7631-95-0

Basic information

• Product Name: Sodium molybdate
• Synonyms: Disodium molybdate;disodium,(T-4)-Molybdate;disodiummolybdate;Molybdate (MoO42-), disodium, (T-4)-;Molybdate (MoO42-), disodium, (T-4)-;molybdic;Molybdic acid (H2MoO4), disodium salt;Molybdic acid, disodium salt
• CAS NO: 7631-95-0
• Molecular Formula: 2H₂O*MoO₄*2Na
• Molecular Weight: 205.91714
• EINECS: 231-551-7
• Product Categories: INORGANIC & ORGANIC CHEMICALS;Inorganic Chemicals;Inorganics;Catalysis and Inorganic Chemistry;Chemical Synthesis;Molybdenum;inorganic compound
• Mol File: 7631-95-0.mol
• Article Data: 1

Chemical Properties

• Melting Point: 687 °C(lit.)
• Boiling Point: 100oC
• Appearance: White/Powder
• Density: 3.78 g/mL at 25 °C(lit.)
• Refractive Index: 1.714
• Solubility: insoluble in EtOH; insoluble in DMSO; ≥20.6 mg/mL in H2O
• Water Solubility: It is soluble in water.
• Sensitive: Hygroscopic
• Stability: Stable. Incompatible with strong oxidizing agents.
• Merck: 14,8645
• CAS DataBase Reference: Sodium molybdate(CAS DataBase Reference)
• NIST Chemistry Reference: Sodium molybdate(7631-95-0)
• EPA Substance Registry System: Sodium molybdate(7631-95-0)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36
• WGK Germany: 1
• RTECS: QA5075000
• TSCA: Yes
• Hazardous Substances Data: 7631-95-0(Hazardous Substances Data)

Usage

Preparation

may be obtained as a dihydrate by evaporating an aqueous solution of molybdenum trioxide and sodium hydroxide. Heating the dihydrate at 100°C converts it to the anhydrous salt.

Chemical Properties

solid

Uses

Different sources of media describe the Uses of 7631-95-0 differently. You can refer to the following data:
1. Reagent in analytical chemistry, paint pigment, production of molybdated toners and lakes, metal finishing, brightening agent for zinc plating, corro- sion inhibitor, catalyst in dye and pigment produc- tion, additive for fertilizers and feeds, micronutri- ent.
2. Sodium Molybdate is used in method for preparing fermentation medium with reduced color and viscosity.
3. Sodium molybdate (Na2MO4) may be used as an electrolyte additive, for use in electrochemical capacitors. Addition of Na2MO4 as an electrolyte additive may result in enhanced capacitance, corrosion prevention and stabilized performance.It may also be used as a catalyst during the manufacture of paints and dyes.

Definition

ChEBI: An inorganic sodium salt having molybdate as the counterion.

General Description

Sodium molybdate has corrosion resistant properties. On heating, it undergoes degradation and releases Na2O fumes.

Flammability and Explosibility

Nonflammable

Agricultural Uses

Sodium molybdate (NazMoO4-2H2O), which is an important molybdenum source, is applied along with other fertilizers or as a foliar spray (with 39% molybdenum). Sodium molybdate is the sodium salt of molybdic acid. Fusing molybdenum oxide with sodium carbonate or hydroxide makes sodium molybdate. Molybdenum is an essential component of the enzyme nitrate reductase which catalyzes the conversion of nitrate (NO3-) to nitrite (NO2-). It is also a component of the nitrogenase enzyme involved in nitrogen fixation by root nodule bacteria of leguminous crops. Soaking seeds in sodium molybdate solution (made with slurry or dust) before sowing is an effective seed treatment. Sodium molybdate, the most commonly used fertilizer supplying molybdenum, is used as foliar spray, or in mixed fertilizers. It is also used in seed treatment.

Biological Activity

sodium molybdate is an acid phosphatase inhibitor. the osteoclastic acid phosphatase isoenzyme, secreted by osteoclasts, is a member of a widely-distributed class of iron-containing proteins with acid phosphatase activity. elevated plasma isoenzyme levels are associated with increased bone turnover in metabolic disease. by inhibiting this class of acid phosphatases, sodium molybdate is capable of abolishing bone resorption. in addition, sodium molybdate has been shown to stabilize the nonactivated glucocorticoid-receptor complex.1. zaidi m, moonga b, moss dw, et al. inhibition of osteoclastic acid phosphatase abolishes bone resorption. biochemical and biophysical research communications, 1989, 159(1): 68-71.2. denis m, wikstr?m ac, gustafsson ja. the molybdate-stabilized nonactivated glucocorticoid receptor contains a dimer of mr 90,000 non-hormone-binding protein. journal of biological chemistry, 1987, 262(24): 11803-11806.

