Quality Segment
grade
puriss.
assay
100-110%
form
crystals or chunks
quality
meets analytical specification of Ph. Eur., BP
concentration
51.0-59.0% Al2(SO4)3
impurities
residual solvents, complies, ≤0.002% heavy metals (as Pb), ≤0.003% ammonium (NH4), ≤0.2% sub.not precip.b.NH4OH(SO4)
pH
2.5-4.0 (20 °C, 2%)
anion traces
chloride (Cl-): ≤50 mg/kg
cation traces
As: ≤3 mg/kg, Fe: ≤50 mg/kg
suitability
complies for appearance of solution
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
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.
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.
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signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
存储类别
8B - Non-combustible corrosive hazardous materials
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
