Name | Phosphomolybdic Acid n-Hydrate |
Synonyms | Phosphomolybdic Acid n-Hydrate |
CAS | 51429-74-4 |
EINECS | 610-660-7 |
InChI | InChI=1/12Mo.H3O4P.H2O.36O/c;1-5(2,3)4;/h;(H3,1,2,3,4);1H2;/r12MoO3.H3O4P.H2O/c12*2-1(3)4;1-5(2,3)4;/h;(H3,1,2,3,4);1H2 |
Molecular Formula | H3Mo12O40P |
Molar Mass | 1825.25 |
Density | 1.62 g/mL at 25 °C(lit.) |
Melting Point | 78-90°C |
Water Solubility | Soluble in water, ethanol and ether. |
Solubility | Soluble in ethanol and ether |
Appearance | Solid |
Specific Gravity | 0.94 |
Color | Yellow |
Exposure Limit | ACGIH: TWA 0.5 mg/m3 NIOSH: IDLH 1000 mg/m3 |
Merck | 14,7342 |
Storage Condition | Store at +5°C to +30°C. |
Stability | Stable. Incompatible with powdered metals, organic materials. Contact with combustible material may cause fire. |
Sensitive | Hygroscopic |
MDL | MFCD00149913 |
Use | Used as an analytical reagent |
Risk Codes | R8 - Contact with combustible material may cause fire R34 - Causes burns |
Safety Description | S17 - Keep away from combustible material. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
UN IDs | UN 3084 8/PG 2 |
WGK Germany | 3 |
FLUKA BRAND F CODES | 3 |
TSCA | Yes |
HS Code | 2811 19 80 |
Hazard Class | 5.1 |
Packing Group | III |
Raw Materials | Phosphoric acid Ether |
Reference Show more | 1. Xi Xiaozhi, Li Jia, Guo Shosa, etc. Optimization of purification process of Chenodeoxycholic acid by macroporous resin and its Hypolipidemic activity [J]. Modern food science and technology, 2018, 034(008):123-129. 2. Yulong Zhang, Zi Liu, Lina Zol, Baoxian Ye,A new voltammetric sensor platform for eriocitrin based on CoS2-MoS2-PDDA-GR nano composite,Talanta,Volume 189,2018,Pages 345-352,ISSN 0039-9140,https://doi.org/10.1016/j.talanta.2018.07.004. 3. [IF = 6.057] Yulong Zhang et al."A new voltammetric sensor platform for eriocitrin based on CoS2-MoS2-PDDA-GR nanocomposite." Talanta. 2018 Nov;189:345 4. [IF = 5.706] Tianmeng Guo et al."Selective conversion of biomass-derived levulinic acid to ethyl levulinate catalyzed by metal organic framework (MOF)-supported polyoxometalates."Appl Catal A- Gen. 2019 Feb;572:168 |
phosphomolybdic acid is yellow diamond crystal or crystalline powder, relative density 3. 15, melting point 70~80 ℃, soluble in water, ethanol, ether.
molybdenum trioxide phosphoric acid method: Molybdenum trioxide and phosphoric acid as raw materials for the preparation of phosphomolybdic acid. Add molybdenum trioxide to the reactor, and add water according to the ratio of molybdenum trioxide: water (mass) 1: 10, stir well and then add 85% Phosphoric acid (molybdenum trioxide-phosphoric acid molar ratio of 12:1), boiling for 3H to carry out the reaction, before the reaction, the solution is milky white, the initial reaction is golden yellow, and the latter is green. During the reaction, the reaction solution should be kept stable boiling and water should be added to maintain the liquid level. In the later stage of the reaction, the pH value should be controlled at about 10. After vacuum suction filtration, filter residue and filtrate should be removed, 30% hydrogen peroxide should be added dropwise, the solution was switched from green to yellow. The solution was then concentrated by evaporation until the temperature of the solution was 105 °c. The solution was slowly cooled, crystallized and prepared by centrifugation.
mainly used as oxidation-reduction catalyst, such as direct oxidation of methane to formaldehyde, propylene oxidation of acrolein, acetone, etc.; Also used for corrosion inhibitor, highway road marking pigment.
Phosphomolybdic acid (phosphomolybdic acid), also known as dodecadolybdic acid, or PMA for short, is a yellow-green inorganic compound. It is a heteropoly acid. Phosphomolybdic acid is soluble in water and polar organic solvents (such as ethanol). Phosphomolybdate hydrate is a yellow solid, which contains 28 water molecules. Phosphomolybdic acid is a high-efficiency oxidant and has fast multi-electron reversible redox characteristics under mild conditions. Therefore, it has become an important catalyst and is widely used in organic synthesis, organic oxidation process, corrosion inhibitor and non-carbon fuel cell.
Use as analytical reagent
The application structure not only has the characteristics of complexes and metal oxides, but also has acidity and redox properties, as well as the secondary structure of crystal water. It has special functions for organic synthesis catalysts, metal corrosion inhibitors and solid electrolytes; it is also used as a catalyst for the preparation of propylene by ammoxidation, a basic raw material for the preparation of organic pigments, reagents used for analysis, and the use of testing alkaloids and rare earth metals; This product is also widely used in medicines and pesticides as acidic catalysts for product synthesis
Use to detect alkaloids, uric acid, xanthine, creatinine and certain metals. Determination of antimony, cerium, copper, thallium and vanadium by microanalysis. Used for nerve staining with hematoxylin.