Safety Profile

Poison by intraperitoneal route. Moderately toxic by subcutaneous and intravenous routes. Experimental reproductive effects. Mutation data reported. When heated to decomposition it emits toxic fumes of Na2O. See also MOLYBDENUM COMPOUNDS.

InChI:InChI=1/Mo.2Na.4O/rMoNa2O4/c2-6-1(4,5)7-3

Synthetic route

sodium molybdate decahydrate → sodium molybdate dihydrate (7631-95-0)

Conditions	Yield
In neat (no solvent) decompn. of Na2MoO4*10H2O at ambient temp.;;
In neat (no solvent) decompn. of Na2MoO4*10H2O at room temp. during a few days;;
In neat (no solvent) decompn. of Na2MoO4*10H2O at room temp. during a few days;;
In neat (no solvent) decompn. of Na2MoO4*10H2O at ambient temp.;;

sodium molybdate + water (7732-18-5) → sodium molybdate dihydrate (7631-95-0)

Conditions	Yield
In water solving of Na2MoO4 in H2O;; concn. of the soln.; crystn.; filtration; washing with small amt. of H2O; drying between paper and then over CaO and H2SO4 for 24 hours;;
In water solving of Na2MoO4 in H2O;; concn. of the soln.; crystn.; filtration; washing with small amt. of H2O; drying between paper and then over CaO and H2SO4 for 24 hours;;

sodium carbonate (497-19-8) + molybdenum(VI) oxide → sodium molybdate dihydrate (7631-95-0)

Conditions	Yield
In water neutralization of an aq. soln. of MoO3 with Na2CO3;; evapn. at ambient temp.;;
In water neutralization of an aq. soln. of MoO3 with Na2CO3;; evapn. at ambient temp.;;

ammonium molybdate + sodium hydroxide (1310-73-2) → sodium molybdate dihydrate (7631-95-0)

Conditions	Yield
In sodium hydroxide byproducts: NH3; addn. of an excess of NaOH to a soln. of ammonium molybdate; boiling til formation of NH3 stops;; addn. of alc.; pptn.; washing with alc.; drying; recrystn. from H2O;;
In sodium hydroxide boiling of equival. amts of ammonium molybdate and NaOH;; recrystn.;;
In sodium hydroxide aq. NaOH; boiling of equival. amts of ammonium molybdate and NaOH;; recrystn.;;
In sodium hydroxide byproducts: NH3; aq. NaOH; addn. of an excess of NaOH to a soln. of ammonium molybdate; boiling til formation of NH3 stops;; addn. of alc.; pptn.; washing with alc.; drying; recrystn. from H2O;;

sodium molybdate → sodium molybdate dihydrate (7631-95-0)

Conditions	Yield
With water In water above 10°C;
With H2O In water above 10°C;

sodium terbium(III) phosphate molybdate → sodium molybdate dihydrate (7631-95-0) + terbium(III) phosphate (765876-75-3)

Conditions	Yield
In neat (no solvent) heated in alundum crucibles under inert gas flow at a rate of 20 K/min in the range 20-500°C and 10 K/min in the range of 500-900°C; identified by X-ray diffraction;

sodium thulium phosphate molybdate → sodium molybdate dihydrate (7631-95-0) + thulium(III) phosphate (753426-80-1)

Conditions	Yield
In neat (no solvent) heated in alundum crucibles under inert gas flow at a rate of 20 K/min in the range 20-500°C and 10 K/min in the range of 500-900°C; identified by X-ray diffraction;

sodium holmium(III) phosphate molybdate → sodium molybdate dihydrate (7631-95-0) + holmium(III) orthophosphate (791563-17-2)

Conditions	Yield
In neat (no solvent) heated in alundum crucibles under inert gas flow at a rate of 20 K/min in the range 20-500°C and 10 K/min in the range of 500-900°C; identified by X-ray diffraction;

sodium dysprosium(III) phosphate molybdate → sodium molybdate dihydrate (7631-95-0) + dysprosium(III) orthophosphate (785025-30-1)

