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SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 39 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
| Pubchem Sid | 504753780 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/504753780 |
| PH | 8.5-9.0 (25 °C, 50 g/L) |
| Canonical Smiles | O.O.O.O.O.O.O.O[As](=O)([O-])[O-].[Na+].[Na+] |
| IUPAC Name | disodium;hydrogen arsorate;heptahydrate |
| InChIKey | KOLXPEJIBITWIQ-UHFFFAOYSA-L |
| INCHI | 1S/AsH3O4.2Na.7H2O/c2-1(3,4)5;;;;;;;;;/h(H3,2,3,4,5);;;7*1H2/q;2*+1;;;;;;;/p-2 |
| Isomeric SMILES | O.O.O.O.O.O.O.O[As](=O)([O-])[O-].[Na+].[Na+] |
| WGK Germany | 3 |
| RTECS | CG0900000 |
| PubChem CID | 61460 |
| UN Number | 1685 |
| Packing Group | II |
| Molecular Weight | 312.01 |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Inorganic compounds |
|---|---|
| Superclass | Mixed metal/non-metal compounds |
| Class | Alkali metal oxoanionic compounds |
| Subclass | Alkali metal arsenates |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Alkali metal arsenates |
| Alternative Parents | Miscellaneous arsenates Metalloid salts Inorganic sodium salts Inorganic oxides Inorganic arsenic compounds |
| Molecular Framework | Not available |
| Substituents | Arsenate - Alkali metal arsenate - Inorganic sodium salt - Inorganic oxide - Inorganic salt - Inorganic metalloid salt - Inorganic arsenic compound |
| Description | This compound belongs to the class of inorganic compounds known as alkali metal arsenates. These are inorganic compounds in which the largest oxoanion is arsenate, and in which the heaviest atom not in an oxoanion is an alkali metal. |
| External Descriptors | Not available |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
| Certificate of Analysis | May 09, 2026 | S475248 | |
| Certificate of Analysis | May 09, 2026 | S475248 | |
| Certificate of Analysis | May 09, 2026 | S475248 | |
| Certificate of Analysis | Dec 25, 2025 | S475248 | |
| Certificate of Analysis | Dec 25, 2025 | S475248 | |
| Certificate of Analysis | May 15, 2025 | S475248 | |
| Certificate of Analysis | May 15, 2025 | S475248 | |
| Certificate of Analysis | Nov 16, 2024 | S475248 | |
| Certificate of Analysis | Nov 16, 2024 | S475248 | |
| Certificate of Analysis | Aug 01, 2024 | S475248 | |
| Certificate of Analysis | Aug 01, 2024 | S475248 | |
| Certificate of Analysis | Aug 01, 2024 | S475248 | |
| Certificate of Analysis | May 31, 2024 | S475248 | |
| Certificate of Analysis | May 31, 2024 | S475248 | |
| Certificate of Analysis | May 31, 2024 | S475248 | |
| Certificate of Analysis | Apr 29, 2024 | S475248 | |
| Certificate of Analysis | Apr 29, 2024 | S475248 | |
| Certificate of Analysis | Mar 13, 2024 | S475248 | |
| Certificate of Analysis | Mar 13, 2024 | S475248 | |
| Certificate of Analysis | Jan 25, 2024 | S475248 | |
| Certificate of Analysis | Jan 25, 2024 | S475248 | |
| Certificate of Analysis | Jan 25, 2024 | S475248 | |
| Certificate of Analysis | Jan 25, 2024 | S475248 | |
| Certificate of Analysis | Nov 16, 2023 | S475248 | |
| Certificate of Analysis | Nov 16, 2023 | S475248 | |
