Acs reagent

Manufactured by Merck Group

Sourced in United States, Germany, India, Italy, Sweden, Sao Tome and Principe, Switzerland

ACS reagent is a high-purity chemical reagent that meets the standards set by the American Chemical Society (ACS) for analytical use. It is designed to provide reliable and consistent performance in a variety of laboratory applications.

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ACS reagent grade (23 citations) ACS reagent grade formic acid (8 citations) Silver nitrate ACS reagent (6 citations) Hydrochloric acid ACS reagent (5 citations) Ethyl acetate—ACS reagent (5 citations) Formic acid (ACS reagent) (4 citations) Urea ACS reagent (4 citations) Gallic acid monohydrate ACS reagent (3 citations) KOH(ACS reagent, (3 citations) Gold (III) chloride trihydrate (ACS reagent), (3 citations)

167 protocols using acs reagent

Nitric Acid-Based Metal Nitrate Synthesis

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The reagents used were
nitric acid (69.0–70.0%,
Baker Instra-Analyzed Reagent, J. T. Baker), sodium hydroxide (ACS
Grade, Research Products International), sodium nitrate (ACS reagent,
Aldrich Chemical Company), sodium carbonate (98%, Alfa Aesar), lead(II)
nitrate (99+%, ACS reagent, Aldrich), copper(II) nitrate hemi(pentahydrate)
(98%, ACS reagent, Sigma-Aldrich), zinc(II) nitrate hexahydrate (reagent
grade, 98%, Sigma-Aldrich), and nickel(II) nitrate hexahydrate (>99.0%).
All solutions were prepared with deionized water.

Gora E.H., Saldana S.G., Casper L.M., Coll Sijercic V., Giza O.A, & Sanders R.L. (2022). Effect of Exhausted Coffee Ground Particle Size on Metal Ion Adsorption Rates and Capacities. ACS Omega, 7(43), 38600-38612.

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Spectral and Photophysical Characterization

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The structures of the molecules under investigation are presented in Scheme 1. Cyclohexane (CH, VWR Chemicals, Radnor, PA, USA)), toluene (Tol, ACS Reagent, Sigma-Aldrich, St. Louis, MO, USA), anisole (An, Sigma-Aldrich) ethyl acetate (EtOAc, AnalaR, BDH, Mumbai, India), 1,2-dichloroethane (DCE, ACS Reagent, Sigma-Aldrich), dimethylformamide (DMF, ACS Reagent, Sigma-Aldrich), ethanol (EtOH, VWR Chemicals) and acetonitrile (AcCN, VWR Chemicals) of spectroscopic grade were purchased for the spectral and photophysical characterizations.

Mencaroni L., Cesaretti A., Carlotti B., Alebardi M., Elisei F., Ratković A., Škorić I, & Spalletti A. (2022). Tuning the Photophysics of Two-Arm Bis[(dimethylamino)styryl]benzene Derivatives by Heterocyclic Substitution. Molecules, 27(24), 8725.

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Electrodeposition of Ni-Mo Alloy Thin Films

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The electrolyte was prepared by dissolving the metal precursors and the complexing agents in the sequence of sodium citrate dihydrate (ACS reagent, Sigma Aldrich), nickel sulfate hexahydrate (Certified ACS, Fisher Scientific), sodium molybdate dihydrate (ACS reagent, Sigma Aldrich), and ammonium hydroxide (ACS reagent, Sigma Aldrich). The solution pH was corrected using NaOH and H₂SO₄. Circular gold-coated Cu electrode with an opening area of 0.65 cm² and the commercially brass plate (267 ml brass cathode, Kocour) were used as the working electrode and substrate for the linear sweep voltammetry (LSV) and Hull cell electrodeposition. The LSV was conducted using the three-electrode system (i.e., a saturated Ag/AgCl (4M KCl) and a Pt-coated titanium plate as the reference and counter electrodes, respectively) with a Princeton Applications VMP2 potentio/gavalnostat. Potential was swept from open circuit potential to −2 V, with respect to the reference electrode at the scan rate of 5 mV/s. The electrodeposition employed Pt-coated Ti mesh as anode in the 267 ml Hull cell and powered by Hewlett Packard 6655 A DC power supply. Before the reaction, the substrate was cleaned with 1 M H2SO4, rinsed with deionized water, and blow dried with nitrogen gas.

