Molybdic acid - AR,≥85% MoO3 basis,contains a large amount of ammonium molybdate , CAS No.7782-91-4

CAS: 7782-91-4 Cat. No.: M104570 Molecular Weight: 161.95 EC Number: 231-970-5

GRADE & PURITY AR, ≥85% MoO3 basis, contains a large amount of ammonium molybdate

Synonyms

EC 248-517-2 | EINECS 248-517-2 | Triad gel | MOLYBDIC(VI) ACID [MI] | UNII-I96N991J1N | diethylpyridine-2,4-dicarboxylate | MOLYBDENUM HYDROXIDE OXIDE (MO(OH)2O2) | Molybdic(VI) acid (H2MoO4) | EINECS 231-970-5 | Molybdate (MoO42-), dihydrogen, (T-4)- |

Storage

Room temperature,Desiccated,Cool

Shipped In

Normal

Overview

Molybdic acid is used as a precursor in the production of ammonium molybdate tetrahydrate and molybdenum(IV) sulfide. The mixture of molybdic acid in concentrated sulfuric acid is called as Froehde reagent, which finds application in analytical chemistry for the detection of alkaloids.

Specifications

Synonyms

EC 248-517-2 | EINECS 248-517-2 | Triad gel | MOLYBDIC(VI) ACID [MI] | UNII-I96N991J1N | diethylpyridine-2, 4-dicarboxylate | MOLYBDENUM HYDROXIDE OXIDE (MO(OH)2O2) | Molybdic(VI) acid (H2MoO4) | EINECS 231-970-5 | Molybdate (MoO42-), dihydrogen, (T-4)- |

Specifications & Purity

AR, ≥85% MoO3 basis, contains a large amount of ammonium molybdate

Storage

Room temperature, Desiccated, Cool

Shipped In

Normal

Grade

AR

Purity

≥85% MoO3 basis

Names and Identifiers

• Canonical Smiles: O[Mo](=O)(=O)O
• IUPAC Name: dihydroxy(dioxo)molybdenum
• InChIKey: VLAPMBHFAWRUQP-UHFFFAOYSA-L
• INCHI: 1S/Mo.2H2O.2O/h;2*1H2;;/q+2;;;;/p-2
• Isomeric SMILES: O[Mo](=O)(=O)O
• WGK Germany: 3
• Molecular Weight: 161.95
• Reaxy-Rn: 3903547
• Reaxys-RN_link_address: https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=3903547&ln=

Taxonomic Classification

Taxonomy Tree

• Kingdom Inorganic compounds
  • Superclass Mixed metal/non-metal compounds
    • Class Miscellaneous mixed metal/non-metals
      • Subclass Miscellaneous metallic oxoanionic compounds

• Kingdom: Inorganic compounds
• Superclass: Mixed metal/non-metal compounds
• Class: Miscellaneous mixed metal/non-metals
• Subclass: Miscellaneous metallic oxoanionic compounds
• Intermediate Tree Nodes: Not available
• Direct Parent: Miscellaneous molybdates
• Alternative Parents: Inorganic salts Inorganic oxides
• Molecular Framework: Not available
• Substituents: Molybdate - Inorganic oxide - Inorganic salt
• Description: This compound belongs to the class of inorganic compounds known as miscellaneous molybdates. These are inorganic compounds in which the largest metallic oxoanion is molybdate, to which either no atom or a non metal atom is bonded.
• External Descriptors: molybdenum oxoacid

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Chemical and Physical Properties

• Solubility: Soluble in dilute ammonium hydroxide, alkali and ammonia. Slightly soluble in water.
• Sensitivity: Moisture sensitive.
• Melt Point(°C): 300°C
• Molecular Weight: 161.960 g/mol
• Hydrogen Bond Donor Count: 2
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 0
• Exact Mass: 163.901 Da
• Monoisotopic Mass: 163.901 Da
• Topological Polar Surface Area: 74.600 Ų
• Heavy Atom Count: 5
• Formal Charge: 0
• Complexity: 81.300
• 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: 1

XLogP3

References

1. Cunao Feng, Yu Guo, Xiaowei Li, Yang Cao, Qiuxue Kuang, Minghui Zhang, Dekun Zhang.  (2023)  In Situ Formation of MoS2 on the Surface of CF to Improve the Tribological Properties of PUE.  Materials,  16  (17): (5773).  [PMID:37687466] [10.3390/ma16175773]