| Certificate of Analysis | Apr 01, 2023 | S475248 |
| Solubility | Soluble in water and glycerol. |
|---|---|
| Sensitivity | Moisture sensitive |
| Melt Point(°C) | 180°C |
| Molecular Weight | 312.010 g/mol |
| XLogP3 | |
| Hydrogen Bond Donor Count | 8 |
| Hydrogen Bond Acceptor Count | 11 |
| Rotatable Bond Count | 0 |
| Exact Mass | 311.963 Da |
| Monoisotopic Mass | 311.963 Da |
| Topological Polar Surface Area | 90.400 Ų |
| Heavy Atom Count | 14 |
| Formal Charge | 0 |
| Complexity | 46.500 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 10 |
| 1. Yulu Ai, Hongping Chen, Mengfang Chen, Wenying Zhang, Yufei Jia, Lu Han, Jing Li, Yongming Luo. (2023) Characteristics and mechanism of effectively capturing arsenate by sulfate intercalated and self-doping layered double hydroxide derived from field acid mine drainage. SEPARATION AND PURIFICATION TECHNOLOGY, [PMID:] [10.1016/j.seppur.2023.125763] |
| 2. Huiping Zeng, Weihua Zhao, Siqi Sun, Xiao Sun, Yuwei Zeng, Ruixia Hao, Jie Zhang, Dong Li. (2023) Facile preparation of maghemite based on iron sludge for arsenic removal from water. SCIENCE OF THE TOTAL ENVIRONMENT, [PMID:37806569] [10.1016/j.scitotenv.2023.167575] |
| 3. Hong-Yan Wang, Amit Kumar, Jin Li, Peng Chen, Zhi-Guo Yu, Guo-Xin Sun. (2023) The adsorption behavior and mechanism for arsenate by lanthanum-loaded biochar with different modification methods. Environmental Technology & Innovation, [PMID:] [10.1016/j.eti.2023.103344] |
| 4. Zibin Pan, Rongrong Xie, Zuliang Chen. (2023) One-step simultaneous biomass synthesis of iron nanoparticles using tea extracts for the removal of metal(loid)s in acid mine drainage. CHEMOSPHERE, [PMID:37391078] [10.1016/j.chemosphere.2023.139366] |
| 5. Jin Qi, Dong Yingbo, Pan Hanlin, Lin Hai. (2023) Remediation performance of As-contaminated water and soil using a novel Fe–Mn bimetallic (oxyhydr)oxide coated on natural magnetite. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 30 (23): (64233-64245). [PMID:37061639] [10.1007/s11356-023-26726-7] |
| 6. Varney Edwin Johnson, Qi Liao, Bob Wisdom Jallawide, Richmond Anaman, Charles Amanze, Peicheng Huang, Wei Cao, Chunlian Ding, Yan Shi. (2023) Simultaneous removal of As(V) and Pb(II) using highly-efficient modified dehydrated biochar made from banana peel via hydrothermal synthesis. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, [PMID:] [10.1016/j.colsurfa.2023.131115] |
| 7. Lina Xu, Zhu Shu, Lingling Feng, Jun Zhou, Tiantian Li, Zhengliang Zhao, Wenbin Wang. (2022) Fresh biomass derived biochar with high-load zero-valent iron prepared in one step for efficient arsenic removal. Journal of Cleaner Production, [PMID:] [10.1016/j.jclepro.2022.131616] |
| 8. Rao Honghong, Li Jianying, Luo Mingyue, Zhang Kehui, Gou Hao, Liu Haixia, Xue Zhonghua. (2022) A label-free and modification-free ratiometric electrochemical strategy for enhanced natural enzyme detection using a bare electrode and nanozymes system. ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 414 (9): (2991-3003). [PMID:35106612] [10.1007/s00216-022-03932-9] |
