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202614

Sigma-Aldrich

Aluminum sulfate

99.99% trace metals basis

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Synonym(s):
Aluminium sulphate, Aluminum alum, Dialuminum sulfate, dialuminum trisulfate
Linear Formula:
Al2(SO4)3
CAS Number:
Molecular Weight:
342.15
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

99.99% trace metals basis

form

powder and chunks

impurities

≤150.0 ppm Trace Metal Analysis

mp

770 °C (dec.) (lit.)

density

2.71 g/mL at 25 °C (lit.)

application(s)

battery manufacturing

SMILES string

[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O

InChI

1S/2Al.3H2O4S/c;;3*1-5(2,3)4/h;;3*(H2,1,2,3,4)/q2*+3;;;/p-6

InChI key

DIZPMCHEQGEION-UHFFFAOYSA-H

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1 of 4

This Item
A0843227617237086
vibrant-m

202614

Aluminum sulfate

-
vibrant-m

A0843

Aluminum sulfate

-
vibrant-m

227617

Aluminum sulfate octadecahydrate

-
vibrant-m

237086

Aluminum potassium sulfate dodecahydrate

Essential Grade
assay

99.99% trace metals basis

assay

-

assay

≥97%, 98.0-102.0% (ACS specification)

assay

≥98%, 98.0-102.0% (ACS specification)

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

density

2.71 g/mL at 25 °C (lit.)

density

1.69 g/mL at 25 °C (lit.)

density

-

density

1.757 g/mL at 25 °C (lit.)

mp

770 °C (dec.) (lit.)

mp

-

mp

-

mp

92 °C (lit.)

impurities

≤150.0 ppm Trace Metal Analysis

impurities

-

impurities

≤0.01% insolubles

impurities

≤0.005% insolubles

General description

Aluminum sulfate is one of the components of Nuclear Fast Red solution.It is a coagulant used for arsenate removal from water.

Application

Aluminum sulfate has been used in the preparation of the nuclear-fast red solution for red nuclear counterstaining in histology and cytology protocols. It may be used as a catalyst for the conversion of lactic acid to acetaldehyde via decarbonylation.
Aluminum sulfate may be used to form a porous composite adsorbent with graphene hydrogel to be used for fluoride removal from water.

pictograms

Corrosion

signalword

Danger

Hazard Classifications

Eye Dam. 1 - Met. Corr. 1

Storage Class

8B - Non-combustible, corrosive hazardous materials

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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Decarbonylation of lactic acid to acetaldehyde over aluminum sulfate catalyst.
Zhai Z, et al.
Industrial & Engineering Chemistry Research, 53(25), 10318-10327 (2014)
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The investigational vaccine, NDV-3, contains the N-terminal portion of the Candida albicans agglutinin-like sequence 3 protein (Als3p) formulated with an aluminum hydroxide adjuvant in phosphate-buffered saline. Preclinical studies demonstrated that the Als3p vaccine antigen protects mice from oropharyngeal, vaginal and
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A statistical experiment design approach for arsenic removal by coagulation process using aluminum sulfate.
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