To D.T., Park S.H., Kim M.J., Cho H.S, & Myung N.V. (2022). Effects of NH4 +/citrate complexing agent ratio on Ni–Mo and Ni–Mo–O electrodeposits from ammonium citrate baths. Frontiers in Chemistry, 10, 942423.

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Synthesis and Characterization of FeHA Nanoparticles

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The synthesis and the physicochemical properties of superparamagnetic iron doped hydroxyapatite (FeHA) NPs have been extensively described in previous works (Iannotti 2017.). Briefly, for the synthesis, 10.64 g of H₃PO₄ (>85 wt% in water, Sigma-Aldrich, St. Louis, MO, USA) was dissolved in 35 mL of ultrapure water and added dropwise into a Ca(OH)₂ (ACS reagent ≥ 99.0%, Sigma-Aldrich, St. Louis, MO, USA) suspension (12.0 g in 60 mL) containing FeCl₂·4H₂O (ACS reagent ≥ 99.0%, Sigma-Aldrich, St. Louis, MO, USA) (3.08 g) and FeCl₃·6H₂O (ACS reagent ≥ 99.0%, Sigma-Aldrich, St. Louis, MO, USA) (4.24 g) in a 1 : 1 molar ratio at 45°C under vigorous stirring. After the addition of phosphoric acid was completed, the obtained solution was kept at 45°C under stirring for 3 h and then left still at room temperature overnight. FeHA in the form of powder was recovered by centrifugation (6000 rpm, 5 min, 4°C) of the reaction mixture, repeatedly rinsed with water and finally freeze-dried before any further step.

Rouchota M., Adamiano A., Iafisco M., Fragogeorgi E., Pilatis I., Doumont G., Boutry S., Catalucci D., Zacharioudaki A, & Kagadis G.C. (2021). Optimization of In Vivo Studies by Combining Planar Dynamic and Tomographic Imaging: Workflow Evaluation on a Superparamagnetic Nanoparticles System. Molecular Imaging, 2021, 6677847.

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DNA Adsorption Capacity of Soot and Charcoal

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Materials. We used low molecular weight salmon sperm double stranded DNA (lyophilised powder, Sigma Aldrich) with a size of ~30 bp except for a set of experiments where we looked into the influence of DNA length on adsorption capacity of soot and charcoal where we used salmon sperm double stranded DNA solution (UltraPure, 10 mgml -1 , ThermoFischer Scientific) with the size of ≤2000 bp. We used DNA LoBind tubes (Eppendorf) and DNase/RNase-free water (molecular biology water, LONZA, AccuGene) for preparation of all solutions and suspensions. The pH of stocks and suspensions was adjusted with 0.1 M HCl (EMSURE ACS reagent, 37%, Sigma Aldrich) and 0.1 M NaOH (ACS reagent, ≥97.0%, Sigma Aldrich) and measured with 913 Metrohm metre calibrated on a daily basis (precision ± 0.1 unit). We did not use pH buffers as they are known to modify DNA adsorption capacity. 44 We prepared 1 mM and 100 mM electrolyte stocks of NaCl (ACS reagent, ≥99%, anhydrous, Sigma Aldrich) and CaCl2 x 6H2O (ACS reagent, ≥99%, Sigma Aldrich), and soot and charcoal stock suspensions at the concentration of 50 mgml -1 . Immediately prior to an experiment, we prepared 1 mgml -1 DNA stock (30bp) by dissolving lyophilised powder in electrolyte suspension, shaked it for 15 min at 20 °C at 300 rpm on an orbital shaker and adjusted the pH.

Jelavić S., Thygesen L.G., Magnin V., Findling N., Müller S., Meklesh V., & Sand K.K. (2021). Soot and charcoal are reservoirs of extracellular DNA.

