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368458 Sigma-Aldrich

Aluminum sulfate hydrate




Related Categories Aluminum Salts, Essential Chemicals, Research Essentials, Salts
assay   98%
composition   Degree of hydration, 14-18
density   1.69 g/mL at 25 °C(lit.)


Other Notes

A -D suffix exists for administrative purposes only.
All -D packages are 100% the same product, same quality, same specification as the package sizes previously sold without a -D.


2.5 kg in poly bottle

500 g in poly bottle


Aluminum sulfate hydrate was used in the synthesis of new high crystalline zeolite materials.1
It may be used in the synthesis of Al-doped ZnO nanorods2 and spherical alumina powders.3

General description

Aluminum sulfate hydrate is a hydrated aluminum salt. Aluminum sulfate is widely used in oil and fat processing, paper manufacturing and as a flocculant for water treatment.4 The kinetics of its dehydration by thermal decomposition has been investigated.5 It is one of the components of hematoxylin solution.6 Spherical particles of aluminum sulfate hydrate has been synthesized by prilling technique.7

Price and Availability

Suggested Laboratory Gloves

Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.

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Aluminum sulfate

meets USP testing specifications

Aluminum sulfate

99.99% trace metals basis

Aluminum sulfate hexadecahydrate

purum p.a., ≥95.0% (KT)

Aluminum sulfate hydrate

ACS reagent, ≥98%

Aluminum sulfate hydrate

99.998% trace metals basis

Safety & Documentation

Safety Information

GHS05  GHS05
Signal word 
Hazard statements 
Precautionary statements 
Personal Protective Equipment 
UN 3077 9 / PGIII
WGK Germany 


Certificate of Analysis

Certificate of Origin

Protocols & Articles

Peer-Reviewed Papers


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1. Structural study on the Al distribution in zeolites Nu-6 (1) and Nu-6 (2). Galve A et al. Microporous Mesoporous Mater. 145(1), 211-216, (2011)

2. Hydrothermal synthesis of Al-doped ZnO nanorod arrays on Si substrate. Yun S, et al. Physica B: Cond. Mat. 405(1), 413-419, (2010)

3. Gamma-to-Alpha Transformation in Spherical Aluminum Oxide Powders. Tucker DS and Bleier A. J. Am. Ceram. Soc. 68(7), C-163, (1985)

4. Thermal decomposition kinetics of aluminum sulfate hydrate. Cilgi GK and Cetisli H. J. Therm. Anal. Calorim. 98(3), 855-861, (2009)

5. Kinetics of the multistage dehydration of aluminum sulfate hydrate. Chou KS and Soong CS. Thermochim. Acta 81, 305-310, (1984)

6. In vivo implantation of tissue-engineered human nasal septal neocartilage constructs: a pilot study. Chang AA, Reuther MS, Briggs KK, et al. Otolaryngol. Head Neck Surg. 146(1), 46-52, (2012)


7. Prilling of aluminum sulfate hydrates. Ornek D, et al. J. Chem. Technol. Biotechnol. 75(8), 689-694, (2000)

Merck 14,366

RegBook 1 (3), 3437:H

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