Cobalt 2 chloride hexahydrate

Manufactured by Thermo Fisher Scientific

Sourced in France, Morocco, China, Germany

Cobalt (II) chloride hexahydrate is an inorganic chemical compound with the formula CoCl2·6H2O. It is a hygroscopic, crystalline solid that is typically blue in color. The compound is widely used in various laboratory applications, serving as a desiccant and indicator of humidity due to its color-changing properties.

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Close spelling variants of this product

Cobalt chloride (11 citations) Cobalt chloride hexahydrate (5 citations) Cobalt (II) chloride hexahydrate (CoCl2·6H2O) (2 citations)

9 protocols using cobalt 2 chloride hexahydrate

Analytical Chemical Characterization

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All chemicals used in this study are analytical grade and used without further purification, including potassium carbonate (K₂CO₃), potassium hydroxide (KOH), sulfuric acid (H₂SO₄), and nitric acid (HNO₃).
Other chemicals include 2,5-Hexandione and terephthaldehyde from (Alfa Aeser), sodium hydroxide, anhydrous ferric (III) chloride, zinc acetate, copper (II) acetate hydrate, cobalt (II) chloride hexahydrate, and nickel (II) sulfate hexahydrate from (Fisher Scientific), methylene blue dye (Merck-Schuchardt), organic solvents acetone, ethanol, dimethyl sulfoxide (DMSO), dimethylformamide DMF are retrieved from Sigma-Aldrich and employed without extra distillation.

Sayed M.M., Abd El-Hamid I.S., M. El-Bery H., Farrag M., Abdelhakiem A.K, & Aly K.I. (2022). Synthesis, characterization and application of high adsorption performance of novel 1,4-polyketone. Scientific Reports, 12, 16317.

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Synthesis of Metal Oxide Nanomaterials

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Ethanol, acetone, hydrazine
hydrated (N₂H₄·H₂O), polyvinylpyrrolidone
(PVP), sodium hydroxide (NaOH), polyvinyl alcohol (PVA), sodium nitrate
(NaNO₃), sulfuric acid (H₂SO₄), hydrochloric
acid (HCl), cobalt(II) chloride hexahydrate (CoCl₂·6H₂O), and nickel(II) chloride hexahydrate (NiCl₂·6H₂O) were purchased from Fisher Scientific. Potassium permanganate
(KMnO₄) and ethylene glycol were purchased from Merck,
India, and graphite powder (mean particle size of <20 mm) were
purchased from Sigma-Aldrich. All the chemicals were used without
further purification. Distilled water was used throughout the experiment.

Makkar P, & Ghosh N.N. (2020). Snowflake-Like Dendritic CoNi Alloy-rGO Nanocomposite as a Cathode Electrode Material for an All-Solid-State Flexible Asymmetric High-Performance Supercapacitor Device. ACS Omega, 5(18), 10572-10580.

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Metal Binding Assay of 6xHis-Apo-SufU

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6xHis-Apo-SufU (100 µM) was incubated with 0.5 mM of metal solution (Ferric chloride, ammonium iron (II) sulfate hexahydrate, Zinc chloride, Cobalt (II) chloride hexahydrate (Acros Organics, Cole-Parmer, France), copper (II) chloride dehydrate, manganese chloride tetrahydrate, Nickel (II) sulfate hexahydrate (Acros Organics), or nickel(II) sulfate hexahydrate (Acros Organics)) and 0.5 mM EDTA in buffer E (final volume = 50 µL) for 3 h at room temperature. Samples were then loaded onto a NAP-10 column equilibrated with buffer E to remove excess metal.

Elchennawi I., Carpentier P., Caux C., Ponge M, & Ollagnier de Choudens S. (2023). Structural and Biochemical Characterization of Mycobacterium tuberculosis Zinc SufU-SufS Complex. Biomolecules, 13(5), 732.

