Merck, 221856-100G, Phosphomolybdic acid hydrate
Size:100 g, Molybdophosphoric acid, ACS reagent
Available Catalog Numbers
Catalog Number: 221856-100G
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Category
Pack Size100 g
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| NACRES | NA.21 |
|---|---|
| PubChem Substance ID | 329752282 |
| UNSPSC Code | 12352300 |
| EC Number | 234-713-5 |
| MDL number | MFCD00149913 |
| InChI key | PDDXOPNEMCREGN-UHFFFAOYSA-N |
| InChI | 1S/12Mo.H3O4P.H2O.36O/c;;;;;;;;;;;;1-5(2,3)4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/h;;;;;;;;;;;;(H3,1,2,3,4);1H2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| SMILES string | O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.OP(O)(O)=O |
| grade | ACS reagent |
| form | crystals |
| reaction suitability | reagent type: oxidant |
| impurities | ≤0.01% insolubles |
| density | 1.62 g/mL at 25 °C (lit.) |
| anion traces | chloride (Cl-): ≤0.02% |
| cation traces | Ca: ≤0.02% |
| Quality Level | 200 |
Answer:It is an ACS reagent grade supplied in a 100 g package.
Answer:It is crystalline phosphomolybdic acid hydrate, CAS 51429-74-4, with formula H3[P(Mo3O10)4]·xH2O.
Answer:No. ACS reagent and trace-metals-basis grades are separate specifications and should not be treated as equivalent.
Phosphomolybdic acid hydrate is an ACS-grade crystalline heteropolyacid for laboratory reagent preparation and chemical analysis. It functions as an oxidizing reagent and is commonly handled as a source of phosphomolybdate chemistry for analytical and synthesis workflows. The 100 g size supports laboratory protocols requiring larger quantities of this reagent rather than a premixed indicator or staining solution. The chemical has CAS number 51429-74-4 and the formula H3[P(Mo3O10)4]·xH2O. Its molecular weight is 1825.25 on an anhydrous basis, with variable hydration reflected in the hydrate designation. The ACS reagent designation identifies the specification class of this material; it is not the same as a ≥99.99% trace-metals-basis purity claim. Phosphomolybdic acid hydrate can be used in heteropolyacid and oxidative chemistry and in prepared analytical staining systems where the protocol calls for the solid reagent. Check the concentration, solvent, and preparation conditions for the application instead of treating an ACS-grade crystal as a ready-to-use solution.
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