| 9. Siqi Liu, Andrey M. Kuznetsov, Weiqing Han, Alexei N. Masliy, Gregory V. Korshin. (2022) Removal of dimethylarsinic acid (DMA) in the Fe/C system: roles of Fe(II) release, DMA/Fe(II) and DMA/Fe(III) complexation. WATER RESEARCH, [PMID:35149364] [10.1016/j.watres.2022.118093] |
| 10. Tuo Zhang, Xinyi Chen, Yu Wang, Lijuan Li, Yuanyuan Sun, Yanan Wang, Xibai Zeng. (2021) The stability of poorly crystalline arsenical ferrihydrite after long-term soil suspension incubation. CHEMOSPHERE, [PMID:34767854] [10.1016/j.chemosphere.2021.132844] |
| 11. Xin Sun, Minlin Mao, Kaibin Lu, Qimei Hu, Weizhen Liu, Zhang Lin. (2021) One-step removal of high-concentration arsenic from wastewater to form Johnbaumite using arsenic-bearing gypsum. JOURNAL OF HAZARDOUS MATERIALS, [PMID:34753651] [10.1016/j.jhazmat.2021.127585] |
| 12. Tao Huang, Longfei Liu, Shuwen Zhang. (2021) Electrokinetic removals of arsenate and arsenite from the aqueous environment by a fluidized bed of superparamagnetic iron oxide nanoparticle-coated pyrite microelectrodes. SEPARATION SCIENCE AND TECHNOLOGY, [PMID:] [10.1080/01496395.2019.1708113] |
| 13. Zhixu Lu, Xuezhu Li, Xianjin Qi. (2021) Cobalt-loaded resin can effectively remove arsenic in wastewater. Environmental Technology & Innovation, [PMID:] [10.1016/j.eti.2021.101354] |
| 14. Caiying Zhang, Xueru Wang, Shaoxing Pi, Zejing Wei, Chang Wang, Fan Yang, Guyue Li, Gaohui Nie, Guoliang Hu. (2020) Cadmium and molybdenum co-exposure triggers autophagy via CYP450s/ROS pathway in duck renal tubular epithelial cells. SCIENCE OF THE TOTAL ENVIRONMENT, [PMID:33243500] [10.1016/j.scitotenv.2020.143570] |
| 15. Xing Gao, Yutao Peng, Lili Guo, Qiong Wang, Chung-Yu Guan, Fan Yang, Qing Chen. (2020) Arsenic adsorption on layered double hydroxides biochars and their amended red and calcareous soils. JOURNAL OF ENVIRONMENTAL MANAGEMENT, [PMID:32778322] [10.1016/j.jenvman.2020.111045] |
| 16. Yuanjun Tang, Yingying Xie, Guining Lu, Han Ye, Zhi Dang, Zining Wen, Xueqin Tao, Chunsheng Xie, Xiaoyun Yi. (2020) Arsenic behavior during gallic acid-induced redox transformation of jarosite under acidic conditions. CHEMOSPHERE, [PMID:32388258] [10.1016/j.chemosphere.2020.126938] |
| 17. Jing Su, Tao Lyu, Hao Yi, Lei Bi, Gang Pan. (2019) Superior arsenate adsorption and comprehensive investigation of adsorption mechanism on novel Mn-doped La2O2CO3 composites. CHEMICAL ENGINEERING JOURNAL, [PMID:] [10.1016/j.cej.2019.123623] |
| 18. Yingchao Li, Maodan Xu, Huanshun Yin, Weijie Shi, Geoffrey I.N. Waterhouse, Houshen Li, Shiyun Ai. (2019) Yolk-shell Fe3O4 nanoparticles loaded on persimmon-derived porous carbon for supercapacitor assembly and As (V) removal. JOURNAL OF ALLOYS AND COMPOUNDS, [PMID:] [10.1016/j.jallcom.2019.151887] |
| 19. Xiaohui Dai, Shuxin Zhang, Geoffrey I.N. Waterhouse, Hai Fan, Shiyun Ai. (2018) Recyclable polyvinyl alcohol sponge containing flower-like layered double hydroxide microspheres for efficient removal of As(V) anions and anionic dyes from water. JOURNAL OF HAZARDOUS MATERIALS, [PMID:30597373] [10.1016/j.jhazmat.2018.12.092] |
