Aluminum Hydroxide (ATH) CAS 21645-51-2 Powder
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Azelaic acid (AzA) CAS 123-99-9 powder flake
Aluminum hydroxide (ATH) also known as Aluminium trihydroxide Aluminium(III) hydroxide Hydrated alumina Hydrargillite Aluminic acid, is an inorganic amphoteric compound. This compound carries CAS 21645-51-2 and has molecular formula Al(OH)₃. Aluminum hydroxide is REACH registered, and MSDS download is available for procurement reference.
Aluminum hydroxide appears as white odorless crystalline powder. It is practically insoluble in water and ethanol, soluble in strong acid and strong alkali. Density is about 2.42 g/cm³. It decomposes endothermically at 220–300°C, releasing water vapor. Good thermal stability under normal storage environment.
Properties:
| Item | Standard |
|---|---|
| Al(OH)₃ Purity | ≥99.6% |
| SiO₂ | ≤0.05% |
| Fe₂O₃ | ≤0.02% |
| Na₂O | ≤0.25% |
| Loss on Ignition | 33.5–35.0% |
| Moisture | ≤0.2% |
Main Uses
Aluminum hydroxide (ATH) serves as halogen-free flame retardant and smoke suppressant for cable materials, rubber, plastic and solid surface products. It acts as raw material for alumina, aluminium salt, ceramic and glass manufacturing. It can also be used as pharmaceutical antacid raw material, vaccine adjuvant and catalyst carrier.
FAQ
Q1: Can Aluminum hydroxide (ATH) be used for halogen-free flame retardant formulation? A1: Yes. Aluminum hydroxide (ATH) is a common halogen-free flame retardant filler with excellent smoke suppression performance.
Q2: What is the decomposition characteristic of Aluminum hydroxide (ATH) during heating? A2: Aluminum hydroxide (ATH) decomposes endothermically above 220°C, releases water vapor to cool burning zone and dilute flammable gas.
Q3: Which safety file can be submitted for customs clearance of Aluminum hydroxide (ATH)? A3: MSDS download service is provided, the document supports overseas customs inspection and safety assessment.
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