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VWR Ammonium sulphide 20% in aqueous solution, GPR RECTAPUR®
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Specifications:
| Application | Analytical Chemistry | ||
| Storage Temperature | Ambient | ||
| Product Type | Laboratory Chemical | Forms | Liquid |
| Product Brand | VWR | ||
| Product Grade | Analytical grade | Formula | H₈N₂S |
Ammonium sulphide (NH₄)₂S, provided as a 20% aqueous solution, is a strong alkaline and reducing agent commonly used in analytical chemistry, metallurgy, and select organic reactions. The GPR RECTAPUR® grade ensures high purity and trace impurity control, making it suitable for general-purpose applications in laboratory and industrial settings.
Key Features
- 20% Aqueous Solution: Convenient pre-diluted form for safe and ready use in lab protocols
- GPR RECTAPUR® Grade: Assured reagent quality with controlled trace impurities
- Versatile Sulphide Source: Applicable in analytical tests, sulfidation, and metal precipitation
- Corrosive and Flammable: Requires appropriate handling, PPE, and storage procedures
- Packaged in Glass Bottles: Prevents degradation and leaching, ensuring chemical stability
Chemical and Physical Properties
| Property | Specification |
|---|---|
| Chemical Name | Ammonium sulphide |
| CAS Number | 12135-76-1 |
| Molecular Formula | H₈N₂S |
| Molecular Weight | 68.14 g/mol |
| Storage Temperature | Ambient |
| EINECS Number | 235-223-4 |
| MDL Number | MFCD00010892 |
| UN Number | UN2683 |
| ADR Classification | Class 8 (Corrosive), 3 (Flammable), 6.1 (Toxic), PG II |
Safety and Handling
| Hazard Classification | Details |
|---|---|
| GHS Pictograms | Flammable |
| Corrosive | |
| Hazard Statements | H314: Causes severe skin burns and eye damage |
| H226: Flammable liquid and vapour | |
| H301: Toxic if swallowed | |
| Precautions | Use in fume hood, wear protective clothing and gloves, store in a well-ventilated area |
Typical Applications
- Analytical Chemistry: Precipitation of metal sulfides (e.g., qualitative group analysis)
- Metallurgy: Sulfidation of ores and surface treatment of metal alloys
- Organic Synthesis: In specific reduction or thiolation reactions
- Semiconductor & Material Science: Used in formation of sulfide layers or thin films
- Laboratory Reagent: Compatible with protocols requiring sulfide ions in aqueous medium
VWR Ammonium Sulphide 20% Aqueous, GPR RECTAPUR® is a reliable, high-purity sulfide reagent suited for general lab, metallurgical, and analytical uses. Its convenient liquid form and consistent composition make it ideal for applications where sulfide reactivity is required under controlled conditions.