Mercury 99.999% Purity Specification
Chemical Name: Mercury
Chemical Symbol: Hg
Purity: 99.999% (5N)
Molecular Weight: 200.59 g/mol
Physical State: Liquid at room temperature
Appearance: Silver-white, heavy, mobile liquid
Odor: Odorless
Typical Impurity Profile (maximum values, ppm unless otherwise noted)
| Impurity | Max. Concentration |
|---|---|
| Iron (Fe) | 0.05 |
| Silver (Ag) | 0.05 |
| Copper (Cu) | 0.05 |
| Zinc (Zn) | 0.05 |
| Lead (Pb) | 0.05 |
| Calcium (Ca) | 0.05 |
| Magnesium (Mg) | 0.05 |
| Arsenic (As) | 0.05 |
| Antimony (Sb) | 0.05 |
| Bismuth (Bi) | 0.05 |
| Selenium (Se) | 0.05 |
| Tin (Sn) | 0.05 |
| Aluminum (Al) | 0.05 |
| Gold (Au) | 0.05 |
| Sodium (Na) | 0.05 |
| Potassium (K) | 0.05 |
| Other metallics | 0.05 |
Actual impurity values may vary by batch and supplier but should not exceed these maximums.
Physical and Chemical Properties
- Density: 13.534 g/cm³ at 25°C
- Melting Point: -38.83°C
- Boiling Point: 356.73°C
- Vapor Pressure: 0.00185 mmHg at 25°C
- Solubility: Insoluble in water
Packaging
- Sealed glass or PTFE bottles for laboratory use (small quantities)
- Special steel flasks (e.g., 34.5 kg) for bulk
- All packaging should be airtight, leakproof, and clearly labeled
Applications
- Analytical chemistry and standards
- Calibration of scientific instruments
- High-precision electronic manufacturing
- Research and laboratory experiments
Compliance & Documentation
- Certificate of Analysis (COA): Provided with each batch, listing actual impurity levels
- Safety Data Sheet (SDS): Supplied upon request, detailing hazard and handling information
- Regulatory Compliance: Meets international and local standards for high-purity mercury
Safety Notes
- Extremely toxic. Handle only with proper protective equipment, in well-ventilated areas or fume hoods.
- Storage must comply with hazardous substance regulations.
- Disposal requires licensed hazardous waste services.
For trustworthy supply, technical support, and regulatory assistance in South Africa, contact licensed suppliers such as Brand Chemical Supplies.

