Kmno4

Manufactured by Samchun

Potassium permanganate (KMnO4) is a chemical compound commonly used as a laboratory reagent. It is a crystalline solid with a deep purple color. The core function of KMnO4 is to serve as an oxidizing agent in various chemical reactions and analysis procedures.

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Lab products found in correlation

Acetone, by Merck Group (1 mentions) Dbtdl, by Merck Group (1 mentions) Triethylamine tea, by Junsei (1 mentions)

2 protocols using kmno4

Synthesis of High-Surface-Area MnO2 and MnO2-CuO

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MnO₂ with a specific surface area
of 398 m² g^–1 (Table 1) was synthesized from a mixture of aqueous
solutions of KMnO₄ (≥99.0%, Samchun Chemical Co.,
Ltd.) and Mn(CH₃COO)₂·4H₂O (≥99.9%,
Junsei Chemical Co., Ltd.). More specifically, an aqueous solution
of KMnO₄ was added slowly to an aqueous solution of Mn(CH₃COO)₂·4H₂O in a 2:3 molar ratio.
The precipitation of MnO₂ then took place according to
the reaction outlined in eq 1 After stirring the solution for 3 h at 25
°C, the suspension was filtered and the precipitate washed with
ultrapure water until a neutral pH was achieved. The obtained product
was then dried at 80 °C for 24 h prior to calcination at 200
°C for 24 h.
MnO₂–CuO with a specific
surface area of 388 m² g^–1 (Table 1) was synthesized
by the addition of an aqueous solution of Cu(CH₃COO)₂·H₂O (≥99.0%, Junsei Chemical Co.,
Ltd.) to an aqueous solution of the previously prepared MnO₂ in a Mn/Cu molar ratio of 4:1. Precipitation, filtration, washing,
drying, and calcination of the MnO₂–CuO catalyst
were carried out according to the above procedure for MnO₂.

Kim J., Min Y.H., Lee N., Cho E., Kim K.Y., Jeong G., Moon S.K., Joo M., Kim D.B., Kim J., Kim S.Y., Kim Y., Oh J, & Sato S. (2017). In Situ Spectroscopic and Computational Studies on a MnO2–CuO Catalyst for Use in Volatile Organic Compound Decomposition. ACS Omega, 2(10), 7424-7432.

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Graphite-MWCNT Reinforced Polyurethane Nanocomposite

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Natural graphite of an average particle size of 6 μm was obtained from Graphit Kropfmühl GmbH (grade name: Cond 5, Hauzenberg, Germany). MWCNT used was Nanocyl NC7000^TM (carbon purity >90%, diameter: 9.5 nm, and length: 1.5 μm, Nanocyl, Sambreville, Belgium,). It was used without further treatment. Poly(tetramethylene glycol) (PTMG1000, 1000 g/mol, Aldrich Chemicals, Seoul, Korea) and methyl diethanolamine (MDEA, Aldrich Chemicals, Korea) were dried and degassed at 60 °C under a vacuum for 12 h. Triethylamine (TEA, Junsei Chemicals, Tokyo, Japan) was dried on a 4 A° molecular sieve before use. Dimethylol propionic acid (DMPA; Aldrich Chemicals, Seoul, Korea) was dried at 50 °C for 2 days in a vacuum oven. Isophorone diisocyanate (IPDI; TCI, Tokyo, Japan), dimethyl acetamide (DMAc, Aldrich), 1,4-butanediol (BD, Kanto Chemicals, Tokyo, Japan), dibutyltin dilaurate (DBTDL, Aldrich), benzyl dimethyl hexadecyl ammonium chloride (BDHd-AC, Aldrich, abbreviated as Φ-N⁺(Me)₂(Et)₁₅MeCl⁻, where Φ-, Me, and Et are phenyl, -CH₃, and -CH₂CH₃, respectively), HCl (35–37%, Samchun Pure Chemical Co., Seoul, Korea), concentrated H₂SO₄ (98%, Junsei), acetone (Aldrich), KMnO₄ (99.3%, Samchun), and H₂O₄ (35%, Samchun) were used as received. DMPA solution (in DMAc, 20 wt %) and MDEA solution (in acetone, 20 wt %) were prepared before use.

Kim H.J., Han J, & Son Y. (2020). Effect of a Monomer Composition on the Mechanical Properties and Glass Transition Temperature of a Waterborne Polyurethane/Graphene Oxide and Waterborne Polyurethane/MWCNT Nanocomposite. Polymers, 12(9), 2013.

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