Na2s 9h2o

Manufactured by Sinopharm

Sourced in China

Na2S·9H2O is a chemical compound that is commonly used as a laboratory reagent. It is a crystalline solid with the chemical formula Na2S·9H2O, which represents sodium sulfide nonahydrate. This compound is soluble in water and is often used in various chemical reactions and analyses.

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5 protocols using na2s 9h2o

Gelatin-based Nanoparticle Synthesis

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Gelatin type B was obtained
from Aladdin Chemistry Co. Ltd. (Shanghai). Carbonate–bicarbonate
(CB) buffer and D₂O were obtained from Beijing InnoChem
Science & Technology Co. Ltd. CuCl₂·2H₂O, poly(vinylpyrrolidone), Na₂S·9H₂O,
sodium citrate (C₆H₅Na₃O₇), folic acid, N-hydroxysuccinimide (NHS), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide
(EDC), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride,
dimethyl sulfoxide (DMSO), 4% paraformaldehyde fixing solution, 0.25%
trypsin, and glutaraldehyde were purchased from Sinopharm Chemical
Reagent Co., Ltd. Dulbecco’s modified Eagle’s medium
(DMEM), fetal bovine serum (FBS), and penicillin/streptomycin were
obtained from Gibco (Thermos Fisher Scientific). 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenylte-trazolium
bromide (MTT), 4′,6-diamidine-2′-phenylindole dihydro-chloride
(DAPI), 2′-(4-ethoxyphenyl)-5-(4-methyl-1-piperazinyl)-2,5′-bi-1H-benzimidazole, trihydrochloride (Hoechst 33342), and propidium
iodide (PI) were purchased from Beijing Solarbio Bio-Tech Co. Ltd.
(China). All other reagents used in this research were of analytical
grade.

Xia Y., Xu R., Ye S., Yan J., Kumar P., Zhang P, & Zhao X. (2023). Microfluidic Formulation of Curcumin-Loaded Multiresponsive Gelatin Nanoparticles for Anticancer Therapy. ACS Biomaterials Science & Engineering, 9(6), 3402-3413.

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Colorimetric Detection of Biomolecules

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Chlorauric acid (HAuCl₄∙3H₂O), potassium tetrachloroplatinate (II) (K₂PtCl₄), cetyltrimethylammonium bromide (CTAB), hydrogen peroxide, L-ascorbic acid (AA), 3,3′,5,5′-tetramethylbenzidine (TMB), cysteine, L-glutathione reduced (GSH), L-glutathione oxidized (GSSG), horseradish peroxidase and sodium hydrosulfide (NaHS) were purchased from Alfa Aesar. FeSO₄∙6H₂O, Co(NO₃)₂∙6H₂O, ZnSO₄, CuSO₄, Mg₂SO₄, Na₂S∙9H₂O, glucose, uric acid and glycine were obtained from Sinopharm Chemical Reagent Co., Ltd. Milli-Q water (18 MΩ cm) was used in the preparation of all solutions.

He W., Han X., Jia H., Cai J., Zhou Y, & Zheng Z. (2017). AuPt Alloy Nanostructures with Tunable Composition and Enzyme-like Activities for Colorimetric Detection of Bisulfide. Scientific Reports, 7, 40103.

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Synthesis of Catalysts and Electrochemical CO2 Reduction

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KOH (A. R. grade), Na₂S·9H₂O (A. R. grade), H₂SO₄ (A. R. grade), lactic acid (A. R. grade), AgNO₃ (A. R. grade), KI (A. R. grade), NaSeO₄ (A. R. grade), and Cu foam (2 mm in thickness, purity > 99.99%) were provided by Sinopharm Chemical Reagent Co., Ltd, China. Hexadecyl trimethyl ammonium bromide (CTAB), SnCl₂ (A. R. grade), Cd(NO₃)₂·4H₂O (A. R. grade), Zn(NO₃)₂·6H₂O (A. R. grade), and HAuCl₄ (99.995%) were purchased from Aldrich. CO₂ and N₂ (Beijing Beiwen Gas Chemical Industry Co., Ltd., research grade) had a purity of 99.999% and used as received. ¹³CO₂ (99 atom% ¹³C) was purchased from Sigma–Aldrich. Nafion N-117 membrane (0.180 mm thick, ≥0.90 meg/g exchange capacity) was purchased from Alfa Aesar China Co., Ltd. 1-butyl-3-methylimidazolium tetrafluoroborate (BMImBF₄, purity >99%), 1-ethyl-3-methylimidazolium tetrafluoroborate (EMImBF₄, purity >99%), 1-butyl-2,3-dimethylimidazolium tetrafluoroborate (BMMImBF₄, purity >99%), 1-butylimidazolium tetrafluoroborate (BImBF₄, purity >99%), 1-butyl-3-methylimidazolium trifluoromethanesulfonate (BMImOTf, purity >99%) and 1-butyl-3-methylimidazolium trifluoroacetate (BMImCF₃COO, purity >99%) were obtained from the Centre of Green Chemistry and Catalysis, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences. Aqueous solutions were prepared with deionized water (Millipore 18.2 MΩ cm).

