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202614

Sigma-Aldrich

Aluminum sulfate

99.99% trace metals basis

Synonym(s):

Aluminium sulphate, Aluminum alum, Dialuminum sulfate, dialuminum trisulfate

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About This Item

Linear Formula:
Al2(SO4)3
CAS Number:
10043-01-3
Molecular Weight:
342.15
EC Number:
233-135-0
MDL number:
MFCD00003423
UNSPSC Code:
12352302
PubChem Substance ID:
24852105
NACRES:
NA.23

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

Related Categories

General description

Aluminum sulfate is a white crystalline solid that is highly soluble in water. It is thermally stable and has the ability to act as a coagulant and flocculant. It is widely used in the field of solar cells, water treatment and batteries.

Application

Aluminum sulfate can be used:
  • As a surface modification agent/co-adsorbent for dye sensitizers in solar cell. It improves the surface of photoelectrode and purify dye solution through flocculation.
  • As an electrolyte additive for lead-acid batteries to effectively inhibit the passivation of electrodes. It helps to slow down cathode sulfation and improve the reversibility of the electrode reaction.
  • To prepare aqueous electrolyte for high energy aluminum electrochemical cells. It helps to form artificial solid electrolyte interphase to attain high specific energy.

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H290,H318

Hazard Classifications

Eye Dam. 1 - Met. Corr. 1

Storage Class Code

8B - Non-combustible corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Clint S Schmidt et al.
Vaccine, 30(52), 7594-7600 (2012-10-27)
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
Decarbonylation of lactic acid to acetaldehyde over aluminum sulfate catalyst.
Zhai Z, et al.
Industrial & Engineering Chemistry Research, 53(25), 10318-10327 (2014)
A statistical experiment design approach for arsenic removal by coagulation process using aluminum sulfate.
Baskan MB and Pala A
Desalination, 254(1), 42-48 (2010)
An easy, reproducible and cost-effective method for andrologists to improve the laboratory diagnosis of non-obstructive azoospermia: a novel microcentrifugation technique.
International Brazilian Journal of Urology : Official Journal of the Brazilian Society of Urology, 42(1), 132-138 (2016)
An easy, reproducible and cost-effective method for andrologists to improve the laboratory diagnosis of non-obstructive azoospermia: a novel microcentrifugation technique
Monteiro RAC, et al.
International Brazilian Journal of Urology : Official Journal of the Brazilian Society of Urology, 42(1), 132-138 (2016)
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