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Cited in 14 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Sodium metaborate tetrahydrate is a colorless crystalline solid that serves as a Boron source in the synthesis of NaBH4. It finds applications in the textile industry, as well as in flame retardants and additives.
| Pubchem Sid | 504769685 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/504769685 |
| Canonical Smiles | B(=O)[O-].O.O.O.O.[Na+] |
| IUPAC Name | sodium;oxido(oxo)borane;tetrahydrate |
| InChIKey | JAKYJVJWXKRTSJ-UHFFFAOYSA-N |
| INCHI | 1S/BO2.Na.4H2O/c2-1-3;;;;;/h;;4*1H2/q-1;+1;;;; |
| Isomeric SMILES | B(=O)[O-].O.O.O.O.[Na+] |
| WGK Germany | 3 |
| Alternate CAS | 7775-19-1 |
| PubChem CID | 23694267 |
| Molecular Weight | 137.86 |
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 | Metalloid organides |
| Subclass | Metalloid oxides |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Metalloid oxides |
| Alternative Parents | Metalloid salts Inorganic sodium salts Inorganic oxides |
| Molecular Framework | Not available |
| Substituents | Metalloid oxide - Inorganic sodium salt - Inorganic oxide - Inorganic salt - Inorganic metalloid salt |
| Description | This compound belongs to the class of inorganic compounds known as metalloid oxides. These are inorganic compounds containing an oxygen atom of an oxidation state of -2, in which the heaviest atom bonded to the oxygen is a metalloid. |
| 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 | Jan 07, 2026 | S111806 | |
| Certificate of Analysis | Jan 07, 2026 | S111806 | |
| Certificate of Analysis | Nov 02, 2024 | S111806 | |
| Certificate of Analysis | Nov 02, 2024 | S111806 | |
| Certificate of Analysis | Nov 02, 2024 | S111806 | |
| Certificate of Analysis | Dec 01, 2023 | S111806 | |
| Certificate of Analysis | Dec 01, 2023 | S111806 | |
| Certificate of Analysis | Mar 08, 2023 | S111806 | |
| Certificate of Analysis | Mar 08, 2023 | S111806 |
| Solubility | Soluble in water. |
|---|---|
| Melt Point(°C) | 57°C |
| Molecular Weight | 137.860 g/mol |
| XLogP3 | |
| Hydrogen Bond Donor Count | 4 |
| Hydrogen Bond Acceptor Count | 6 |
| Rotatable Bond Count | 0 |
| Exact Mass | 138.031 Da |
| Monoisotopic Mass | 138.031 Da |
| Topological Polar Surface Area | 44.100 Ų |
| Heavy Atom Count | 8 |
| Formal Charge | 0 |
| Complexity | 13.500 |
| 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 | 6 |
| 1. Tianyu Tai, Huazhen Cao, Wenyu Feng, Zedong Yin, Huibin Zhang, Guoqu Zheng. (2023) High-efficient synthesis of NaBH4 by solid-phase electrolysis process on a core-shell-type cathode. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, [PMID:] [10.1016/j.ijhydene.2023.11.043] |
| 2. Shuyin Zhang, Jing Zou, Jiawen Li, Yixin Huang, Jianying Wu, Xiaobin Liao, Qingsong Li, Baoling Yuan, Jun Ma. (2023) Strong enhancement on acetaminophen removal in thermal-activated peroxymonosulfate with sodium metaborate: Performance, mechanism, and control of chlorinated by-products formation. SEPARATION AND PURIFICATION TECHNOLOGY, [PMID:] [10.1016/j.seppur.2023.124910] |
| 3. Kundu Chanchal Kumar, Li Zhiwei, Khan M. Azizur R., Försth Michael, Das Oisik. (2023) Polypyrrole-modified multi-functional coatings for improved electro-conductive, hydrophilic and flame-retardant properties of polyamide 66 textiles. Journal of Coatings Technology and Research, 20 (4): (1223-1234). [PMID:] [10.1007/s11998-022-00738-3] |