Conditions	Yield
In neat (no solvent) heated in alundum crucibles under inert gas flow at a rate of 20 K/min in the range 20-500°C and 10 K/min in the range of 500-900°C; identified by X-ray diffraction;

sodium erbium(III) molybdophosphate → sodium molybdate dihydrate (7631-95-0) + erbium(III) orthophosphate (775556-30-4)

Conditions	Yield
In neat (no solvent) heated in alundum crucibles under inert gas flow at a rate of 20 K/min in the range 20-500°C and 10 K/min in the range of 500-900°C; identified by X-ray diffraction;

sodium lutetium(III) phosphate molybdate → lutetium(III) orthophosphate (733719-76-1) + sodium molybdate dihydrate (7631-95-0)

Conditions	Yield
In neat (no solvent) heated in alundum crucibles under inert gas flow at a rate of 20 K/min in the range 20-500°C and 10 K/min in the range of 500-900°C;

3Na(1+)*Rb(1+)*2MoO4(2-)*9H2O=Na3Rb(MoO4)2*9H2O → sodium molybdate dihydrate (7631-95-0)

Conditions	Yield
In neat (no solvent, solid phase) byproducts: NaRbMoO4*2H2O, H2O; storage for 1-2h at room temp.; not isolated; X-ray diffraction;

sodium molybdate dihydrate (7631-95-0) + K9[A,α-PW9O34]*16H2O → K7[α-PW9Mo2O39]

Conditions	Yield
With lithium chloride; hydrochloric acid; potassium bromide In water to a soln. of sodium molybdate was added LiCl, water and dropwise hydrochloric acid until pH 4.5 to 5, K9(A,α-PW9O34)*16H2O was added slowly and pH kept between 4.5 and 5 (HCl), KBr was added; ppt. was filtered off, dried;	99%

sodium molybdate dihydrate (7631-95-0) + 2,3,5,6-tetrakis(2-pyridyl)pyrazine (25005-97-4) + water (7732-18-5) + copper(II) bis(trifluoromethanesulfonate) (34946-82-2) → [Cu4(2,3,5,6-tetrakis(2-pyridyl)pyrazine)4(H2O)4(molybdateate)2](triflate)4*7H2O

Conditions	Yield
In water; acetone Cu salt and ligand dissolved in H2O-acetone under stirring and heating at 75°C; diluted aq. Na2MoO4*2H2O carefully added; filtered; filtrate evapd. slowly in air at room temp. for 1 mo; crystalscollected; washed with very small amt. of cold H2O and acetone; second crop obtained by evapn. of the soln.; elem. anal.;	99%

tellurium(IV) oxide (7446-07-3) + sodium molybdate dihydrate (7631-95-0) → Na2MoTe4O12

Conditions	Yield
In water molar ratio Mo:Te=3:1, acid digestion bomb, 225°C, 4 d; then cooling to room temp. over 36 h;	98%
In neat (no solvent, solid phase) stoich. amts., heating in air (450°C, 6 h; then 625°C, 2 d; intermittent grinding);

sodium molybdate dihydrate (7631-95-0) + 2-formylpyridine-N(4)-methylthiosemicarbazone (32646-21-2) → (C6H4NCHN2HCSNHCH3)4(pyridine-2-carboxaldehyde N4-methylthiosemicarbazone)2(β-octamolybdate)*2H2O

Conditions	Yield
With HCl In water aq. soln. of Na2MoO4*2H2O acidified with 2 drops of HCl, treated with solid ligand (0.5 equiv.) under vigorous stirring, reacted for 2 h; filtered, washed (H2O, EtOH, acetone), dried (vac.), elem. anal.;	98%

sodium molybdate dihydrate (7631-95-0) + thiourea (17356-08-0) → molybdenum(IV) disulfide

Conditions	Yield
With hydrogenchloride; 1-butyl-3-methylimidazolium chloride In water at 180℃; for 24h; pH=< 1; High pressure; Inert atmosphere;	98%
In water at 210℃; for 24h; Autoclave;
With Rochelle's salt In water at 200℃; for 24h; Temperature; Autoclave;

hydrogenchloride (7647-01-0) + sodium molybdate dihydrate (7631-95-0) + N,N-dimethyl-formamide (68-12-2, 33513-42-7) → bis(N,N-dimethylformamide)dichloridodioxidomolybdenum(VI) (21356-99-0, 18078-67-6)

