227617

Aluminum sulfate octadecahydrate

≥97%

• Synonym(s): Aluminum sulfate hydrate
• Linear Formula: Al₂(SO₄)₃ · 18H₂O
• CAS Number: 7784-31-8
• Molecular Weight: 666.43
• EC Number: 233-135-0
• UNSPSC Code: 12352302
• PubChem Substance ID: 24853643
• NACRES: NB.24

Properties

• assay: ≥97%; 98.0-102.0% (ACS specification)
• form: chunks or granules; crystalline powder; powder or crystals
• reaction suitability: reagent type: catalyst; core: aluminum
• impurities: ≤0.01% insolubles
• anion traces: chloride (Cl^-): ≤0.005%
• cation traces: Ca: 0.01%; Fe: ≤0.002%; K: 0.005%; Mg: 0.002%; Na: 0.02%; heavy metals (as Pb): ≤0.001%
• SMILES string: O=S(O)(O)=O.[AlH2][AlH2].O
• InChI: 1S/2Al.3H2O4S.9H2O/c;;3*1-5(2,3)4;;;;;;;;;/h;;3*(H2,1,2,3,4);9*1H2/q2*+3;;;;;;;;;;;;/p-6
• InChI key: KFCWRPFNNIEZRY-UHFFFAOYSA-H

Description

General description

Aluminum sulfate is widely used as a coagulant in water treatment.

Application

Aluminum sulfate octadecahydrate has been used in the preparation of Gill′s no. 2 hematoxylin stain.

Safety Information

• pictograms: GHS05
• signalword: Danger
• hcodes: H290,H314
• pcodes: P234 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• Storage Class: 8B - Non-combustible corrosive hazardous materials
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable