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Merck
CN

11044

Aluminum sulfate octadecahydrate

puriss., meets analytical specification of Ph. Eur., BP, 100-110%, 51.0-59.0% Al2(SO4)3 basis

Synonym(s):

Aluminum sulfate hydrate

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About This Item

Linear Formula:
Al2(SO4)3 · 18H2O
CAS Number:
Molecular Weight:
666.43
PubChem Substance ID:
UNSPSC Code:
12352302
NACRES:
NA.21
EC Number:
233-135-0
Assay:
100-110%
Form:
crystals or chunks
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Quality Level

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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pictograms

Corrosion

signalword

Danger

hcodes

Hazard Classifications

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

Storage Class

8B - Non-combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable



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Synthesis and light emitting properties of polymeric metal complex dyes based on hydroxyquinoline moiety.
Kim S-H, et al.
Dyes and Pigments, 55(2), 91-97 (2002)
Hydrolysis products of water treatment chemical aluminium sulfate octadecahydrate by electrospray ionization mass spectrometry.
Sarpola A, et al.
Polyhedron, 26(12), 2851-2858 (2007)
Nak Cheon Jeong et al.
Langmuir : the ACS journal of surfaces and colloids, 21(13), 6038-6047 (2005-06-15)
Various MX (M = Cd, Zn, and Mn, X = S and Se) semiconductor quantum dots (QDs) were prepared in zeolite Y. While the QDs are readily expelled from zeolite interior upon exposure of the MX QD-incorporating zeolite Y ([MX]-Y)



Global Trade Item Number

SKUGTIN
104420010004022536051567
83379-10G04061833005606
221090-500G04061838776921
104420100004022536051574
104428005004022536051673
104428025004022536051680
83379-50G04061833005613
203785-25G04061838766335
221090-100G04061838776907
221090-25G04061838776914
11044-2.5KG04061833635940
11044-1KG04061838696571
11044-6X1KG04061833635964