Products Description
Industrial-grade aluminum hydroxide features purity ≥ 99%, appears as white crystalline powder, is odorless and amphoteric. It decomposes at 300℃, with a boiling point of 2980℃. Vapor pressure is below 0.1hPa at 25℃, and relative density is 2.42 at 20℃. It is slightly soluble in water, dissolves in acids and strong bases, and does not dissolve in ethanol. The product is stable under normal conditions and incompatible with strong bases.
Chemical Properties
| Item | Value |
| Melting point | 300℃ |
| Boiling point | 2980℃[at 101 325 Pa] |
| bulk density | ~90g/100 mL |
| density | 2.42 g/cm3 at 20 °C |
| vapor pressure | <0.1 hPa (20 °C) |
| refractive index | Average refractive index 1.57-1.59 |
| storage temp | Store at +5°C to +30°C |
| solubility | 0.0015g/l |
| form | colloidal suspension |
| color | White |
| Specific Gravity | 2.42 |
| Odor | Odorless |
| PH | 8-9 (100g/l, H2O, 20℃)(slurry) |
| PH Range | >7 |
| Water Solubility | insoluble |
| Crystal Structure | Monoclinic |
| Merck | 14,342 |
| Solubility Product Constant (Ksp) | pKsp 32.89 |
| Dielectric constant | 2.2（Ambient） |
| Exposure limits | ACGIH TWA 1 mg/m3 |
| Stability | Stable Incompatible with strong bases |
| LogP | -1.380 (est) |
| CAS DataBase Reference | 21645-51-2(CAS DataBase Reference) |
| EPA Substance Registry System | Aluminum hydroxide (21645-51-2) |
Safety Information
| Item | Value |
| Hazard Codes | Xi |
| Risk Statements | 36 |
| Safety Statements | 26-36 |
| WGK Germany | - |
| RTECS | BD0940000 |
| TSCA | Yes |
| HS Code | 28183000 |
| Hazardous Substances Data | 21645-51-2(Hazardous Substances Data) |
| Toxicity | TDLo oral in child 79gm/kg/2Y-I |
Product Application
Aluminum hydroxide offers multiple strengths including large-scale production capacity, sufficient raw material supply, high product purity and favorable acid solubility. For these reasons, it serves as a vital raw material for manufacturing various aluminum salts such as barium aluminate and aluminum sulfate.
Supply & Delivery
Fast delivery time
Inventory: 2-3 working days
New production: 7-10 working days
