Aluminium hydroxide , 99.6%，1-3μm , 21645-51-2
Synonym(s):
Aluminium hydroxide;Hydrargillite
CAS NO.：21645-51-2
Empirical Formula: AlH3O3
Molecular Weight: 78
MDL number: MFCD00003420
EINECS: 244-492-7
| Pack Size | Price | Stock | Quantity |
| 1KG | RMB140.00 | In Stock |
|
| 2.5kg | RMB271.20 | In Stock |
|
| others | Enquire |
PRODUCT Properties
| Melting point: | 300℃ |
| Boiling point: | 2980℃[at 101 325 Pa] |
| 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 |
| Specific Gravity | 2.42 |
| color | White |
| PH | 8-9 (100g/l, H2O, 20℃)(slurry) |
| Odor | Odorless |
| PH Range | >7 |
| Water Solubility | insoluble |
| Crystal Structure | Monoclinic |
| Merck | 14,342 |
| Solubility Product Constant (Ksp) | pKsp: 32.89 |
| Exposure limits | ACGIH: TWA 1 mg/m3 |
| Dielectric constant | 2.2（Ambient） |
| 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) |
Description and Uses
Aluminum hydroxide, insoluble in water, soluble in dilute mineral acids and alkali hydroxides (4 % suspension in water), white, amorphous powder. For other relevant properties and production, see→Aluminum Oxide, Chap. 1.1. Available as Al(OH)3·nH2O (algedrate) and algedrate hexitol complex.
As absorbent, in chromatography, manufacturing of glass, paper, inks, ceramics, lubricants, cosmeticsAluminum hydroxide is used as a desiccant powder, filler in paper, plastics, rubber and cosmetics. It is used as a smoke suppressant and mordant dye. It is also used in drugs as antacid and antihyperphosphatemic. It is also used as a Claus catalyst support for waterproof fabrics. It is an important starting material for the preparation of other aluminum compounds, calcined alumina, aluminum sulfate, polyaluminum chloride, zeolites, sodium aluminate, activated alumina and aluminum nitrate. In addition, it is used as a fire retardant.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H315-H319-H335 |
| Precautionary statements | P261-P280a-P304+P340-P305+P351+P338-P405-P501a |
| 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 |
