Aluminum sulfate
ALDRICH/202614 - 99.99% trace metals basis
Synonym: Aluminium sulphate; Aluminum alum; Dialuminum sulfate; dialuminum trisulfate
CAS Number: 10043-01-3
Empirical Formula (Hill Notation): Al2O12S3
Molecular Weight: 342.15
EC Number: 233-135-0
MDL Number: MFCD00003423
Linear Formula: Al2(SO4)3
Product Type: Chemical
| assay | 99.99% trace metals basis |
| density | 2.71 g/mL at 25 °C (lit.) |
| form | powder and chunks |
| impurities | ≤150.0 ppm Trace Metal Analysis |
| InChI | 1S/2Al.3H2O4S/c;;3*1-5(2, |
| InChI key | DIZPMCHEQGEION-UHFFFAOYSA |
| mp | 770 °C (dec.) (lit.) |
| Quality Level | 200 ![]() |
| reaction suitability | core: aluminum |
| SMILES string | [Al+3].[Al+3].[O-]S([O-]) |
| Application: | Aluminum sulfate can be used: • As a surface modification agent/co-adsorbent for dye sensitizers in solar cell. It improves the surface of photoelectrode and purify dye solution through flocculation. • As an electrolyte additive for lead-acid batteries to effectively inhibit the passivation of electrodes. It helps to slow down cathode sulfation and improve the reversibility of the electrode reaction. • To prepare aqueous electrolyte for high energy aluminum electrochemical cells. It helps to form artificial solid electrolyte interphase to attain high specific energy. |
| General description: | Aluminum sulfate is a white crystalline solid that is highly soluble in water. It is thermally stable and has the ability to act as a coagulant and flocculant. It is widely used in the field of solar cells, water treatment and batteries. |
| Packaging: | 5, 25, 100 g in poly bottle |
| Symbol | GHS05 |
| Signal word | Danger |
| Hazard statements | H290 - H318 |
| Precautionary statements | P234 - P280 - P305 + P351 + P338 - P390 |
| Hazard Codes | Xi |
| Risk Statements | 41 |
| Safety Statements | 26-39 |
| RIDADR | UN3260 - class 8 - PG 3 - RQ - Corrosive solid, acidic, inorgani |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | 99.99% trace metals basis |
| mp | 770 °C (dec.) (lit.) |
| Density | 2.71 g/mL at 25 °C (lit.) |
| UNSPSC | 12352302 |


