4A Zeolite
Zeolites, with the general formula Na(AlO2)(SiO2)x·yH2O, are crystalline aluminosilicates with a porous structure. This structure allows them to adsorb certain molecules and exchange ions, which is why they are used in water softening, drying, and separation processes. Zeolites are generally produced from sodium aluminate and sodium silicate under controlled reaction conditions.
- CAS No.: 1318-02-1
- HS Code: 28421000 / 38249999
- Molecular Formula: Na12Al12Si12O48·27H2O
- Product Type: Chemical Additive
- Packaging: 25kg/bag, 40kg/bag, 650kg/bag, 700kg/bag
| Ignition Loss (800°C, 60 min) | ≤22% |
| Ca ion exchange capacity mgCaCO3/g (dry) | ≥295 |
| pH (suspension 1%, 25°C) | ≤11 |
| White grade (w=y) | ≥95% |
| D50 (Average particle size) | 2–5 μm (Average 3 μm) |
| Less than 4 μm | ≥90% |
| Less than 10 μm | ≥99% |
| 325 mesh sieve residue (wet sieve), more than 45 μm | ≤0.5% |
| Al3+ | ≥18% |
| Bulk density | 300–600 g/L |
| Angle of repose | 65° |
Strong Ion Exchange Capacity
Helps soften water effectively and improves the cleaning performance of detergent formulations.
High Whiteness
Delivers a clean white appearance with low impurity content, helping enhance the visual quality of detergent products.
Fine Particle Size
Helps reduce residue on fabrics during use and improves formulation compatibility.
4A zeolite is a type of synthetic aluminosilicate which is generally used as a builder in detergents. Its ability to carry out ion exchange helps to reduce the hardness of water, a property that makes it especially suitable for laundry powders and other detergent formulations. The production process of 4A Zeolite begins by preparing the solution needed to form the zeolite gel. The gel is then left to age before it goes through hydrothermal crystallization, the stage in which the zeolite crystals develop. Once crystallization has taken place, the process moves on to filtration and washing, followed by solid-liquid separation, flash drying, grinding, and screening in order to get the required powder. Before it is packaged, the finished 4A Zeolite undergoes quality control, focusing on particle size, moisture content, whiteness, and ion-exchange performance.
- Laundry Powder
- Phosphate-Free Detergents
