Dodecylamine (DDA)
CAS Number: 124-22-1
Dodecylamine (DDA) is a primary amine cationic collector widely used in the flotation of silicates, quartz, and aluminosilicate gangue minerals. Its twelve-carbon chain provides the hydrophobic character necessary for effective silicate collection while remaining selective against oxide minerals at controlled pH. DDA is commonly employed in potash, iron ore reverse flotation, and feldspar separation processes.
Technical Specifications
| appearance | White to off-white flakes or pellets |
| purity (%) | ≥97 |
| melting point (°C) | 26-30 |
| amine value (mg KOH/g) | 270-285 |
Applications
- Quartz and silicate mineral flotation in potash processing
- Reverse silica flotation in iron ore beneficiation
- Feldspar concentration and glass sand purification
- Phosphate rock flotation (gangue rejection)
- Aluminosilicate gangue removal from bauxite
Key Features
- Strong cationic collector for quartz and silicate minerals
- High purity grade ensures consistent flotation performance
- Effective at room temperature with simple acid activation
- Low water solubility requires acid dissolution for use
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CAS Number
124-22-1
Category
Mining / Flotation ChemicalsAvailability
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