About Aluminates

Aluminate anion

Aluminates are compounds containing an oxyanion of aluminum. Since aluminum lives at the border between metallic and non-metallic elements on the periodic table, compounds of aluminum often have unique properties. Aluminum oxide is amphoteric and dissolves in both bases and acids. When dissolved in bases it forms the aluminate ion. Minerals like chrysoberyl are sometimes called aluminates, although they are usually classified as mixed oxides. As minerals, aluminates are much less common than aluminosilicates.

Sodium aluminate finds applications in a number of settings, including in water treatment and in the papermaking industry. However, the majority of sodium aluminate produced is used for the manufacture of sodium aluminosilicates or titanium dioxide for use in pigments and coatings, a process which improves the pigment's resistance to ultraviolet light. In water treatment it is used as an adjunct to water softening systems, as a coagulant aid to improve flocculation, and for removing dissolved silica and phosphates. In construction technology, sodium aluminate is employed to accelerate the solidification of concrete, mainly when working during frost. Sodium aluminate is used in the paper industry for fire brick production and alumina production.

Potassium aluminate can replace sodium aluminate for applications with Sodium sensitivity. Potassium aluminate is a basic coagulant as a result its use in acidic wastewaters lowers the cost of the treatment compared to the use of other coagulants. Potassium aluminate is also used as a dyeing and printing mordant and as an accelerant in the setting of concrete.

Calcium aluminates are used in the manufacture of refractories and cements. Due to its relatively high cost calcium aluminate is used in cements only under specific circumstances: when rapid strength development is required at low temperatures, when high chemical resistance is necessary, when refractory concretes need to maintain strength at high temperatures, or when as a component in blended cement require ultra-rapid strength development and controlled expansion.

American Elements manufactures multiple forms of aluminate compounds including solutions, nanopowders, submicron, and -325 mesh powders, and high surface area materials with particle distribution and particle size controlled and certified. We also produce larger -40 mesh, -100 mesh, -200 mesh range sizes and <0.5 mm, 2 mm, 5 mm and other sizes of shot, granules, lump, flake and pieces. Purities include 99%, 99.9%, 99.99%, 99.999% and 99.9999% (2N, 3N, 4N, 5N and 6N).

American Elements maintains industrial scale production for all its aluminate products and will execute Non-Disclosure or Confidentiality Agreements to protect customer know-how.

Recent Research & Development for Aluminates

Lactulose production from efficient isomerization of lactose catalyzed by recyclable sodium aluminate., Wang, Mingming, Gasmalla Mohammed A. A., Tessema Habtamu Admassu, Hua Xiao, and Yang Ruijin , Food Chem, 2017 Oct 15, Volume 233, p.151-158, (2017)

Influence of early mineral deposits of silicate- and aluminate-based cements on push-out bond strength to root dentine., Carmo, S S. do, Néspoli F F. P., Bachmann L, Miranda C E. S., Castro-Raucci L M. S., Oliveira I R., and Raucci-Neto W , Int Endod J, 2017 May 04, (2017)

Odontogenic differentiation potential of human dental pulp cells cultured on a calcium-aluminate enriched chitosan-collagen scaffold., Soares, Diana Gabriela, Rosseto Hebert Luís, Scheffel Débora Salles, Basso Fernanda Gonçalves, Huck Claudia, Hebling Josimeri, and Costa Carlos Alberto de , Clin Oral Investig, 2017 Mar 09, (2017)

Understanding surface structure and chemistry of single crystal lanthanum aluminate., Pramana, Stevin S., Cavallaro Andrea, Qi Jiahui, Nicklin Chris L., Ryan Mary P., and Skinner Stephen J. , Sci Rep, 2017 Mar 02, Volume 7, p.43721, (2017)

Cytotoxicity of New Calcium Aluminate Cement (EndoBinder) Containing Different Radiopacifiers., Huck, Claudia, Barud Hernane da Silva, Basso Fernanda Gonçalves, Costa Carlos Alberto de, Hebling Josimeri, and Garcia Lucas da Fonseca , Braz Dent J, 2017 Jan-Feb, Volume 28, Issue 1, p.57-64, (2017)

Poly(carboxylate ether)-based superplasticizer achieves workability retention in calcium aluminate cement., Akhlaghi, Omid, Menceloglu Yusuf Ziya, and Akbulut Ozge , Sci Rep, 2017 Jan 30, Volume 7, p.41743, (2017)

A non-chiral lithium aluminate reagent for the determination of enantiomeric excess of chiral alcohols., García-Rodríguez, Raúl, Hanf Schirin, Bond Andrew D., and Wright Dominic S. , Chem Commun (Camb), 2017 Jan 19, Volume 53, Issue 7, p.1225-1228, (2017)

Can zinc aluminate-titania composite be an alternative for alumina as microelectronic substrate?, Roshni, Satheesh Babu, Sebastian Mailadil Thomas, and Surendran Kuzhichalil Peethambha , Sci Rep, 2017 Jan 13, Volume 7, p.40839, (2017)

Role of Adsorption Phenomena in Cubic Tricalcium Aluminate Dissolution., Myers, Rupert J., Geng Guoqing, Li Jiaqi, Rodríguez Erich D., Ha Juyoung, Kidkhunthod Pinit, Sposito Garrison, Lammers Laura N., Kirchheim Ana Paula, and Monteiro Paulo J. M. , Langmuir, 2017 Jan 10, Volume 33, Issue 1, p.45-55, (2017)

Development of LiCl-containing calcium aluminate cement for bone repair and remodeling applications., Acuña-Gutiérrez, I O., Escobedo-Bocardo J C., Almanza-Robles J M., Cortés-Hernández D A., Saldívar-Ramírez M M. G., Reséndiz-Hernández P J., and Zugasti-Cruz A , Mater Sci Eng C Mater Biol Appl, 2017 Jan 01, Volume 70, Issue Pt 1, p.357-363, (2017)