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H3pw12o40

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H3PW12O40 is a chemical compound that is commonly used as a laboratory reagent. It functions as a heteropolyacid, which is a class of inorganic compounds with complex structures and unique chemical properties. The specific core function of H3PW12O40 is to serve as a catalyst, acid, and oxidizing agent in various laboratory applications and research experiments.

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Lab products found in correlation

H3pmo12o40, by Merck Group (2 mentions) P25 titania, by Evonik (1 mentions) Lino3, by Merck Group (1 mentions) Lino3, by Mettler Toledo (1 mentions) Dimethyl sulfoxide (dmso), by Mettler Toledo (1 mentions) H3pw12o40, by Mettler Toledo (1 mentions) Fiveeasy f 20 ph meter, by Mettler Toledo (1 mentions) Dimethyl sulfoxide (dmso), by Merck Group (1 mentions) Ch3cn, by Merck Group (1 mentions) Linalool, by Merck Group (1 mentions) Alkali lignin, by Merck Group (1 mentions)

4 protocols using h3pw12o40

1

Hydrated Heteropolyacid Catalyst Supports

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HPA hydrates H3PW12O40 (99%, from Sigma-Aldrich) and H4SiW12O40 (99.9%, from Fluka) contained
20–28 H2O molecules per Keggin unit. DEE (>97%)
was purchased from Fisher Scientific. Catalyst supports Aerosil 300
silica and P25 titania (anatase/rutile = 3:1) were obtained from Degussa.
ZrO2 was prepared in-house, as described previously,29 and calcined at 400 °C in air for 4 h.
Al-Faze R., Kozhevnikova E.F, & Kozhevnikov I.V. (2021). Diethyl Ether Conversion to Ethene and Ethanol Catalyzed by Heteropoly Acids. ACS Omega, 6(13), 9310-9318.
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2

Conductivity and pH of Lithium Nitrate Electrolytes

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LiNO3, H3PW12O40, 1,4‐Dioxane (DO) and Dimethyl sulfoxide (DMSO) were purchased from Sigma Aldrich.
H3PW12O40 was dried at 50 °C under vacuum for 24 hours in order to remove the adsorbed water.
The electrolytes used in this work are listed below:

1 M LiNO3 in H2O

1 M LiNO3 in H2O: DMSO (1 : 1 v/v)

1 M LiNO3 in H2O: DO (1 : 1 v/v)

1 M LiNO3+1 mM H3PW12O40 in H2O

1 M LiNO3+1 mM H3PW12O40 in H2O: DMSO (1 : 1 v/v)

1 M LiNO3+1 mM H3PW12O40 in H2O: DO (1 : 1 v/v)

1 M LiNO3+10 mM H3PW12O40 in H2O

1 M LiNO3+10 mM H3PW12O40 in H2O: DMSO (1 : 1 v/v)

The conductivity of the electrolytes was measured with a Mettler Toledo conductometer at 23 °C. The pH was measured with a Mettler Toledo (Five Easy f20) pH meter at 23 °C.
Dsoke S, & Abbas Q. (2020). Benefits of Organo‐Aqueous Binary Solvents for Redox Supercapacitors Based on Polyoxometalates. Chemelectrochem, 7(11), 2466-2476.
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3

Synthesis and Characterization of Polyoxometalate Catalysts

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Linalool was purchased acquired by Sigma-Aldrich (99 wt%). Sodium hydrogen carbonate from Vetec (99 wt%). All the HPAs (i.e., H3PW12O40, H3PMo12O40, and H4SiW12O40; 99 wt%) were purchased from Sigma-Aldrich. Na2WO4·2H2O from Vetec (99 wt%), HCl(aq) (33 wt%) from Dinâmica and aqueous H3PO4(aq) (85 wt%) was from Sigma-Aldrich. CH3CN was acquired from Sigma (99 wt%) Aqueous hydrogen peroxide was from Alphatec (35 wt%). All reagents were used as received without further purification.
Vilanculo C.B., Da Silva M.J., Teixeira M.G, & Villarreal J.A. (2020). One-pot synthesis at room temperature of epoxides and linalool derivative pyrans in monolacunary Na7PW11O39-catalyzed oxidation reactions by hydrogen peroxide. RSC Advances, 10(13), 7691-7697.
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4

Lignin and Heteropoly Acid Experiments

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A commercially available alkali lignin purchased from Sigma-Aldrich (Schnelldorf, Germany) was used in the experiments. Deionized water was used in all the experiments. The two heteropoly acids, H3PW12O40 and H3PMo12O40, were bought from Sigma-Aldrich and were used as provided.
Demesa A.G., Laari A., Sillanpää M, & Koiranen T. (2017). Valorization of Lignin by Partial Wet Oxidation Using Sustainable Heteropoly Acid Catalysts. Molecules : A Journal of Synthetic Chemistry and Natural Product Chemistry, 22(10), 1625.
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