Ammonium sulfide solution
Ammonium sulfide solution (CAS: 12135-76-1) is a clear, colourless to yellow aqueous solution with the linear formula (NH 4)2S and a molecular weight of 68.14 g/mol. This inorganic salt, supplied in concentrations typically ranging from 40-48 wt. % in water, is a key reagent in chemical synthesis and various industrial processes. Its properties make it valuable in analytical chemistry and for the preparation of other sulfur-containing compounds.
Chemical Synthesis
Ammonium sulfide solution is widely used as a reagent in organic and inorganic synthesis. It serves as a source of sulfide ions for precipitation reactions and for the preparation of organosulfur compounds.
Analytical Reagent
This solution finds application in qualitative and quantitative analysis, particularly for the detection and separation of metal ions through sulfide precipitation. It is instrumental in traditional wet chemical analysis.
Dye Manufacturing
It is employed in the manufacturing of certain dyes and pigments, where its sulfur-containing nature contributes to the chromophoric properties of the final product.
Mining and Metallurgy
Ammonium sulfide can be used in certain hydrometallurgical processes for the selective precipitation of metal sulfides, aiding in metal recovery and purification.
| Molecular weight | 68.14 |
|---|---|
| Linear formula | (NH4)2S |
| Boiling point | 40 °C |
| Density | 1 g/mL at 25 °C |
| Refractive index | n20/D 1.467 |
| Concentration | 40-48 wt. % in H2O |
Hazard statements
- H225Highly flammable liquid and vapour
- H314Causes severe skin burns and eye damage
- H400Very toxic to aquatic life
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US) |
|---|---|
| Flash point | 20 °C / 68 °F |
| Transport (UN / ADR) | UN 2683 8/PG 2 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,C,N |
| Risk statements (R) | 11-31-34-50 |
| Safety statements (S) | 16-26-36/37/39-45-61 |
| Supplemental hazards | Contact with acids liberates toxic gas. |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Ammonium sulfide solution used for?
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Ammonium sulfide solution is primarily used in chemical synthesis, as an analytical reagent for detecting metal ions, and in the manufacturing of dyes and pigments. It is also utilized in certain mining and metallurgical processes.
What is the CAS number and formula for Ammonium sulfide solution?
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The CAS number is 12135-76-1, and the linear formula is (NH 4)2S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Ammonium sulfide solution typically at a concentration of 40-48 wt. % in water. This is generally considered a technical or research grade. TSS does not represent this product as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated.
What are the main hazards associated with Ammonium sulfide solution?
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Ammonium sulfide solution is highly flammable and corrosive, causing severe skin burns and eye damage. It is also toxic to aquatic life with long-lasting effects. Contact with acids liberates toxic gas. Extreme care, including appropriate personal protective equipment (PPE) such as gloves, goggles, and respiratory protection, is essential during handling.
How is Ammonium sulfide solution packed and shipped?
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Ammonium sulfide solution is typically packed in suitable containers designed for hazardous materials and shipped in compliance with international regulations for the transport of dangerous goods. TSS offers reliable global export services.
How can I request a quote or sample for Ammonium sulfide solution?
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To request a quote or sample of Ammonium sulfide solution, please visit the Tech Serve Solutions website or contact our sales department directly with your specific requirements.
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