Conditions	Yield
Stage #1: hydrogenchloride; sodium molybdate dihydrate In water at 20℃; Green chemistry; Stage #2: N,N-dimethyl-formamide In diethyl ether for 0.0833333h; Green chemistry;	97.5%

pyridine-2-carbaldehyde thiosemicarbazone (3608-75-1) + sodium molybdate dihydrate (7631-95-0) + copper(II) perchlorate hexahydrate → [Cu(C5H5NHCHN2CSNH2)(H2O)]2(β-octamolybdate)

Conditions	Yield
With HClO4 In water solid ligand added to aq. soln. of Cu(ClO4)*6H2O (L:Cu=1:1), reacted for30 min, filtered, soln. added to aq. soln. of Na2MoO4*2H2O (4 equiv.), pH adjusted to 3 (HClO4), reacted for 2 h; filtered, washed (acidified H2O), dried (vac.), crystd. for 20 d, elem. anal.;	97%

1,4-diaza-bicyclo[2.2.2]octane (280-57-9) + hydrogenchloride (7647-01-0) + iron(III) chloride hexahydrate + sodium molybdate dihydrate (7631-95-0) → (H2-1,4-diazabicyclo[2.2.2]octane)(H-1,4-diazabicyclo[2.2.2]octane)[Fe(OH)6Mo6O18]*4H2O

Conditions	Yield
In water aq. soln. Na2MoO4*2H2O at 0°C was adjusted to pH 6 with 5 M HCl, FeCl3*6H2O was added, pH was adjusted to 4, stirred for 2 h at low temp., soln. aq. DABCO (pH 4, HCl) was added, stirred at room temp. for 1 h; ppt. was filtered, washed with water and EtOH and dried in air; elem. anal.;	97%
In water High Pressure; aq. soln. Na2MoO4*2H2O, FeCl3*6H2O and DABCO (pH 4, HCl) was heated in Teflon-lined autoclave at 130°C for 2 days; soln. was filtered and left at room temp. for a few days;

hydrogenchloride (7647-01-0) + sodium molybdate dihydrate (7631-95-0) + dimethyl sulfoxide (67-68-5) → dichlorobis(dimethylsulfoxide)dioxomolybdenum(VI)

Conditions	Yield
Stage #1: hydrogenchloride; sodium molybdate dihydrate In water at 20℃; Green chemistry; Stage #2: dimethyl sulfoxide In diethyl ether for 0.0833333h; Green chemistry;	97%

sodium molybdate dihydrate (7631-95-0) + N-phenylhexanohydroxamic acid (25310-12-7) → MoO2(CH3(CH2)4C(O)N(C6H5)O)2

Conditions	Yield
With HCl In ethanol; water addn. of 2 equiv. ligand (in EtOH) to aq. molybdate (stirring), pptn. onpH-adjustment to 3 (HCl); recrystn. (hot EtOH);	96%

sodium molybdate dihydrate (7631-95-0) + tetrabutylammomium bromide (1643-19-2) → bis(tetrabutylammonium) hexamolybdate

Conditions	Yield
With hydrogenchloride In water; acetone for 5h;	96%
With hydrogenchloride In water at 75 - 80℃; for 0.75h;	78%

sodium molybdate dihydrate (7631-95-0) + water (7732-18-5) + [tris(ethylendiamine)cobalt(III) chloride]*1.5H2O → [tris(ethylendiamine)cobalt(III)]2[Mo7O24]*8H2O

Conditions	Yield
With hydrogenchloride; succinic acid at 20℃; for 168h; pH=4; Temperature; Concentration;	95.3%

sodium molybdate dihydrate (7631-95-0) + tris(ethylenediamine)nickel(II) nitrate → nickel(II) tris(ethylene diamine) molybdate