| 20. Junhui Liu, Long Kong, Xueqiong Huang, Min Liu, Liang Li. (2018) Removal of arsenic(V) from aqueous solutions using sulfur-doped Fe3O4 nanoparticles. RSC Advances, 8 (71): (40804-40812). [PMID:35557881] [10.1039/C8RA08699K] |
| 21. Lijin Huang, Jiayu Cai, Man He, Beibei Chen, Bin Hu. (2018) Room-Temperature Synthesis of Magnetic Metal–Organic Frameworks Composites in Water for Efficient Removal of Methylene Blue and As(V). INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, [PMID:] [10.1021/acs.iecr.7b05294] |
| 22. Zhou Fang, Ying Su, Yaqin Yu, Huaijian Zhang, Xintian Qian. (2024) Long-term deployment of commonly used DGT devices for trace element measurement across laboratory and field settings. ANALYTICA CHIMICA ACTA, [PMID:39396294] [10.1016/j.aca.2024.343230] |
| 23. Ping Zhang, Dan Zou, Chunhua Dong, Feiping Zhao, Weichun Yang, Mengying Si, Zhihui Yang. (2024) Mechanism investigation of arsenic remediation in contaminated soil by Fe anode using the electrochemical method. Journal of Environmental Chemical Engineering, [PMID:] [10.1016/j.jece.2024.113183] |
| 24. Na Liu, Ruili Gao, Jingjing Guo, Longwei Fu, Bin Xue, Kun Ma, Chen Lin. (2024) Mechanisms of calcium-mediated As(V) immobilization by undissolved and dissolved biochar in saline-alkali environments. JOURNAL OF ENVIRONMENTAL MANAGEMENT, [PMID:39388816] [10.1016/j.jenvman.2024.122775] |
| 25. Zhenlei Wang, Yinxing Zhao, Tingting Zhang, Sizhe Lai, Qiwu Zhang, Yunliang Zhao. (2025) Mechanochemical dolomite accurately modulating the activity of newly formed Fe-hydroxide for superior and stable arsenic removal. SEPARATION AND PURIFICATION TECHNOLOGY, [PMID:] [10.1016/j.seppur.2025.131901] |
| 26. Ping Zhang, Feiping Zhao, Penggang Li, Junhao Zheng, Weichun Yang, Qingzhu Li, Zhihui Yang. (2024) Mn-assisted Fe-electrocoagulation strategy for enhanced efficient arsenic removal and its mechanism. PROCESS SAFETY AND ENVIRONMENTAL PROTECTION, [PMID:] [10.1016/j.psep.2024.04.109] |
| 27. Jiamei Zhu, Xueyan Dai, Yan Wang, Ting Cui, Bingyan Huang, Dianyun Wang, Wenjing Pu, Caiying Zhang. (2024) Molybdenum and cadmium co-induce apoptosis and ferroptosis through inhibiting Nrf2 signaling pathway in duck (Anas platyrhyncha) testes. POULTRY SCIENCE, [PMID:38537407] [10.1016/j.psj.2024.103653] |
| 28. Menghuan Zhang, Yuanyuan Lu, Qingwen Lan, Yunying Fang, Tingting Ma, Shuang He, Boyi Liu, Xinqiang Liang. (2025) Paper-Based Electrochemical Approach for Highly Rapid and Sensitive Quantification of Inorganic Phosphate in Freshwater. ACS ES&T Water, [PMID:] [10.1021/acsestwater.4c01111] |
| 29. Qiwei Sun, Huifen Yang, Xiaodi Feng, Tong Zhao. (2024) Removal and stabilization of As and Cd in water/soil using silicate-supported nano zero-valent iron composites: Preparation, behavior, mechanism and cost analysis. Journal of Environmental Chemical Engineering, [PMID:] [10.1016/j.jece.2024.113618] |
| 30. Sun Xiaolei, Li Qiao, Shen Jinyou, Han Weiqing, Li Jiansheng, Sun Xiuyun. (2024) Waste Control by Waste: Co-Treatment of Municipal Solid Waste Incineration Fly Ash and High Arsenic-Containing Wastewater. Waste and Biomass Valorization, [PMID:] [10.1007/s12649-024-02612-2] |