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Synthesis of Silver Nanoprism Seeds

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Ag nanoprism seed solution was synthesized by a modified chemical reduction method. In a typical synthesis, 12 mL of 0.075M trisodium citrate dihydrate (HOC(COONa)(CH2COONa)2•2H2O, ACS reagent, Sigma Aldrich), 200 μL of 0.1 M silver nitrate (AgNO3, ACS reagent, Sigma Aldrich) and 480 μL of hydrogen peroxide solution (H2O2, ACS reagent, 30wt.%, Sigma Aldrich) were dissolved in 200 mL of H2O. After that, 1.2 mL of 0.1 M freshly-prepared sodium borohydride solution (NaBH4, ≥98%, Sigma Aldrich) was added by quick injection under vigorous stirring, giving rise to a blue solution of Ag nanoprism seeds, which was then used as a stock solution.

Qi K., Zhang Y., Li J., Charmette C., Ramonda M., Cui X., Wang Y., Zhang Y., Wu H., Wang W., Zhang X, & Voiry D. (2021). Enhancing the CO₂-to-CO Conversion from 2D Silver Nanoprisms via Superstructure Assembly. ACS nano, 15(4).

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Fabrication of Nickel-Coated BCZYZ Wafers

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Typically, nickel sulfate hexahydrate (4 mL, 1 m, ACS reagent, 99 %, Aldrich) was mixed with ammonium persulfate (3 mL, 0.25 m, ACS reagent, ≥98.0 %, Aldrich) and concentrated aqueous ammonia (1 mL, 28 %, Aldrich). The mixture was then topped up with deionized water up to a total volume of 10 mL. The BCZYZ wafer was suspended in a vial with the stirred solution at RT and held for different times (0.5–12 h). Once coated, the samples were rinsed thoroughly with deionized water to eliminate all soluble salts and dried at 70 °C. In the indicated cases the deposition procedure was repeated twice. After deposition, the samples were reduced at 500 °C for 1 h in 10 % H₂+90 % N₂ unless otherwise indicated. To test the presence of Ni metal, samples were placed close to a strong magnet; for percolation, samples were tested for continuity by using a digital multimeter. FEG‐SEM (Leo 1550) was used to image the microstructure immediately after deposition, reduction, and impedance measurements. XRD diffraction (X′Pert PRO MRD X‐Ray) was used for phase identification at RT.

Ruiz‐Trejo E., Puolamaa M., Sum B., Tariq F., Yufit V, & Brandon N.P. (2016). New Method for the Deposition of Nickel Oxide in Porous Scaffolds for Electrodes in Solid Oxide Fuel Cells and Electrolyzers. Chemsuschem, 10(1), 258-265.

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Synthesis of Mesoporous Silica Nanoparticles

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Hydrochloric acid (≥37%, puriss. p.a., Fluka, ACS reagent, fuming), triblock copolymer EO20PO70EO20 (P123) (Mn ~5800, Aldrich, ammonium fluoride (≥ 98.0%, puriss. p.a., ACS reagent, Fluka), tetraethyl orthosilicate (TEOS)(reagent grade, 98%, Aldrich), heptane (99%, ReagentPlus®, Sigma-Aldrich), (3-Mercaptopropyl)trimethoxysilane (MPTMS) (Aldrich), hydrogen peroxide (≥35% at RT, purum p.a., Sigma-Aldrich), octadecyltrichlorosilane (OTS) (≥ 90%, Aldrich), chlorotrimethylsilane (TMCS) (≥ 99%, Aldrich), (3-Aminopropyl)trimethoxysilane (APTMS) (97%, Aldrich), toluene (≥ 99.5%, Sigma-Aldrich), nitric acid (≥ 64–66%, Sigma-Aldrich), sulphuric acid (95.0–98.0%, ACS reagent, Sigma-Aldrich), glycerol (≥ 99.0%, Sigma-Aldrich), acetone (≥99.9%, Sigma-Aldrich), 1,6-diisocynanatohexane (98%, Aldrich), ethanol (95%, Kemetyl), ethanol (99.5 %, Solveco), furfuryl alcohol (98%, Aldrich), methanol (99.8%, Sigma-Aldrich), and benzene (purity ≥ 99.7%, Sigma-Aldrich)) were purchased from Sigma-Aldrich, Stockholm, Sweden, and used as received.