Conditions	Yield
In water	95%
In ethanol; water react. of alc. Na2MoO4*2H2O-soln. with very concd. aq. (Ni(NH2C2H4NH2)3)(NO3)2-soln.;; pptn., washing with 96% alc. and with ether;;
In ethanol; water react. of alc. Na2MoO4*2H2O-soln. with very concd. aq. (Ni(NH2C2H4NH2)3)(NO3)2-soln.;; pptn., washing with 96% alc. and with ether;;

sodium molybdate dihydrate (7631-95-0) + O,O-di(2-tolyl)dithiophosphoric acid ammonium salt (40783-15-1) → Mo2O3[O,O-di(2-tolyl)dithiophosphoric acid(-H)]4

Conditions	Yield
In water aq. soln. of 2 equiv. organic ligand added dropwise to aq. Mo-compound with constant stirring; filtered; washed with ether; dried over P2O5; recrystallized from benzene:Et2O 1:2 mixt.; elem. anal.;	95%

1,4-diaza-bicyclo[2.2.2]octane (280-57-9) + hydrogenchloride (7647-01-0) + sodium molybdate dihydrate (7631-95-0) + N,N-dimethylammonium chloride (506-59-2) → (1,4-diazabicyclo[2.2.2]octane(+2H))2(dimethylammonium)0.5Na0.75(H3O)0.75[Mo8O27]*3H2O

Conditions	Yield
In water diazabicyclooctane and hydrochloride were added to aq. soln. of Mo compd.; aq. HCl was added to pH 4; stirred at room temp. for 3 h; filtered; washed (H2O, EtOH, Et2O); elem. anal.;	95%

1,4-diaza-bicyclo[2.2.2]octane (280-57-9) + sodium molybdate dihydrate (7631-95-0) + water (7732-18-5) + N,N-dimethylammonium chloride (506-59-2) → (H2DABCO)2(HDMA)0.5Na0.8(H3O)0.7[Mo8O27].3H2O

Conditions	Yield
Stage #1: 1,4-diaza-bicyclo[2.2.2]octane; sodium molybdate dihydrate; water; N,N-dimethylammonium chloride Stage #2: With hydrogenchloride In water pH=4;	95%

sodium molybdate dihydrate (7631-95-0) + N,N-dimethylammonium chloride (506-59-2) → 2C2H7N*2H(1+)*Mo7O22(2-)

Conditions	Yield
With hydrogenchloride In water at 120℃; for 6h; pH=1; Autoclave; High pressure;	95%

sodium molybdate dihydrate (7631-95-0) + N,N-bis(3,5-di-t-butyl-2-hydroxybenzyl)-N',N'-dimethylethylenediamine (188713-27-1) → [MoO2((((CH3)3C)2(O)C6H2CH2)2NCH2CH2N(CH3)2)]

Conditions	Yield
With acetic acid In methanol for 2h; Reflux;	95%

sodium molybdate dihydrate (7631-95-0) + Mg4.27Al2(OH)1254*C6H4(CO2)2(2-)*99H2O → 12Mg(2+)*6Al(3+)*36OH(1-)*Mo7O24(6-)*99H2O=Mg12Al6(OH)36(Mo7O24)*99H2O

Conditions	Yield
	94%

potassium cyanide + sodium molybdate dihydrate (7631-95-0) + water (7732-18-5) → tetrapotassium octacyanomolybdate(IV) dihydrate

Conditions	Yield
With NaBH4; H2O2; acetic acid In water; acetic acid byproducts: H2; aq. acetic acid; Na2MoO4*2H2O (0.149 mol), KCN (1.31 mol), NaBH4 (0.264 mol) dissolved inH2O; 40% acetic acid (120 ml) added dropwise (2 h, vigorous stirring); small excess of 30% H2O2 added slowly; pptd. with EtOH; recrystd. from H2O by pptn. with EtOH;	94%

sodium molybdate dihydrate (7631-95-0) + hexaammonium heptamolybdate tetrahydrate + xanthopterin hydrate (119-44-8) → 2Na(1+)*4(CH3)2SO*[Mo2O5(O2N5C6H3)2](2-) = [Na((CH3)2SO)2]2[Mo2O5(O2N5C6H3)2] (105227-46-1)

Conditions	Yield
With dimethylsulfoxide In dimethyl sulfoxide added DMSO; heated to 80°C; stirred for 50 min at 85-90°Cor at 80°C for <1 h; cooled; DMSO removed in vacuo; redissolved in DMF; pptd. with Et2O; filtered; elem. anal.;	94%

sodium molybdate dihydrate (7631-95-0) + cis-diaqua(2,2',2''-triaminotriethylamine)cobalt(III) perchlorate → molybdato(2,2',2''-triaminotriethylamine)cobalt(III) perchlorate