| 4. Yuzhu Yao, Xiaolei Qu, Linming Zhou, Yongfeng Liu, Zijian Hong, Yongjun Wu, Zhenguo Huang, Jianjiang Hu, Mingxia Gao, Hongge Pan. (2022) Rational Design of Robust and Universal Aqueous Binders to Enable Highly Stable Cyclability of High-Capacity Conversion and Alloy-Type Anodes. Energy & Environmental Materials, 6 (5): (e12429). [PMID:] [10.1002/eem2.12429] |
| 5. Xiaohui Song, Shuaiqi Sun, Lingzong Meng, Rongjian Ying, Yafei Guo, Tianlong Deng. (2021) Density, pH, and Boron Species in the Ternary System NaBO2–Na2SO4–H2O at 298.15 K and 323.15 K. Journal of Chemistry, [PMID:] [10.1155/2021/1708020] |
| 6. Lan Yang, Xiuxiu Yang, Dan Li, Liwei Zhuang, Lingzong Meng, Tianlong Deng, Yafei Guo. (2021) Solubility measurement and thermodynamic modeling of solid–liquid equilibria in quaternary system NaCl–Na2SO4–NaBO2–H2O at 323.15 K. JOURNAL OF CHEMICAL THERMODYNAMICS, [PMID:] [10.1016/j.jct.2021.106472] |
| 7. Tao Zhang, Lan Yang, Dan Li, Lingzong Meng, Yafei Guo, Tianlong Deng. (2021) Thermodynamic properties and thermodynamic modelling for aqueous mixed system containing lithium metaborate and sodium metaborate. JOURNAL OF CHEMICAL THERMODYNAMICS, [PMID:] [10.1016/j.jct.2021.106446] |
| 8. Longjun Rao, Yunfei Yang, Likun Chen, Xiudan Liu, Haixiang Chen, Yuyuan Yao, Wentao Wang. (2019) Highly efficient removal of organic pollutants via a green catalytic oxidation system based on sodium metaborate and peroxymonosulfate. CHEMOSPHERE, [PMID:31524622] [10.1016/j.chemosphere.2019.124687] |
| 9. W. Chen, L.Z. Ouyang, J.W. Liu, X.D. Yao, H. Wang, Z.W. Liu, M. Zhu. (2017) Hydrolysis and regeneration of sodium borohydride (NaBH4) – A combination of hydrogen production and storage. JOURNAL OF POWER SOURCES, [PMID:] [10.1016/j.jpowsour.2017.05.075] |
| 10. Lianjin Chen, Xiaosen Wang, Aimei Zhu, Qiugen Zhang, Qinglin Liu. (2024) Porous hemispherical Au@PdAg catalysts for enhancing ethanol electrooxidation. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, [PMID:] [10.1016/j.ijhydene.2024.03.080] |
| 11. Xiao Chen, Ruizi Wang, Xin Zhang, Yaxiong Yang, Wenping Sun, Mingxia Gao, Hongge Pan, Yongfeng Liu. (2024) Remarkably improved cycling stability of commercial micron-sized silicon enabled by a novel organic/inorganic hybrid binder. JOURNAL OF POWER SOURCES, [PMID:] [10.1016/j.jpowsour.2024.234595] |
| 12. Tian Hao, Li Wenying, He Linhai, Zhong Yunzhu, Xu Shutao, Xiao Hai, Xu Bingjun. (2023) Rationalizing kinetic behaviors of isolated boron sites catalyzed oxidative dehydrogenation of propane. Nature Communications, 14 (1): (1-11). [PMID:37845252] [10.1038/s41467-023-42403-2] |
| 13. Hao Zhong, Liuzhang Ouyang, Jiangwen Liu, Chenghong Peng, Xiaoke Zhu, Weiheng Zhu, Fang Fang, Min Zhu. (2018) Sodium borohydride regeneration via direct hydrogen transformation of sodium metaborate tetrahydrate. JOURNAL OF POWER SOURCES, [PMID:] [10.1016/j.jpowsour.2018.04.037] |
| 14. Ze Qin, Henan Shang, Qiuyue Fan, Qi Jia, Lubin Sun, Sijia Li. (2025) Boron-phosphorus dual-doped graphene supported AuPd nanocatalyst for high-efficiency direct methanol and formic acid fuel cells: Toward sustainable energy solutions. FUEL, [PMID:] [10.1016/j.fuel.2025.136164] |
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