Product
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Antimony Mercury Oxide (Sb2Hg2O7)/ Red Liquid Mercury/Manufacturer
- Brand：Kael
- Model：34.5kg/flask
- Purity：99.999% (5N)
- Cas：7440-36-0
- Createtime： 2026-08-21
- Updatetime： 2026-09-02
Product Details
| Sb2O7Hg2 | Hg |
| useage | Mainly used in rocket, missile, military prospecting areas. |
| deliveryInfo | |
| appearance | Cherry Red metal liquid |
| aliasen | |
| supplyCapacity | 1000KG/Day |
| Red Hg | Mercury |
| harbor | Qingdao, China |
| minorder | 10G |
| Antimony Mercury Oxide | 7440-36-0 |
| Red Mercury | Liquid Mercury |
1. Basic Information
Name: Antimony Mercury Oxide
Alias: Mercury pyroantimonate, Red mercury, Oxystybate
CAS No.: 20720-76-7
Molecular Formula: Sb2Hg2O7
Molecular Weight: 756.80
2. Physical and Chemical Properties
Physical Properties
- Appearance: Cherry-red crystalline solid/powder; high-purity grade shows semi-liquid viscous form under room temperature
- Odor: Metallic faint mercury odor
- Solubility: Insoluble in water, ethanol and all common organic solvents; reacts slowly with dilute strong acid to release mercury ions
- Density: 9.5–10.5 g/cm3
- Melting Point: Decomposes at about 700 °C without stable melting point
- Hygroscopicity: Slightly hygroscopic, adsorbs trace moisture in humid air
- Crystal Structure: Orthorhombic pyroantimonate crystal lattice, composed of Hg2+ and Sb2O74- pyroantimonate groups
Chemical Properties
- Molecular structure: Inorganic double oxide salt formed by Hg cation and pyroantimonate anion Sb2O74-
- Acid decomposition: Reacts with hydrochloric acid, sulfuric acid to generate soluble mercury salts, antimony salts and oxygen
- Thermal decomposition: Decomposes above 700 °C into mercury oxide, antimony trioxide and oxygen gas
- Redox characteristic: Mercury ion inside can be reduced to elemental mercury by strong reducing agents; antimony(V) can be reduced to Sb(III)
- Photostability: Sensitive to strong ultraviolet light; long-term light exposure fades red color and precipitates mercury suboxide
- Compatibility: Incompatible with reducing agents, strong acids, ammonia water and alkaline sulfide solutions
3. Main Application Fields
1. Special Laboratory Research Reagent (Core Application)
- Standard reference substance for mercury-antimony heavy metal co-detection in environmental soil and water samples
- Substrate material for nuclear physics laboratory neutron release experimental research
- Raw material for synthesis of high-purity antimony-mercury functional inorganic crystals
2. Military & Aerospace Special Intermediate
Special high-density inorganic raw material for military signal device and rocket ignition auxiliary components
3. Rare Metal Functional Material Precursor
Doping precursor for high-density scintillation crystal and infrared optical glass manufacturing
4. Mineral Exploration Auxiliary Reagent
Trace heavy metal indicator reagent for underground mineral prospecting testing
4. Quality Specification Table
| Test Item | Standard Index |
|---|---|
| CAS Number | 20720-76-7 |
| Molecular Formula | Sb2Hg2O7 |
| Molecular Weight | 756.80 |
| Appearance | Cherry red crystalline solid |
| Total Purity | Industrial Grade ≥99.0%; High-purity Lab Grade ≥99.99% |
| Water Content (KF) | ≤0.15% |
| Mercury Impurity (Free Hg) | ≤10 ppm |
| Heavy Metals (Pb, As) | ≤5 ppm |
| Packaging | Sealed metal tank lined with PE film, nitrogen-filled vacuum aluminum foil inner bag |
| Storage Condition | Hermetic, light-proof, cool dry warehouse below 20 °C; isolate acid, reducing substances and air |
| Transportation Requirement | Highly toxic heavy metal inorganic solid, Class 6.1 toxic goods sealed dedicated transport |
| Shelf Life | 18 months under intact nitrogen-filled sealed packaging |
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