Conditions	Yield
In water portionwise addn. of small excess Co-complex to molybdate; cooling in ice bath (30 min), collection (filtration), washing (95% EtOH, ether); elem. anal.;	93.26%

dichloro(pentamethylcyclopentadienyl)rhodium (III) dimer + sodium molybdate dihydrate (7631-95-0) → ((η(5)-pentamethylcyclopentadienyl)Rh)4Mo4O16 * 2 H2O

Conditions	Yield
In water aq. soln. (pH 7.3) of Na2MoO4*2H2O added dropwise to suspn. of {C5Me5RhCl2}2 in water (pH 3.8); stirred for 3 h at 25°C;; recrystn. from CH2Cl2:C6H5Me (1:1); elem. anal.;;	93%

lithium tetrafluoroborate + sodium molybdate dihydrate (7631-95-0) + K(7-x)Na(x)[α-PW11O39]*14H2O + tetrabutylammomium bromide (1643-19-2) → (Bu4N)3[α-PW11O39(Mo(VI)O)]

Conditions	Yield
With hydrochloric acid In 1,4-dioxane; water byproducts: potassium tetrafluoroborate; to a soln. of LiBF4 in water was added KNa(α-PW11O39)*14H2O, to this suspn. was added a soln. of Na2MoO4*2H2O in water-dioxane and hydrochloric acid, filtered, a soln. of N(C4H9)4Br in H2O-dioxane-HCl was added; ppt. was filtered off, washed with ethanol and diethyl ether;	93%

sodium molybdate dihydrate (7631-95-0) + C5H4NHCHN2HCSNH2(1+)*Cl(1-)*H2O=C5H4NHCHN2HCSNH2Cl*H2O → (C6H4NHCHN2HCSNH2)4(β-octamolybdate)(H2O)4

Conditions	Yield
With HCl In water aq. soln. of Na2MoO4*2H2O acidified with 2 drops of HCl, treated with solid ligand (0.5 equiv.) under vigorous stirring, reacted for 2 h; filtered, washed (H2O, EtOH, acetone), dried (vac.), elem. anal.;	93%

sodium molybdate dihydrate (7631-95-0) + tetraoxo-μ-oxobis(pentamethylcyclopentadienyl)dimolybdenum(VI) + 1-butylpyridinium bromide (874-80-6) → C4H9NC5H5(1+)*(C5(CH3)5)Mo6O18(1-)=C4H9NC5H5(C5(CH3)5)Mo6O18

Conditions	Yield
With HNO3 In methanol; water byproducts: H2O; (C5(CH3)5)Mo2O5 in methanol was mixed with an aq. soln. of Na2MoO4*2H2O,aq. HNO3 was added, stirring for 2 h, bromide salt in water was added; ppt. was filtered off, washed with small portions of water, methanol anddiethyl ether, dried under vac. at 70°C; elem. anal.;	93%

pyridine (110-86-1) + hydrogenchloride (7647-01-0) + sodium molybdate dihydrate (7631-95-0) → 6MoOCl4H2O(1-)*10C5H6N(1+)*4Cl(1-)=(C5H6N)10(MoOCl4(OH2))6Cl4

Conditions	Yield
With hydrazine hydrate In neat (no solvent) byproducts: NaCl; (under Ar); hydrazine hydrate added dropwise to HCl, stirred, added to Na2MoO4*2H2O, heated to 80°C for 3 h, cooled to room temp., placedin freezer overnight, filtered, pyridine added dropwise at room temp., cooled to 0°C; ppt. dried under vac.; elem. anal.;	92.7%

sodium molybdate dihydrate (7631-95-0) + tetrahexylammonium chloride (5922-92-9) → 2N((CH2)5CH3)4(1+)*Mo2O3(O2)4(2-)=(N((CH2)5CH3)4)2[Mo2O3(O2)4]