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Synthesis of Organometallic Complexes

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All materials were used as received unless otherwise noted. Acetic acid (≥99.7%), cadmium(II) acetate dihydrate (98%), 3-chloroperoxybenzoic acid (m-CPBA, 77% max), copper(II) sulphate pentahydrate (>98%), dichloromethane (≥99.5%), ferrocene (98%), lead(II) acetate trihydrate (>99%), mercury(II) chloride (99%), zinc(II) nitrate hexahydrate (98%) were purchased from Sigma-Aldrich, MeReO₃ from Strem Chemical, toluene (99.98%) from OmniSolv EMD, HCl (1.0 N) from EMD Chemicals, cobalt(II) chloride hexahydrate (97%), nickel(II) chloride hexahydrate from Acros Organics, quartz wool (12 µm diameter), and Ar and H₂(5%)/Ar high purity gases were purchased from Matheson TRIGAS. Triphenylphosphine (Aldrich) was recrystallized from EtOH.

Alagappan P.N., Heimann J., Morrow L., Andreoli E, & Barron A.R. (2017). Easily Regenerated Readily Deployable Absorbent for Heavy Metal Removal from Contaminated Water. Scientific Reports, 7, 6682.

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Synthesis of Magnetic Nanoparticle Complexes

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Iron (III) acetylacetonate ((Fe(acac)₃) was purchased from ACROS Organics (Fair Lawn, NJ). Oleylamine was purchased from Sigma-Aldrich (St. Louis, MO). Oleic acid, manganese (II) chloride tetrahydrate (MnCl₂·4H₂O), and cobalt (II) chloride hexahydrate (CoCl₂·6H₂O) were obtained from Alfa Aesar (Ward Hill, MA). Oleic acid-coated iron oxide nanoparticles (IONP, 15 nm) dispersed in tetrahydrofuran (THF) and iron oxide nanoparticles with carboxylic acid were obtained from Ocean NanoTech (San Diego, CA). Trioctyl ether and n-octyl ether were purchased from Tokyo chemical industry Co. (Tokyo, Japan). m-PEG–PCL (methoxy poly(ethylene glycol)-b-poly(ε-caprolactone), MW: 5k-10k) was obtained from Advanced Polymer Materials Inc. (Montreal, Canada). SiNc (silicon 2,3-naphthalocyanine bis(trihexylsilyloxide)) was purchased from Sigma-Aldrich (Milwaukee, WI). All other chemicals and supplies were obtained from VWR International (Radnor, PA).

Albarqi H.A., Wong L.H., Schumann C., Sabei F.Y., Korzun T., Li X., Hansen M.N., Dhagat P., Moses A.S., Taratula O, & Taratula O. (2019). Biocompatible Nanoclusters with High Heating Efficiency for Systemically Delivered Magnetic Hyperthermia. ACS nano, 13(6), 6383-6395.

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Synthesis of Transition Metal Catalysts

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Vanadium(III) chloride (VCl₃, ≥99.0%), chromium(III) chloride hexahydrate (CrCl₃·6H₂O, ≥98.0%), manganese(II) acetate tetrahydrate [(CH₃COO)₂Mn·4H₂O, ≥99.0%], iron(II) acetate [Fe(CO₂CH₃)₂, ≥99.99%], nickel(II) acetate tetrahydrate [Ni(OCOCH₃)₂·4H₂O, ≥99.0%], hexamethylenetetramine (HMT; C₆H₁₂N₄, ≥99.0%), and potassium hydroxide (KOH, 99.99%) were purchased from Sigma-Aldrich. Titanium(IV) oxide (TiO₂, ≥99.0%) was purchased from EMD Chemicals. Cobalt(II) chloride hexahydrate (CoCl₂·6H₂O, 99.9%) was purchased from Alfa Aesar. HiSPEC Platinum 20% on carbon (20 wt % Pt/C) with an average particle size of 3 nm was from Johnson Matthey Fuel Cells. High–surface area Ketjen Black carbon powder (EC-600JD) was purchased from AkzoNobel. Absolute ethanol, used during synthesis, was purchased from Fisher Scientific. High–surface area Ketjen Black EC-300J supported PtRu catalysts (PtRu/C, 60 wt %), D2021 Nafion dispersion (20 wt %), and AvCarb MGL190 carbon paper (190 μm thick) were purchased from the Fuel Cell Store. QAPPT (ion-exchange capacity = 2.50 ± 0.05 mmol/g, 25 ± 2 μm thick) membrane and ionomer binder were purchased from Eve Energy. Deionized water (18.2 megohm·cm) was obtained from a Barnstead Nanopure water purification system. All chemicals were used as received, without further purification.

