Cobalt chloride

Manufactured by Sinopharm

Sourced in China

Cobalt chloride is an inorganic chemical compound with the formula CoCl2. It is a crystalline solid that is typically blue in color. Cobalt chloride is commonly used in various laboratory applications, such as in the detection of water and humidity.

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Cobalt chloride hexahydrate (12 citations) Cobalt(II) chloride hexahydrate (4 citations) Agar powder for plate culture and cobalt chloride (2 citations)

7 protocols using cobalt chloride

Synthesis of Catalysts using Transition Metal Salts

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All the materials used for synthesizing catalysts, including ethylene glycol, poly(ethylene glycol) (PEG), sodium acetate (CH₃COONa), ferric chloride (FeCl₃·6H₂O), manganese chloride (MnCl₂·H₂O), zinc chloride (ZnCl₂), cupric chloride (CuCl₂·2H₂O), nickel chloride (NiCl₂·6H₂O), cobalt chloride (CoCl₂·6H₂O), ethyl alcohol (C₂H₆O), 5,5-dimethyl-1-pyrroline N-oxide (DMPO), were purchased from Sinopharm Chemical Reagent Co., Ltd. All chemicals were used without further purification.

Sun H, & Li D. (2020). Recyclable MFe2O4 (M = Mn, Zn, Cu, Ni, Co) coupled micro–nano bubbles for simultaneous catalytic oxidation to remove NOx and SO2 in flue gas. RSC Advances, 10(42), 25155-25164.

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Synthesis of Nanoparticles Using Common Reagents

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Standard reagent sodium hypochlorite (NaClO, 50 mL 0.10 M) was purchased from Beijing Putian Genesis Biotechnology Co., Ltd. (Beijing, China) Tetrachloroauricacid hydrate (HAuCl₄·4H₂O), ascorbic acid (AA), sodium borohydride (NaBH₄), silver nitrate (AgNO₃), hexadecyltrimethylammoniumbromide (CTAB), ferric chloride hexahydrate, calcium chloride, magnesium sulfate, copper sulphate, aluminum nitrate, zinc nitrate, cobalt chloride, hydrochloric acid, nitric acid were purchased from Sinopharm Chemical Reagent Co. Ltd. (Shanghai, China).
All reagents were analytical grade and without further purification. Ultrapure water was prepared with a Milli-Q water purification system (Millipore, Bedford, MA, USA).

Ma Y., Zhu Y., Liu B., Quan G, & Cui L. (2018). Colorimetric Determination of Hypochlorite Based on the Oxidative Leaching of Gold Nanorods. Materials, 11(9), 1629.

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Cobalt Chloride and Graphene Oxide Synthesis

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The cobalt chloride (CoCl₂, 99.5%), vitamin C (VC, 99.0%), deionized water (H₂O, 99.9%), and melamine (C₃H₆N₆, 99.8%) used in the experiments were all from Sinopharm Chemical Reagent Co., Ltd., Shanghai, China. The graphene oxide aqueous solution (GO, 2 mg/mL) was provided by Suzhou TanFeng Graphene Technology Co., Ltd., Nanjing, China. The above chemicals were used directly as raw materials without further purification.

Ni C., Huang S., Koudama T.D., Wu X., Cui S., Shen X, & Chen X. (2023). Tuning the Electronic Structure of a Novel 3D Architectured Co-N-C Aerogel to Enhance Oxygen Evolution Reaction Activity. Gels, 9(4), 313.

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Synthesis of Colorful Metal-Organic Frameworks

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Cobalt chloride, 1,3,5-benzoic acid, sodium dodecyl benzene sulfonate, 2-methylimidazole, N,N-dimethyl bromide methyl formamide, and absolute ethanol were purchased from Sinopharm Chemical Reagent Co., Ltd. All the chemical reagents were used without further purification.

Yu L., Yang Q., Zhu G, & Che R. (2022). Preparation and lithium storage of core–shell honeycomb-like Co3O4@C microspheres. RSC Advances, 12(46), 29818-29825.

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Aptamer-Based Hg2+ Detection Synthesis

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Cerium nitrate hexahydrate (CeCl₃·6H₂O, AR), urea (AR), citric acid (CA, AR), hydrogen peroxide (H₂O₂, AR), potassium persulfate (K₂S₂O₈, AR), sodium phosphate dibasic dodecahydrate (Na₂HPO₄·2H₂O, AR), potassium dihydrogen phosphate (KH₂PO₄, AR), N-hydroxysuccinimide (NHS, AR), 1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide (EDC, AR), and mercuric chloride (HgCl₂, AR) were obtained from Aladdin Biochemical Technology Co., Ltd. (Shanghai, China). Cadmium nitrate (Cd(NO₃)₂, AR), sodium chloride (NaCl, AR), sodium nitrate (NaNO₃, AR), barium chloride (BaCl₂, AR), lead nitrate (Pb(NO₃)₂, AR), cobalt chloride (CoCl₂, AR), sodium sulfate decahydrate (Na₂S·9H₂O, AR), and sodium sulfate (Na₂SO₄, AR) were purchased from Sinopharm Chemical Reagents Co., Ltd. (Tianjin, China). The Hg²⁺ aptamer (5′-COOH-(CH₂)₆-TTTTTTTTTTTT-3′) was synthesized by Shanghai Sangon Biotechnology Co., Ltd. (Shanghai, China). The reagents used in this study were not subjected to purification treatment unless otherwise specified. The solutions involved were all prepared with ultrapure water (18.25 MΩ cm).

Tian C., Tang F., Guo W., Wei M., Wang L., Zhuang X, & Luan F. (2023). Electrochemiluminescence Sensor Based on CeO2 Nanocrystalline for Hg2+ Detection in Environmental Samples. Molecules, 29(1), 1.

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Solvent Purification and Drying Protocol

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Sodium citrate, carbamide, methylbenzene and cobalt chloride were obtained from Sinopharm Chemical Reagent Co. Ltd. All of the reagents are analytical grade, which can be used without further purification.
Ethanol absolute (water content ≤ 0.005%, anhydrous level, E130059), tetrahydrofuran (≥99.9%, anhydrous level, T120775), and 1,4-dioxane (HPLC, ≥99.5%, D116159) were purchased from Sigma-Aldrich. All the above solvents were dried with activated 3 Å molecular sieves.

Wei J., Li H., Yuan Y., Sun C., Hao D., Zheng G, & Wang R. (2018). A sensitive fluorescent sensor for the detection of trace water in organic solvents based on carbon quantum dots with yellow fluorescence. RSC Advances, 8(65), 37028-37034.

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Synthesis of Transition Metal Oxides

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All the reagents used were of analytical grade and used as received. Nickel chloride (NiCl₂·6H₂O), cobalt chloride (CoCl₂·6H₂O), ferric chloride (FeCl₃), manganese chloride (MnCl₂·4H₂O), chromium chloride (CrCl₃·6H₂O), and glucose (C₆H₁₂O₆) were purchased from Sinopharm Chemical Reagent Co. Ltd.

Lai D., Ling L., Su M., Kang Q., Gao F, & Lu Q. (2023). From amorphous to crystalline: a universal strategy for structure regulation of high-entropy transition metal oxides. Chemical Science, 14(7), 1787-1796.

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