Molybdic acid
- Product Name:Molybdic acid
- CAS:7782-91-4
- MF:H2MoO4
- MW:161.95
- EINECS:231-970-5
- Mol File:7782-91-4.mol
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Molybdic acid Chemical Properties
- Melting point:300 °C
- Density 3.1 g/mL at 25 °C(lit.)
- vapor density 6.2 (vs air)
- storage temp. Store at +5°C to +30°C.
- form white powder
- color White powder
- Specific Gravity3.1
- OdorOdorless
- Water Solubility 70 g/l (20 ºC)
- Merck 13,6263
- CAS DataBase Reference7782-91-4(CAS DataBase Reference)
- EPA Substance Registry SystemMolybdate (MoO42-), dihydrogen, (T-4)- (7782-91-4)
- Hazard Codes Xi,Xn
- Risk Statements 36/37/38-48/20/22-36/37
- Safety Statements 24/25-22-26
- WGK Germany 3
- TSCA Yes
- HS Code 28111990
- Language:EnglishProvider:Molybdic acid
- Language:EnglishProvider:ACROS
- Language:EnglishProvider:ALFA
Molybdic acid Usage And Synthesis
- DescriptioinThe monohydrate is a yellow solid consisting of monoclinic crystals; density 3.124 g/cm3 at 15°C; loses water of crystallization on heating at 70°C;
sparingly soluble in cold water (1.33 g/L at 18°C); moderately soluble in hot water 25.68 g/L at 70°C; soluble in caustic soda and sodium carbonate solution. The anhydrous acid consists of white hexagonal crystals; density 3.112 g/cm3; converts to molybdenum trioxide, MoO3 at 70°C; slightly soluble in water; soluble in alkalies and sulfuric acid.
The monohydrate is prepared by treating a molybdate solution with nitric acid, followed by crystallization which may take several weeks to separate out as a yellow solid. The anhydrous molybdic acid is obtained as a white crystalline substance by careful dehydration of the yellow monohydrate. - Chemical Propertieswhite crystals or crystalline powder
- UsesDetermination of phosphates.
- DefinitionMolybdic acid of commerce iseither ammonium molybdate (molybdic acid 85%)or molybdenum trioxide. The use of the term inter-changeably for these compounds has caused con-fusion. Solutions of molybdic acid are very com-plex chemically since they show a great tendencyto polymerize.
Molybdic acid Preparation Products And Raw materials
- Preparation Products1-NaphtholAcrolein1,2,3,4-Tetrahydronaphthalene
- Raw materialsMOLYBDENUM(IV) SULFIDEAmmonium molybdate tetrahydrate
- Phosphomolybdic Acid Molybdic acid copper(II) salt Molybdic acid (H2MoO4), disodium salt,Molybdic acid, disodium salt,Molybdic acid, disodium salt: (Disodium molybdate) NPW-150 AMMONIUM MOLYBDATE MIXTURE,Ammonium molybdate (para) hydrate,ammonium molybdate (para) hydrate, puratronic,AMMONIUM MOLYBDATE 4-HYDRATE, REAG.,MOLYBDIC ACID AMMONIUM SALT,MOLYBDIC ACID AMMONIUM TETRAHYDRATE,Molybdic acid, hexaammonium salt: (Ammonium heptamolybdate),AMMONIUM MOLYBDATE REAGENT II,AMMONIUM MOLYBDATE REAGENT I,AMMONIUM MOLYBDATE (PARA),AMMONIUM MOLYBDATE REAGENT 1,AMMONIUM MOLYBDATE MAGNESIUM MOLYBDATE COPPER MOLYBDATE Molybdenyl acetylacetonate NICKEL MOLYBDATE Molybdic acid AMMONIUM MOLYBDATE, 99.98%,AMMONIUM MOLYBDATE, 99.999%,Molybdic acid bisammonium salt,AMMONIUM MOLYBDATE 99.99+%,AMMONIUM MOLYBDATE Ammonium molybdate tetrahydrate, 98+%,AMMONIUM MOLYBDATE, REAG.,AMMONIUM MOLYBDATE R. G., REAG. PH. EUR.,Ammonium molybdate(VI) tetrahydrate, for analysis ACS,Ammonium molybdate(VI) tetrahydrate, for analysis, 99+%,AMMONIUM MOLYBDATE SOLUTION 4%,AMMONIUM MOLYBDATE REAGENT (ACS),AMMONIUM MOLYBDATE SOLUTION, 10% REAGENT,ammonium molybdate tetrahydrate (para), acs,Ammonium heptamolybdate tetrahydrate, Ammonium molybdate tetrahydrate, Molybdic acid tetrahydrate ammonium salt,AMMONIUM MOLY phosphoric acid Molybdic(Ⅵ) acid,AMMONIUM MOLYBDATE,AMMONIUM MOLYBDATE REAGENT,AMMONIUM MOLYBDATE TS,AMMONIUM MOLYBDATE (DI) Molybdic acid barium salt Ethyl 2-(Chlorosulfonyl)acetate Ascoric Acid Citric acid Glycine
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