About Arsenates

Arsenate Ion

Arsenates are salts or esters of arsenic acid. The arsenic atom in arsenate is also known as pentavalent arsenic or As(V) and has a valency of 5. Arsenates are moderate oxidizers, with a potential of +0.56 for reduction to arsenites. Arsenates are chemically similar the more well-known phosphates in many respects, and this similarity is responsible for the mechanism of arsenic toxicity: in biological systems, substitution of arsenate for inorganic phosphate disrupts essential biochemical pathways. A number of naturally occurring minerals, including the iron mineral scorodite, are arsenates. Arsenates are frequently used commercially as insecticides or preservatives.

Recent Research & Development for Arsenates

Dissolved organic phosphorus enhances arsenate bioaccumulation and biotransformation in Microcystis aeruginosa., Wang, Zhenhong, Gui Herong, Luo Zhuanxi, Zhen Zhuo, Yan Changzhou, and Xing Baoshan , Environ Pollut, 2019 Sep, Volume 252, Issue Pt B, p.1755-1763, (2019)

The long-term stability of calcium arsenates: Implications for phase transformation and arsenic mobilization., Zhang, Danni, Wang Shaofeng, Wang Ying, Gomez Mario A., and Jia Yongfeng , J Environ Sci (China), 2019 Oct, Volume 84, p.29-41, (2019)

Transfer and biological effects of arsenate from soil through a plant-aphid system to the parasitoid wasp, Aphidius colemani., Kim, Myeongseob, Lee Minyoung, Kim Yongeun, Lee Yun-Sik, Son Jino, Hyun Seunghun, and Cho Kijong , Ecotoxicol Environ Saf, 2019 May 30, Volume 173, p.305-313, (2019)

Effect of pH to the surface precipitation mechanisms of arsenate and cadmium on TiO2., Hu, Shan, Lian Faqin, and Wang Junfeng , Sci Total Environ, 2019 May 20, Volume 666, p.956-963, (2019)

Assessment of biochar and zero-valent iron for in-situ remediation of chromated copper arsenate contaminated soil., Frick, Hanna, Tardif Stacie, Kandeler Ellen, Holm Peter E., and Brandt Kristian K. , Sci Total Environ, 2019 Mar 10, Volume 655, p.414-422, (2019)

Structural and functional role of anions in electrochemical water oxidation probed by arsenate incorporation into cobalt-oxide materials., Villalobos, Javier, González-Flores Diego, Klingan Katharina, Chernev Petko, Kubella Paul, Urcuyo Roberto, Pasquini Chiara, Mohammadi Mohammad Reza, Smith Rodney D. L., Montero Mavis L., et al. , Phys Chem Chem Phys, 2019 Jun 21, Volume 21, Issue 23, p.12485-12493, (2019)

Application of fly ash-based geopolymer for removal of cesium, strontium and arsenate from aqueous solutions: kinetic, equilibrium and mechanism analysis., Tian, Quanzhi, and Sasaki Keiko , Water Sci Technol, 2019 Jun, Volume 79, Issue 11, p.2116-2125, (2019)

Interaction of graphene oxide with co-existing arsenite and arsenate: Adsorption, transformation and combined toxicity., Cao, Xuesong, Ma Chuanxin, Zhao Jian, Musante Craig, White Jason C., Wang Zhenyu, and Xing Baoshan , Environ Int, 2019 Jul 06, Volume 131, p.104992, (2019)

Application of modified electrospun nanofiber membranes with α-FeO nanoparticles in arsenate removal from aqueous media., Bahmani, Pegah, Maleki Afshin, Daraei Hiua, Rezaee Reza, Khamforoush Mehrdad, Athar Saeed Dehestani, Gharibi Fardin, Ziaee Amir Hossein, and McKay Gordon , Environ Sci Pollut Res Int, 2019 Jul, Volume 26, Issue 21, p.21993-22009, (2019)

Structure and function prediction of arsenate reductase from Deinococcus indicus DR1., Chauhan, Deepika, Srivastava Pulkit A., Agnihotri Vidushi, Yennamalli Ragothaman M., and Priyadarshini Richa , J Mol Model, 2019 Jan 04, Volume 25, Issue 1, p.15, (2019)

Enrichment of indigenous arsenate reducing anaerobic bacteria from arsenic rich aquifer sediment of Brahmaputra river basin and their potential role in as mobilization., Ghosh, Soma, Gupta Abhishek, Sarkar Jayeeta, Verma Swati, Mukherjee Abhijit, and Sar Pinaki , J Environ Sci Health A Tox Hazard Subst Environ Eng, 2019, Volume 54, Issue 7, p.635-647, (2019)

Structural and mechanistic analysis of the arsenate respiratory reductase provides insight into environmental arsenic transformations., Glasser, Nathaniel R., Oyala Paul H., Osborne Thomas H., Santini Joanne M., and Newman Dianne K. , Proc Natl Acad Sci U S A, 2018 Sep 11, Volume 115, Issue 37, p.E8614-E8623, (2018)

Arsenate-dependent growth is independent of an ArrA mechanism of arsenate respiration in the termite hindgut isolate Citrobacter sp. strain TSA-1., Blum, Jodi Switzer, Hernandez-Maldonado Jaime, Redford Kaitlyn, Sing Caitlyn, Bennett Stacy C., Saltikov Chad W., and Oremland Ronald S. , Can J Microbiol, 2018 Sep, Volume 64, Issue 9, p.619-627, (2018)

Occurrence state of co-existing arsenate and nickel ions at the ferrihydrite-water interface: Mechanisms of surface complexation and surface precipitation via ATR-IR spectroscopy., Wang, Chao, Cui Yong, Zhang Jinghai, Gomez Mario, Wang Shaofeng, and Jia Yongfeng , Chemosphere, 2018 Sep, Volume 206, p.33-42, (2018)

Bioavailability and risk estimation of heavy metal(loid)s in chromated copper arsenate treated timber after remediation for utilisation as garden materials., Liu, Yanju, Du Jianhua, Dong Zhaomin, Rahman Mohammad Mahmudur, Gao Yongchao, Yan Kaihong, and Naidu Ravi , Chemosphere, 2018 Oct 20, Volume 216, p.757-765, (2018)