Wu P.H., Mäkie P., Odén M, & Björk E.M. (2019). Growth and Functionalization of Particle-Based Mesoporous Silica Films and Their Usage in Catalysis. Nanomaterials, 9(4), 562.

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Synthesis of Transition Metal Phosphates

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Na₂CoP₂O₇ and NaCoPO₄ powders were synthesized using the conventional solid-state method. Stoichiometric amounts of Na₂CO₃ (ACS reagent, ⩾99%, Aldrich), CoC₂O₄ (⩾99%, Kojundo) and (NH₄)₂HPO₄ (ACS reagent 98%, Aldrich) were wet-ball milled in acetone media and heated at 300 °C under Ar media for 6 h. After grinding, the pelletized samples were calcined at 600 °C and 750 °C under Ar media for 6 h for Na₂CoP₂O₇ and NaCoPO₄, respectively. Li₂CoP₂O₇ and LiCoPO₄ powders were synthesized using the stoichiometric amounts of Li₂CO₃ (ACS reagent, ⩾99%, Aldrich), CoC₂O₄ (⩾99%, Kojundo) and (NH₄)₂HPO₄ (ACS reagent 98%, Aldrich). The precursors were mixed by ball milling, heated at 300 °C under Ar media for 6 h, pelletized and calcined at 600 °C for Li₂CoP₂O₇ and 800 °C for LiCoPO₄ under Ar media for 6 h. Amorphous Co-Pi was synthesized according to the previous report8 (link).

Kim H., Park J., Park I., Jin K., Jerng S.E., Kim S.H., Nam K.T, & Kang K. (2015). Coordination tuning of cobalt phosphates towards efficient water oxidation catalyst. Nature Communications, 6, 8253.

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Silk-Reinforced Biohybrid Materials

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Bombyx mori silk cocoons (http://www.seidentraum.biz, date of access: 14.01.2017), calcium chloride dihydrate (CaCl₂·2H₂O, ≥99%, Carl Roth), ethanol (EtOH; 99%, VWR), ethyl acetoacetate (EtAcAc, 99%, Alfa Aesar), glutaraldehyde solution (GA, 25% in H₂O, Sigma-Aldrich), hydrogen tetrachloridoaurate(III) trihydrate (HAuCl₄·3H₂O, 99.99%, Alfa Aesar), poly(ethylene oxide) (PEO₇₈₀, nominal M_w = 4600 g/mol, Sigma-Aldrich, measured M_w = 780 g/mol), PEO₈₃₀₀, (nominal M_w = 600 g/mol, abcr, measured M_w = 8300 g/mol), sodium carbonate (Na₂CO₃, 99.8%, Carl Roth), titanium isopropoxide (Ti(OiPr)₄, TTIP, 98%, abcr), disodium hydrogen phosphate (Na₂HPO₄, ACS reagent, Sigma-Aldrich), magnesium sulfate (MgSO₄, AnalaR Normapure, VWR), sodium phosphate monobasic (NaH₂PO₄, ACS reagent, Sigma Aldrich), uranyl acetate (p.a., Merck), ethanol absolute (EtOH_abs, ≥99.8%, Carl Roth), acetone (≥99.8%, Carl Roth), AGAR Low Viscosity Resin (Plano), and PLANOCARBON (Plano) were used as received. Water-free solvents were stored over 3 Å molecular sieves prior to use. All syntheses were done with Millipore water (18.2 MΩ/cm).

Krüger S., Schwarze M., Baumann O., Günter C., Bruns M., Kübel C., Szabó D.V., Meinusch R., Bermudez V.D, & Taubert A. (2018). Bombyx mori silk/titania/gold hybrid materials for photocatalytic water splitting: combining renewable raw materials with clean fuels. Beilstein Journal of Nanotechnology, 9, 187-204.

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