Aluminum sulfate octadecahydrate
SIGALD/11044 - puriss., meets analytical specification of Ph. Eur., BP, 100-110%, 51.0-59.0% Al2(SO4)3 basis
Synonym: Aluminum sulfate hydrate
CAS Number: 7784-31-8
Empirical Formula (Hill Notation): Al2S3O12· 18H2O
Molecular Weight: 666.43
EC Number: 233-135-0
Linear Formula: Al2(SO4)3 · 18H2O
Product Type: Chemical
| anion traces | chloride (Cl-): ≤50 mg/kg |
| assay | 100-110% |
| cation traces | As: ≤3 mg/kg |
| Fe: ≤50 mg/kg | |
| concentration | 51.0-59.0% Al2(SO4)3 |
| form | crystals or chunks |
| grade | puriss. |
| impurities | residual solvents, complies |
| ≤0.002% heavy metals (as Pb) | |
| ≤0.003% ammonium (NH4) | |
| ≤0.2% sub.not precip.b.NH4OH(SO4) | |
| InChI | 1S/2Al.3H2O4S.9H2O/c;;3*1 |
| InChI key | KFCWRPFNNIEZRY-UHFFFAOYSA |
| pH | 2.5-4.0 (20 °C, 2%) |
| quality | meets analytical specification of Ph. Eur., BP |
| Quality Level | 200  |
| SMILES string | O=S(O)(O)=O.[AlH2][AlH2]. |
| suitability | complies for appearance of solution |
| Application: | Aluminum sulfate octadecahydrate is used: • As a trace water source in the synthesis of cancrinite zeolite from geophagic clay. • In the solvent free synthesis of ZSM-5 Zeolites from rice husk silica. • In the preparation of polymeric metal complex dyes. |
| General description: | Aluminum sulfate octadecahydrate (Al2(SO4)3.18H2O) is a hydrated aluminum salt. It is used as a catalyst and cross-linker during chemical reactions. Aluminum sulfate octadecahydrate is also used as a coagulating agent/flocculating agent in the purification of drinking water and wastewater treatment plants. It is also used in the paper industry for sizing. |
| Symbol |  GHS05 |
| Signal word | Danger |
| Hazard statements | H290 - H318 |
| Precautionary statements | P280 - P305 + P351 + P338 + P310 |
| 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 | 100-110% |
| UNSPSC | 12352300 |