2. Wenfei Liang, Linping Zhong, Lijun Quan, Xuejia Wang, Mengjiao Liu, Xin Lai, Jian Bi, Daojiang Gao, Xiaohong Liu, Wei Zhang, Yan Zhao.  (2021)  Sandwich-like MoO3/ZnCo2O4 QDs@C@rGO/MoO3 hybrid nanosheets as high-performance anode for lithium-ion batteries.  CERAMICS INTERNATIONAL,      [PMID:] [10.1016/j.ceramint.2021.08.103]

3. Jixing Chai, Junye Cheng, Deqing Zhang, Yingfei Xiong, Xiuying Yang, Xuewei Ba, Sana Ullah, Guangping Zheng, Ming Yan, Maosheng Cao.  (2020)  Enhancing electromagnetic wave absorption performance of Co3O4 nanoparticles functionalized MoS2 nanosheets.  JOURNAL OF ALLOYS AND COMPOUNDS,      [PMID:] [10.1016/j.jallcom.2020.154531]

4. Wenfei Liang, Shenglan He, Lijun Quan, Li Wang, Mengjiao Liu, Yan Zhao, Xin Lai, Jian Bi, Daojiang Gao, Wei Zhang.  (2019)  Co0.8Zn0.2MoO4/C Nanosheet Composite: Rational Construction via a One-Stone-Three-Birds Strategy and Superior Lithium Storage Performances for Lithium-Ion Batteries.  ACS Applied Materials & Interfaces,      [PMID:31637908] [10.1021/acsami.9b13727]

5. Ya Gao, Yongjie Zheng, Jixing Chai, Jingzhi Tian, Tao Jing, Deqing Zhang, Junye Cheng, Huiqing Peng, Bin Liu, Guangping Zheng.  (2019)  Highly effective photocatalytic performance of {001}-TiO2/MoS2/RGO hybrid heterostructures for the reduction of Rh B.  RSC Advances,  9  (26): (15033-15041).  [PMID:35516304] [10.1039/C9RA02634G]

6. Zhen Zhang, Ping Li, Qi Wang, Qi Feng, Youkun Tao, Jiaoyan Xu, Cheng Jiang, Xiner Lu, Jiantao Fan, Meng Gu, Hui Li, Haijiang Wang.  (2019)  Mo modulation effect on the hydrogen binding energy of hexagonal-close-packed Ru for hydrogen evolution.  Journal of Materials Chemistry A,  7  (6): (2780-2786).  [PMID:] [10.1039/C8TA11251G]

7. Deqing Zhang, Jixing Chai, Junye Cheng, Yixuan Jia, Xiuying Yang, Hao Wang, Zhenlong Zhao, Chen Han, Guangcun Shan, Wenjun Zhang, Guangping Zheng, Maosheng Cao.  (2018)  Highly efficient microwave absorption properties and broadened absorption bandwidth of MoS2-iron oxide hybrids and MoS2-based reduced graphene oxide hybrids with Hetero-structures.  APPLIED SURFACE SCIENCE,      [PMID:] [10.1016/j.apsusc.2018.08.152]

8. Ling Li, Xue Zhang, Dongyang Wang, Wenming Zhang, Xiaowei Li, Xiaohui Zhao, Qinghua Zhang, Lin Gu, Ze Yu, Mingxing Wu.  (2018)  Electrospinning synthesis of high performance carbon nanofiber coated flower-like MoS2 nanosheets for dye-sensitized solar cells counter electrode.  ELECTROCHIMICA ACTA,      [PMID:] [10.1016/j.electacta.2018.05.113]

9. Changfu Wang, Lin Li, Xu Liu, Bobo Shao, Yan Liu, Yun Wang, Shengheng Tan, Zhirong Liu, Shengdong Zhang.  (2024)  Research on calcination thermal decomposition process of simulated high-level liquid waste based on two-step vitrification.  NUCLEAR ENGINEERING AND DESIGN,      [PMID:] [10.1016/j.nucengdes.2024.113232]

10. Pengnan Yao, Nan Ma, Jinming Kong, Gengzhi Sun, Xueji Zhang.  (2025)  Molybdate-driven and cucurbit[7]uril-assembled ultrasensitive miRNA fluorescence sensor.  SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,      [PMID:40675121] [10.1016/j.saa.2025.126654]