used for?
Ammonium sulphide solution is commonly used in sulfide precipitation for metal recovery, as a reducing agent in chemical synthesis, and in the production of sulfides for analytical chemistry.
What is the chemical formula and molecular weight of ammonium sulphide?
The chemical formula is **S(NH₄)₂**, and the molecular weight is **68.14 g/mol** (anhydrous basis).
How should ammonium sulphide solution be stored?
Store at **ambient temperature** in a tightly sealed container, away from oxidizing agents, heat, and incompatible materials like acids or strong bases.
What grade or purity level is available for this product?
Molekula supplies ammonium sulphide solution in **technical/industrial grade (40-48 wt. % in H₂O)**. Higher purity grades may be available upon request.
Can Molekula supply ammonium sulphide solution in bulk quantities?
Yes, bulk quantities are available—please contact our sales team for pricing, lead times, and packaging options (e.g., drums, IBCs).
What documentation is provided with an order of ammonium sulphide solution?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS/SDS)**, and **Dangerous Goods Declaration** (if applicable).
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.