Date published: 2026-5-7

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Sodium aluminate (CAS 11138-49-1)

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Alternate Names:
Sodium aluminate is also known as Aluminum sodium oxide and Sodium aluminum oxide.
Application:
Sodium aluminate is an inorganic reagent useful as a catalyst for the isomerization of alkenes and amines.
CAS Number:
11138-49-1
Molecular Weight:
81.97
Molecular Formula:
NaAlO2
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Sodium aluminate is an inorganic compound consisting of sodium and aluminate ions. It presents as a white, crystalline solid with a molecular weight of 81.99 g/mol. In the chemical industry, sodium aluminate finds extensive application for various purposes. It serves as a flocculant, corrosion inhibitor, and decolorizing agent. Additionally, it plays a role in wastewater treatment, acts as a catalyst in polymer production, and contributes to the manufacture of aluminum alloys. Moreover, the potential biomedical applications of sodium aluminate have been subject to scientific investigation. Furthermore, sodium aluminate holds promise as a diagnostic tool, as it enables the detection of specific molecules within a sample. Its involvement in nanoparticle production has also been explored, as nanoparticles possess diverse biomedical applications. While the precise mechanism of action of sodium aluminate remains incompletely understood, it is hypothesized that its flocculating properties stem from the ionic bonds formed between sodium and aluminate ions. Additionally, it is believed that the aluminate ions can interact with proteins, peptides, and nucleic acids, facilitating their delivery into cells.


Sodium aluminate (CAS 11138-49-1) References

  1. Gelation of sodium silicate; effect of sulfuric acid, hydrochloric acid, ammonium sulfate, and sodium aluminate.  |  MERRILL, RC. and SPENCER, RW. 1950. J Phys Colloid Chem. 54: 806-12. PMID: 15422536
  2. Additive action on boehmite precipitation in sodium aluminate solution.  |  Dash, B., et al. 2010. Dalton Trans. 39: 9108-11. PMID: 20733994
  3. Sodium aluminate as catalyst for transesterification of waste mutton fat.  |  Mutreja, V., et al. 2012. J Oleo Sci. 61: 665-9. PMID: 23138256
  4. Electronic and Chemical State of Aluminum from the Single- (K) and Double-Electron Excitation (KLII&III, KLI) X-ray Absorption Near-Edge Spectra of α-Alumina, Sodium Aluminate, Aqueous Al(3+)·(H2O)6, and Aqueous Al(OH)4(-).  |  Fulton, JL., et al. 2015. J Phys Chem B. 119: 8380-8. PMID: 26036606
  5. Lactulose production from efficient isomerization of lactose catalyzed by recyclable sodium aluminate.  |  Wang, M., et al. 2017. Food Chem. 233: 151-158. PMID: 28530560
  6. Removal of sulfate from wet FGD wastewater by co-precipitation with calcium hydroxide and sodium aluminate.  |  Yu, J., et al. 2018. Water Sci Technol. 77: 1336-1345. PMID: 29528321
  7. Preparation of high-purity lactulose through efficient recycling of catalyst sodium aluminate and nanofiltration: a pilot-scale purification.  |  Wang, M., et al. 2018. J Sci Food Agric. 98: 5352-5360. PMID: 29660110
  8. Production of Glycerol Carbonate from Glycerol over Templated-Sodium-Aluminate Catalysts Prepared Using a Spray-Drying Method.  |  Rittiron, P., et al. 2019. ACS Omega. 4: 9001-9009. PMID: 31459988
  9. Performance of chemically resistant polyurea reverse osmosis membrane in the treatment of highly alkaline industrial wastewater containing sodium aluminate.  |  Nazia, S., et al. 2020. Water Sci Technol. 82: 2259-2270. PMID: 33339782
  10. Effect of Corrosion Temperature on the Corrosion of Q235 Steel and 16Mn Steel in Sodium Aluminate Solutions.  |  Quan, B., et al. 2021. ACS Omega. 6: 25904-25915. PMID: 34660953
  11. Enhanced phosphate removal with fine activated alumina synthesized from a sodium aluminate solution: performance and mechanism.  |  Wu, G., et al. 2022. RSC Adv. 12: 4562-4571. PMID: 35425491
  12. A green approach of preparation of fine active alumina with high specific surface area from sodium aluminate solution.  |  Wu, G., et al. 2019. RSC Adv. 9: 5628-5638. PMID: 35515928
  13. Preparation of CaCO3/Al(OH)3 Composites via Heterogeneous Nucleation.  |  Xu, Y., et al. 2023. Materials (Basel). 16: PMID: 36676234

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Sodium aluminate, 2.5 kg

sc-224288
2.5 kg
$140.00

Sodium aluminate, 5 kg

sc-224288A
5 kg
$162.00

Sodium aluminate, 10 kg

sc-224288B
10 kg
$321.00

Sodium aluminate, 20 kg

sc-224288C
20 kg
$630.00