Zeng R., Yang Y., Feng X., Li H., Gibbs L.M., DiSalvo F.J, & Abruña H.D. (2022). Nonprecious transition metal nitrides as efficient oxygen reduction electrocatalysts for alkaline fuel cells. Science Advances, 8(5), eabj1584.

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Bagasse-based Sustainable Catalysts

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Bagasse was collected from fruit shops on East West Street of Guangxi, China, which have abundant sugarcane. We purchased sodium borohydride (NaBH₄, AR), ZnCl₂ (AR), cobalt(II) chloride hexahydrate (CoCl₂·6H₂O, AR) and Mg(NO₃)₂·6H₂O (AR) from Alfa Aesar Co., Ltd. (Tianjin, China). Hydrochloric acid (HCl) was from Xilong Chemical Co., Ltd. (Shantou, China). Ultrapure water, obtained from a Millipore System (Millipore Q, Burlington, MA, USA), was used throughout the experiments.

Bu Y., Liu J., Chu H., Wei S., Yin Q., Kang L., Luo X., Sun L., Xu F., Huang P., Rosei F., Pimerzin A.A., Seifert H.J., Du Y, & Wang J. (2021). Catalytic Hydrogen Evolution of NaBH4 Hydrolysis by Cobalt Nanoparticles Supported on Bagasse-Derived Porous Carbon. Nanomaterials, 11(12), 3259.

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Synthesis and Characterization of Transition Metal Complexes

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All chemicals used in the study were of analytical grade and used without further purification. The purity of the chemicals is summarized as follows: choline chloride (Across Organics, Geel, Belgium 99%), urea (Merck, Darmstadt, Germany 99%), cobalt (II) chloride hexahydrate (Alfa Aesar, Karlsruhe, Germany 99%), nickel (II) chloride hexahydrate (Merck, Darmstadt, Germany 99%), hydrochloric acid (Merck, Darmstadt, Germany 37%), sodium hydroxide (Merck, Darmstadt, Germany >98%), peroxymonosulfate (Sigma-Aldrich, Gillingham, UK), tetracycline (Alfa Aesar, Karlsruhe, Germany 96%), methanol (Merck, Darmstadt, Germany >99.8%), and tert-butyl alcohol (Merck, Darmstadt, Germany >99.5%). All aqueous solutions were prepared using MilliQ-treated water.

Gómez E., Fons A., Cestaro R, & Serrà A. (2023). Enhanced Activation of Peroxymonosulfate for Tetracycline Degradation Using CoNi-Based Electrodeposited Films. Nanomaterials, 13(5), 790.

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Hydrothermal Synthesis of Metal-Based Nanostructures

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Iron(III) chloride hexahydrate (CAS: 10025-77-1), urea 99.3+% (CAS: 57-13-6), ethylene glycol 99% (CAS: 107-21-1), trisodium citrate dihydrate 99% (CAS: 6132-04-3), ammonium molybdate 99% (CAS 13106-76-8), zinc(II) chloride 98% (CAS 7646 85 7), and cobalt(II) chloride hexahydrate 98% (CAS 7791-13-1) were supplied by Alfa Aesar. Succinic acid (CAS: 110-15-6), ammonium hydroxide solution 25% (CAS: 1336-21-6), and nickel(II) chloride 98% (CAS 7718-54-9) were provided by Sigma-Aldrich, and cetyltrimethylammonium bromide 99% (CTAB) (CAS: 57-09-0) by Roth. Deionized water was used for all experiments.

Ramirez P.D., Lee C., Fedderwitz R., Clavijo A.R., Barbosa D.P., Julliot M., Vaz-Ramos J., Begin D., Le Calvé S., Zaloszyc A., Choquet P., Soler M.A., Mertz D., Kofinas P., Piao Y, & Begin-Colin S. (2023). Phosphate Capture Enhancement Using Designed Iron Oxide-Based Nanostructures. Nanomaterials, 13(3), 587.

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