Conditions	Yield
With hydrogenchloride; dihydrogen peroxide In water treatment of Na2MoO4 soln. with 30% H2O2, pH adjustment to 4.2 (diltd. HCl), dropwise addn. of (C6H13)4NCl (pptn.); filtration, washing (H2O, Et2O), drying in air; elem. anal.;	92%

sodium molybdate dihydrate (7631-95-0) + tetraoxo-μ-oxobis(pentamethylcyclopentadienyl)dimolybdenum(VI) + tetrabutylammomium bromide (1643-19-2) → N(C4H9)4(1+)*(C5(CH3)5)Mo6O18(1-) = [N(C4H9)4][(C5(CH3)5)Mo6O18]

Conditions	Yield
With HNO3 In methanol; water byproducts: H2O; (C5(CH3)5)Mo2O5 in methanol was mixed with an aq. soln. of Na2MoO4*2H2O,aq. HNO3 was added, stirring for 2 h, bromide salt in water was added; ppt. was filtered off, washed with small portions of water, methanol anddiethyl ether, dried under vac. at 70°C; elem. anal.;	92%

sodium molybdate dihydrate (7631-95-0) + tetraoxo-μ-oxobis(pentamethylcyclopentadienyl)dimolybdenum(VI) + tetraphenylphosphonium bromide (2751-90-8) → P(C6H5)4(1+)*(C5(CH3)5)Mo6O18(1-)=P(C6H5)4(C5(CH3)5)Mo6O18

Conditions	Yield
With HNO3 In methanol; water byproducts: H2O; (C5(CH3)5)Mo2O5 in methanol was mixed with an aq. soln. of Na2MoO4*2H2O,aq. HNO3 was added, stirring for 2 h, bromide salt in water was added; ppt. was filtered off, washed with small portions of water, methanol anddiethyl ether, dried under vac. at 70°C; elem. anal.;	92%

Upstream product

• 1310-73-2 sodium hydroxide 
• 497-19-8 sodium carbonate 
• 7732-18-5 water 

Downstream Products

• 28125-87-3 Flutonidine 
• 60187-14-6 (C₆H₅As)2Mo₆O₂₄^(4-)*4(C₄H₉)4N⁽¹⁺⁾=[(C₆H₅As)2Mo₆O₂₄](N(C₄H₉)4)4 
• 174831-95-9 MoO₂⁽²⁺⁾*ON(C₆H₅)C(O)(CH₂)2C(O)N(C₆H₅)O^(2-)=MoO₂(ON(C₆H₅)C(O)(CH₂)2C(O)N(C₆H₅)O) 
• 174831-97-1 MoO₂⁽²⁺⁾*ON(C₆H₅)C(O)(CH₂)5C(O)N(C₆H₅)O^(2-)=MoO₂(ON(C₆H₅)C(O)(CH₂)5C(O)N(C₆H₅)O) 
• 174831-96-0 MoO₂⁽²⁺⁾*ON(C₆H₅)C(O)(CH₂)3C(O)N(C₆H₅)O^(2-)=MoO₂(ON(C₆H₅)C(O)(CH₂)3C(O)N(C₆H₅)O) 
• 174832-02-1 MoO₂⁽²⁺⁾*ON(C₆H₄CH₃)C(O)(CH₂)7C(O)N(C₆H₄CH₃)O^(2-)=MoO₂(ON(C₆H₄CH₃)C(O)(CH₂)7C(O)N(C₆H₄CH₃)O) 
• 174832-03-2 MoO₂⁽²⁺⁾*ON(C₆H₄C₂H₅)C(O)(CH₂)5C(O)N(C₆H₄C₂H₅)O^(2-)=MoO₂(ON(C₆H₄C₂H₅)C(O)(CH₂)5C(O)N(C₆H₄C₂H₅)O) 
• 174831-98-2 MoO₂⁽²⁺⁾*ON(C₆H₅)C(O)(CH₂)7C(O)N(C₆H₅)O^(2-)=MoO₂(ON(C₆H₅)C(O)(CH₂)7C(O)N(C₆H₅)O) 

Relevant articles and documents

Synthesis and crystal structure of new complex sodium lanthanide phosphate molybdates Na2MIII(MoO4)(PO4)(M III = Tb, Dy, Ho, Er, Tm, Lu)

New complex sodium lanthanide phosphate molybdates Na2M III(MoO4)(PO4)(MIII=Tb, Dy, Ho, Er, Tm, Lu) have been synthesized by the ceramic method (T = 600°C, τ = 48 h), and their unit cell parameters ha