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.

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)

Kinetically Determined Hygroscopicity and Efflorescence of Sucrose-Ammonium Sulfate Aerosol Droplets under Lower Relative Humidity., Wang, Lin-Na, Cai Chen, and Zhang Yun-Hong , J Phys Chem B, 2017 Sep 14, Volume 121, Issue 36, p.8551-8557, (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)

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)

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)

Revealing Brown Carbon Chromophores Produced in Reactions of Methylglyoxal with Ammonium Sulfate., Lin, Peng, Laskin Julia, Nizkorodov Sergey A., and Laskin Alexander , Environ Sci Technol, 2015 Dec 15, Volume 49, Issue 24, p.14257-66, (2015)

An ammonium sulfate sensitive chitinase from Streptomyces sp. CS501., Rahman, Md Arifur, Choi Yun Hee, Pradeep G C., and Yoo Jin Cheol , Arch Pharm Res, 2014 Dec, Volume 37, Issue 12, p.1522-9, (2014)