Overview
Silver chloride (CAS 7783-90-6 ), commonly referenced by its formula AgCl, is an inorganic silver salt used across pharmaceutical, personal care, and biotechnology applications. It functions primarily as an antimicrobial agent and catalyst precursor.
The compound delivers controlled silver ion release in formulations and technical processes. In personal care, AgCl is incorporated into deodorant and wound care formulations where sustained antimicrobial activity is required.
This material is often preferred over metallic silver due to specific regulatory considerations. Pharmaceutical manufacturers use it as a reference electrode material and as a precursor in the synthesis of other silver compounds.
These compounds are essential for various diagnostic and therapeutic products. In biotechnology, silver chloride supports electrode fabrication for biosensors and electrochemical detection systems used in modern laboratories.
Catalyst producers also source AgCl as a starting material for preparing silver-based catalysts. These are used in selective oxidation and chemical synthesis processes across the global manufacturing sector.
Silver chloride is supplied as a white to off-white powder, with particle size and purity specifications varying by application. Pharmaceutical and analytical grades meeting USP and reagent-grade standards are available.
Technical-grade material is also provided for industrial catalyst and pigment applications. Photosensitive handling requirements during storage and transit are standard considerations for procurement and logistics teams.
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Physical Properties
| Melting Point | 455 °C |
| Boiling Point | 1550 °C |
| Density | 5.4 g/cm³ |
| Flash Point | 1550°C |
| Appearance | White Crystalline Powder |
| Color | Yellow |
| Form | beads |
| Water Solubility | 1.93 mg/L (25 ºC) |
| Vapor Pressure | 1 mm Hg ( 912 °C) |
| Refractive Index | 2.071 |
Safety & Handling
Warning GHS05 GHS07 GHS09 Hazard Statements H290 May be corrosive to metals H335 May cause respiratory irritation H400 Very toxic to aquatic life H410 Very toxic to aquatic life with long lasting effects Precautionary Statements P234 Keep only in original packaging. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment. P319 Get medical advice/attention if you feel unwell. P390 Absorb spillage to prevent material damage. P391 Collect spillage. P405 Store locked up. P406 Store in a corrosion-resistant/… container with a resistant inner liner. P501 Dispose of contents/container in accordance with local regulations. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P403+P233 Store in a well-ventilated place. Keep container tightly closed.
Trade & Regulatory
| HS Code | 28432900 |
| UN Number | 3077 |
| ADR Class | 9 |
| Packing Group | III |
| Storage Class | 8B - Non-combustible corrosive hazardous materials |
| WGK (Germany) | 3 |
Other Names
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Chemical Properties
- CAS Number
- 7783-90-6
- EC Number
- 232-033-3
- Mol. Weight
- 143.32
- HS Code
- 28432900
- Category
- Pigments & Colorants