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Molybdenum Target Chemical Properties
Molybdenum targets chemical properties are stable. At room temperature, it in air or water is stable, but when the temperature up to 400 ℃ it will occur slightly oxidized. Severe oxidation to produce MoO3 when the temperature reached 600 ℃ occurs. Hydrochloric acid, hydrofluoric acid, nitric acid and dilute alkali solution does not react with the molybdenum target, but it can dissolve in nitric acid, aqua regia or hot sulfuric acid solution.
| Medium | Experiment Condition | Reaction Condition |
| Water | Non-corroding | |
| HF | Cold, hot | Non-corroding |
| HF+H2SO4 | Cold | Non-corroding |
| Hot | Slight corrosion | |
| HF+aqua regia | Cold | Slight corrosion |
| Hot | Rapid corrosion | |
| HF+HNO3 | Cold, hot | Rapid corrosion |
| Ammonium hydroxide | Non-corroding | |
| Molten caustic soda | In air | Slight corrosion |
| Oxidant KNO3, KNO2,KclO3,PbO2 | Rapid corrosion | |
| Boron | High temperature | Generate boride |
| Carbon | Above 1100℃ | Generate carbide |
| Silicon | Above 1100℃ | Generate silicide |
| Phosphorus | To maximum temperature | Non-corroding |
| Sulfur | Above 440℃ | Generate sulfide |
| Iodine | Under 790℃ | Non-corroding |
| Bromine | Under 840℃ | Non-corroding |
| Chloride | Above 230℃ | Active corrosion |
| Fluorine | Room temperature | Active corrosion |
| Air and oxygen | 400℃ | Starts to oxidize |
| 600℃ | Intense oxidant | |
| Above 700℃ | MoO3 sublimation | |
| Hydrogen and inert gas | To maximum temperature | No reaction |
| CO | Above 1400℃ | Generate carbide |
| CO2 | 1200℃ | oxidation |
| Hydrocarbon | 1100℃ | Generate carbide |
| Al Ni Fe Co Sb | Molten mass | Active corrosion |
| Zn | Molten mass | Slight corrosion |
| Bi | Molten mass | Highly corrosion |
| Glass | Molten mass | Highly corrosion |
| Refractory oxide Al2O3,ZrO2,BeO,MgO,ThO2 | Under 1700℃ | Non-corroding |
| Nitrogen | Above 1100℃ | Nitridation reaction |
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