About Ammonium Sulfates

Ammonium Sulfate Formula Diagram (NH4)2SO4

Ammonium Sulfates are double salts in the class of alums, compounds which contain a monovalent cation such as ammonium and a multivalent metal ion such as aluminum. Many alums occur in various hydrated forms as various rare minerals, but they are generally produced synthetically for commercial use. Many alums have common names: ammonium aluminum sulfate is often referred to as ammonium alum or just alum, ammonium iron(III) sulfate is sometimes known as iron alum, and ammonium iron(II) sulfate is known as Mohr’s salt.

Ammonium alum is an inexpensive and nontoxic chemical with many niche applications, including in water purification, vegetable glues, porcelain cements, deodorants, and textile finishing applications. Iron alum finds similar uses as aluminum alum, and additionally has been used as an etching agent and a reagent in organic synthesis. Mohr’s salt acquired its name from the German chemist Karl Friedrich Mohr, who worked extensively with the salt in his work improving the methodology of titration in the 19th century, and it remains a common chemical laboratory reagent.

American Elements manufactures multiple forms of ammonium sulfate 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 ammonium sulfate products and will execute Non-Disclosure or Confidentiality Agreements to protect customer know-how.

Recent Research & Development for Ammonium Sulfates

Separation and Enrichment of Lectin from Zihua Snap-Bean (Phaseolus vulgaris) Seeds by PEG 600-Ammonium Sulfate Aqueous Two-Phase System., Jiang, Bin, Yuan Yongqiang, Zhang Xiaoqing, Feng Zhibiao, and Liu Chunhong , Molecules, 2017 Sep 22, Volume 22, Issue 10, (2017)

Separation of polysaccharides from Spirulina platensis by HSCCC with ethanol-ammonium sulfate ATPS and their antioxidant activities., Wu, Xueyan, Li Ruichang, Zhao Yongjie, and Liu Yang , Carbohydr Polym, 2017 Oct 01, Volume 173, p.465-472, (2017)

Recovery and purification of limonin from pummelo [Citrus grandis] peel using water extraction, ammonium sulfate precipitation and resin adsorption., Yang, Yuan Fan, Zhang Liang Zheng, Du Xi Ping, Zhang Su Fang, Li Li Jun, Jiang Ze Dong, Wu Li Ming, Ni Hui, and Chen Feng , J Chromatogr B Analyt Technol Biomed Life Sci, 2017 Jun 03, Volume 1060, p.150-157, (2017)

A method for the preparation of curcumin by ultrasonic-assisted ammonium sulfate/ethanol aqueous two phase extraction., Xu, Guangkuan, Hao Changchun, Tian Suyang, Gao Feng, Sun Wenyuan, and Sun Runguang , J Chromatogr B Analyt Technol Biomed Life Sci, 2017 Jan 15, Volume 1041-1042, p.167-174, (2017)

Reactive Uptake of Dimethylamine by Ammonium Sulfate and Ammonium Sulfate-Sucrose Mixed Particles., Chu, Yangxi, and Chan Chak K. , J Phys Chem A, 2017 Jan 12, Volume 121, Issue 1, p.206-215, (2017)

Salting-out extraction of allicin from garlic (Allium sativum L.) based on ethanol/ammonium sulfate in laboratory and pilot scale., Li, Fenfang, Li Qiao, Wu Shuanggen, and Tan Zhijian , Food Chem, 2017 Feb 15, Volume 217, p.91-97, (2017)

Characterization of particulate products for aging of ethylbenzene secondary organic aerosol in the presence of ammonium sulfate seed aerosol., Huang, Mingqiang, Zhang Jiahui, Cai Shunyou, Liao Yingmin, Zhao Weixiong, Hu Changjin, Gu Xuejun, Fang Li, and Zhang Weijun , J Environ Sci (China), 2016 Sep, Volume 47, p.219-29, (2016)

Optimization of tetanus toxoid ammonium sulfate precipitation process using response surface methodology., Brgles, Marija, Prebeg Pero, Kurtović Tihana, Ranić Jelena, Marchetti-Deschmann Martina, Allmaier Günter, and Halassy Beata , Prep Biochem Biotechnol, 2016 Oct 02, Volume 46, Issue 7, p.695-703, (2016)

Solubilities and Glass Formation in Aqueous Solutions of the Sodium Salts of Malonic Acid With and Without Ammonium Sulfate., Kissinger, Jared A., Buttke Lukas G., Vinokur Anastasiya I., Guzei Ilia A., and Beyer Keith D. , J Phys Chem A, 2016 Jun 02, Volume 120, Issue 21, p.3827-34, (2016)

Solubility of the Sodium and Ammonium Salts of Oxalic Acid in Water with Ammonium Sulfate., Buttke, Lukas G., Schueller Justin R., Pearson Christian S., and Beyer Keith D. , J Phys Chem A, 2016 Aug 18, Volume 120, Issue 32, p.6424-33, (2016)

Large electrocaloric effects in single-crystal ammonium sulfate., Crossley, S, Li W, Moya X, and Mathur N D. , Philos Trans A Math Phys Eng Sci, 2016 Aug 13, Volume 374, Issue 2074, (2016)

Protein Precipitation Using Ammonium Sulfate., , Curr Protoc Protein Sci, 2016 Apr 01, Volume 84, p.A.3F.1-9, (2016)

Nitrous Oxide and Methane Fluxes Following Ammonium Sulfate and Vinasse Application on Sugar Cane Soil., Paredes, Debora da S., Alves Bruno J. R., Santos Marco A. dos, Bolonhezi Denizart, Sant'Anna Selenobaldo A. C., Urquiaga Segundo, Lima Magda A., and Boddey Robert M. , Environ Sci Technol, 2015 Sep 15, Volume 49, Issue 18, p.11209-17, (2015)

Ammonium Sulfate Improves Detection of Hydrophilic Quaternary Ammonium Compounds through Decreased Ion Suppression in Matrix-Assisted Laser Desorption/Ionization Imaging Mass Spectrometry., Sugiyama, Eiji, Masaki Noritaka, Matsushita Shoko, and Setou Mitsutoshi , Anal Chem, 2015 Nov 17, Volume 87, Issue 22, p.11176-81, (2015)