Hydrazinium sulphate
| Formula | H6N2O4S |
| Chemical formula | N2H6SO4 |
| Molar mass | 130.12 g/mol |
| CAS number | 10034-93-2 |
| HS Code | 28251000 |
| EC number | 233-110-4 |
| Storage | Without limitation |
| SDS | available |
| R phrase | R 45-E23/24/25-43 |
| S phrase | S 53-45-60-61 |
| Odour | odourless |
| Form | powder |
| Color | white |
| p H value | 1.5 (50 g/l 20°C) |
| Solubility in water | 29 g/l (25°C) |
| Solubility in ethanol | insoluble |
| Melting point | 254 °C |
| Thermal decomposition | >250 °C |
| Assay | ≥ | 80 | % |
| Description | Conforms | ||
| Identification | Conforms | ||
| Solubility | Conforms | ||
| Insoluble matter | ≤ | 0.0050 | % |
| Heavy metals | ≤ | 0/0008 | % |
| Chloride | ≤ | 0/0005 | % |
| Iron | ≤ | 0/001 | % |
| Residue on ignition | ≤ | 0/05 | % |
Hydrazinium sulfate is an inorganic compound consisting of hydrazinium cations and sulfate anions, widely used as a reducing agent in analytical chemistry and certain industrial applications.
🏭⚗️ Production
Hydrazinium sulfate is produced by neutralizing hydrazine hydrate with sulfuric acid, typically under controlled conditions to form colorless crystals of the sulfate salt. In laboratory settings, the same reaction is used on a smaller scale with purification through crystallization.
🔬 Properties
It appears as a white, crystalline solid, soluble in water but insoluble in alcohol. The chemical formula is (N₂H₅)₂SO₄, and it has a molar mass of approximately 130.13 g/mol. It is thermally stable at room temperature but decomposes when heated, releasing nitrogen-containing gases. It is a moderately strong reducing agent and reacts with oxidizers.
🧪 Applications
Hydrazinium sulfate is mainly used in analytical chemistry, especially in the determination of trace metals, and as a reducing agent. It also has limited uses in the preparation of other hydrazine derivatives.
⚠️ Safety
Hydrazinium sulfate is toxic and potentially carcinogenic. It can cause skin and eye irritation and is harmful if inhaled or ingested. Proper protective equipment, including gloves, goggles, and fume hoods, should be used when handling. It must be stored in tightly sealed containers away from oxidizing agents and heat sources.