Li P., Bi J., Liu J., Zhu Q., Chen C., Sun X., Zhang J, & Han B. (2022). In situ dual doping for constructing efficient CO2-to-methanol electrocatalysts. Nature Communications, 13, 1965.

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Analysis of Verapamil HCl Pharmaceuticals

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The origin of CdAc₂·2.5H₂O (98.5%), ZnSO₄·7H₂O (99.5%), NaBH₄ (96%), Na₂S·9H₂O (98%), Citric acid, Na₂HPO₄·12H₂O and powdered tellurium was Sinopharm Co., Ltd. (Shanghai, China) while mercaptopropanoic acid (99%) was purchased from Sigma–Aldrich (St. Louis, MO, USA). The verapamil HCl standard powder with 99% purity was from Yuancheng Saichuan Technology, Wuhan, China.
The purified water used in the study was prepared using the Direct-Q water purification system (Millipore, Billerica, MA, USA). All other chemicals used were of analytical grade with high purity.
The following commercial brands of verapamil HCl were analyzed: Verapamil HCl tablets SR, 240 mg (Abbot Arzneimittel GmbH, Neustadn am Rübenberge, Germany), batch No. 1057894; and Verapamil injection 5 mg/2 mL (Harvest Pharmaceutical, Shanghai, China), batch No. 43151201.

Muhammad S., Xu G., Wei F., Ma Y., Ma Y., Song Y., Shi M., Xu X., Cen Y, & Hu Q. (2017). Determination of Verapamil HCl in Pharmaceutical Preparations by a Fluorescent Nano Probe Based on CdTe/CdS/ZnS Quantum Dots. Nanomaterials, 7(11), 358.

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Characterization of Quantum Dots using Spectroscopy

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Fluorescence spectra were taken on a FL3C-111 TCSPC luminescence spectrometer equipped with a 20-kW xenon discharge lamp as a light source (Horiba, Kyoto, Japan). X-ray powder diffraction (XRD) spectra were taken on a Rigaku D/MAX2500V X-ray diffractometer (Rigaku, Tokyo, Japan). The microstructural features of the samples were characterized by a F200X (Semerfeld, Seattle, WA, USA) transmission electron microscope (TEM).
Thioglycolic acid (TGA), NaBH₄, CdCl₂·2.5H₂O, Na₂S·9H₂O, and ethylenediaminetetraacetic acid disodium salt (EDTA) in analytical grade and various standard solution of metal ions (K⁺, Na⁺, Mg²⁺, Ba²⁺, Al³⁺, Mn²⁺, Fe³⁺, Ca²⁺, Hg²⁺, Pb²⁺, Cu²⁺, Ag⁺, Ni⁺, Zn²⁺, Cd²⁺) were purchased from Sinopharm Chemical Reagent Co., Ltd. Analytically pure tris (hydroxymethyl) methyl aminomethane (Tris) was purchased from Aladdin company. Ultra-pure water was used in the whole experiment except for particular notations in text, and the resistivity of ultra-pure water is above 18 MΩ·cm (25 °C).

Wang D., Gao F., Wang X., Ning X., Wang K., Wang X., Wei Y, & Fujita T. (2022). Detection of Cd2+ in Aqueous Solution by the Fluorescent Probe of CdSe/CdS QDs Based on OFF–ON Mode. Toxics, 10(7), 367.

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