| 31. Zichuan Liu, Xiaojun Chen, Zhigang Xia, Qi Wang, Jianyu Huang, Tao Wang, Bocheng Zhu, Bin Su. (2023) A self-powered electro-coagulation system afforded by flexible electromagnetic flag wind generators for efficient removal of arsenic from water. Nano Energy, [PMID:] [10.1016/j.nanoen.2023.108648] |
| 32. Fanrong Zeng, Muhammad Mudassir Nazir, Temoor Ahmed, Muhammad Noman, Shafaqat Ali, Muhammad Rizwan, Mohammad Shah Alam, Jonas Lwalaba Wa Lwalaba, Guoping Zhang. (2023) Calcium and L-glutamate present the opposite role in managing arsenic in barley. ENVIRONMENTAL POLLUTION, [PMID:36702433] [10.1016/j.envpol.2023.121141] |
| 33. Zibin Pan, Zhengxian Chen, Gary Owens, Zuliang Chen. (2022) Enhanced reactivity of bimetallic Fe/Cu-organic composite (Fe/Cu-OC) using biosynthesis with tea extract for As(V) removal. Journal of Environmental Chemical Engineering, [PMID:] [10.1016/j.jece.2022.109227] |
| 34. Liangtao Pu, Yeming Xu, Qiancheng Xia, Jie Ding, Yanfeng Wang, Chao Shan, Di Wu, Quanxing Zhang, Guandao Gao, Bingcai Pan. (2020) Ferroelectric membrane for water purification with arsenic as model pollutant. CHEMICAL ENGINEERING JOURNAL, [PMID:] [10.1016/j.cej.2020.126426] |
| 35. Rongming Xu, Qinghua Ji, Pin Zhao, Meipeng Jian, Chao Xiang, Chengzhi Hu, Gong Zhang, Chaochun Tang, Ruiping Liu, Xiwang Zhang, Jiuhui Qu. (2020) Hierarchically porous UiO-66 with tunable mesopores and oxygen vacancies for enhanced arsenic removal. Journal of Materials Chemistry A, 8 (16): (7870-7879). [PMID:] [10.1039/C9TA13747E] |
| 36. Jingjing Yang, Tianxing Ma, Xiaoqin Li, Jingwei Tu, Zhi Dang, Chen Yang. (2018) Removal of Heavy Metals and Metalloids by Amino-Modified Biochar Supporting Nanoscale Zero-Valent Iron. JOURNAL OF ENVIRONMENTAL QUALITY, 47 (5): (1196-1204). [PMID:30272773] [10.2134/jeq2017.08.0320] |
| 37. Weihua Zhao, Huiping Zeng, Qihan Wang, Xiao Sun, Yuwei Zeng, Dong Li, Jie Zhang. (2025) Utilization of waste iron sludge to achieve bifunctional magnetic and adsorptive cores for synthesizing magnetic chitosan microspheres: Arsenic decontamination and its mechanism. PROCESS SAFETY AND ENVIRONMENTAL PROTECTION, [PMID:] [10.1016/j.psep.2025.107316] |
| 38. Yuanyuan Lu, Tingting Ma, Menghuan Zhang, Qingwen Lan, Jiao Yang, Xinqiang Liang. (2025) Portable Paper-Based Sensing Platform for Rapid and Simultaneous Measurement of Environmental pH and Soluble Reactive Phosphorus. ACS Sensors, [PMID:40465862] [10.1021/acssensors.5c01052] |
| 39. Chen JingQuan, Cheng WeiYi, Ren WeiYe, He LiTing, Wang Xiaoqi, Hong Xiujuan, Wang ChenLi, Wu Yajun, Bao Dandan, Wu Zhibing, Wei Yinghui, Piao Ji-Gang. (2025) Self-activated prodrug nanocomposites reprogramming lactic acid metabolism to initiate acidosis-endoplasmic reticulum stress cascade and potentiate immunogenic cell death for enhanced liver cancer therapy. JOURNAL OF NANOBIOTECHNOLOGY, [PMID:41327195] [10.1186/s12951-025-03874-1] |
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