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Na2so3

Manufactured by Sinopharm
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Sourced in China

Sodium sulfite (Na2SO3) is a chemical compound used in various laboratory and industrial applications. It is a white, crystalline solid that is soluble in water. Sodium sulfite serves as an antioxidant, preservative, and reducing agent in various chemical processes.

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Lab products found in correlation

Hydrochloric acid (hcl), by Sinopharm (4 mentions) Sodium hydroxide (naoh), by Sinopharm (3 mentions) Sodium chloride (nacl), by Sinopharm (2 mentions) Kmno4, by Sinopharm (2 mentions) H2so4, by Sinopharm (1 mentions) Ticl4, by Sinopharm (1 mentions) Na2wo4 2h2o, by Sinopharm (1 mentions) K2cro4, by Sinopharm (1 mentions) Srco3, by Sinopharm (1 mentions) Nh4vo3, by Sinopharm (1 mentions) Lactic acid, by Sinopharm (1 mentions) Cuso4 5h2o, by Sinopharm (1 mentions) Nh3 h2o, by Sinopharm (1 mentions) Polyvinyl alcohol (pva), by Sinopharm (1 mentions) Bi no3 3 5h2o, by Sinopharm (1 mentions) Fecl3, by Sinopharm (1 mentions) Acrylamide, by Energy Chemical (1 mentions) Formaldehyde, by Sinopharm (1 mentions) Anhydrous calcium chloride, by Xilong (1 mentions) Formaldehyde solution, by Sinopharm (1 mentions)

7 protocols using na2so3

1

Preparation and Characterization of Arsenic Species

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All chemicals were of analytical grade and were used without further purification. NaAsO2(99.5% is Xiya Reagent Center, Sichuan, China), Na2HAsO4·7H2O (99%, Alfa Aesar, A Johnson Matthey Co., China) served as As(III) and As(V) sources, respectively. Ethanol (EtOH), tert.-butyl alcohol (TBA), NaOH, H2SO4, KBH4, HCl, and Na2SO3 were purchased from Sinopharm Chemical Reagent Co. Ltd. (Shanghai, China). Ultrapure water of 18.2 MΩ cm resistivity was obtained through a water purification system (Youpu Super Pure Technology Co., Ltd. Sichuan, China) and was used in all experiments. All the stock solutions were kept refrigerated at 4 °C.
Luo T., Wang Z., Wang Y., Liu Z, & P. Pozdnyakov I. (2019). Different Role of Bisulfite/Sulfite in UVC-S(IV)-O2 System for Arsenite Oxidation in Water. Molecules, 24(12), 2307.
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2

Synthesis of Metal Oxide Nanostructures

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Bi(NO3)3·5H2O(≥99.0%), NH4VO3(≥99.0%), NaCl(≥ 99.8%), NH3·H2O(~28%), HNO3(~68%), HBO3(≥99.8%), KOH(≥85.0%), Na2SO3(≥ 97.0%), Co(NO3)2·6H2O (≥98.5%), KMnO4(≥ 99.5%), SrCO3(≥99%), TiO2(≥99%), Rh2O3(≥ 99.8%), RuCl3·nH2O(≥98%), K2CrO4(≥98%), polyvinyl alcohol(≥99%), Zn(NO3)2·6H2O(≥99%), Na2WO4·2H2O(≥99.5%), HCl(36.0~38.0%), (NH4)2C2O4·H2O(≥99.8%), CuSO4·5H2O(≥99%), lactic acid, NaOH(≥96%), and TiCl4(≥98.0%) were purchased from Sinopharm Chemical Reagent Co., Ltd. ZnO (99.9%), Cu2O(99.9%), WO3 (≥99.0%) and low-melting-point liquid metal (bismuth indium tin ingot/Field’s metal, Bi: In: Sn = 32.5: 51: 16.5 wt%) is purchased from Thermo Fisher Scientific Inc. All chemicals were used without further purification.
Zhen C., Chen X., Chen R., Fan F., Xu X., Kang Y., Guo J., Wang L., Lu G.Q., Domen K., Cheng H.M, & Liu G. (2024). Liquid metal-embraced photoactive films for artificial photosynthesis. Nature Communications, 15, 1672.
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3

Pyrrole-Based Hydrogel Synthesis

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Pyrrole (Py) was purchased from Aladdin (Shanghai, China) as an analytical reagent (AR) and used after distillation. Acrylamide (AAm, Energy Chemical, Shanghai, China), N, N’-methylenebisAcrylamide (MBA, AR, Aladin, Shanghai, China), 2-hydroxy-2-methyl-4’-hydroxyethoxy-propiophenone (HMHEP, AR, Aladdin), Na2SO3 (AR, Sinopharm Chemical, Shanghai, China), FeCl3 (AR, Sinopharm Chemical), formaldehyde (37 wt% in H2O, Sinopharm Chemical), KOH (AR, Sinopharm Chemical), and calcium chloride anhydrous (AR, Xilong Scientific, Shantou, China) were used as received. Deionized water was used in all the experiments.
Hou S.C., Zhang D.W., Chen J., Guo X.X., Haleem A, & He W.D. (2023). Sulfonated PAM/PPy Cryogels with Lowered Evaporation Enthalpy for Highly Efficient Photothermal Water Evaporation. Polymers, 15(9), 2108.
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4

Comprehensive Inorganic Chemical Reagents

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Melamine, phenol, formaldehyde solution (37–40 wt%), methanol, HCl, NaOH, NaCl, K2CO3, KNO3, NaNO2, Na2SO4, Na2SO3, Na2S, Na2S2O3, K2Cr2O7, Sodium aceticum (NaAc), KF, KCl, KBr, KI, KMnO4, K3Fe(CN)6, K2FeO4 and Zn(OH)2 were provided by Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China). Quinine sulfate was purchased from Adamas-beta Inc. (Shanghai, China). All chemicals were of analytical grade and used directly without further purification. Ultrapure water (18.2 MΩ cm−1) used in this study was obtained from a Millipore water purification system.
Fang B., Wang P., Zhu Y., Wang C., Zhang G., Zheng X., Ding C., Gu J, & Cao F. (2018). Basophilic green fluorescent carbon nanoparticles derived from benzoxazine for the detection of Cr(vi) in a strongly alkaline environment. RSC Advances, 8(14), 7377-7382.
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5

Arsenic Removal Using Chitosan-Based Adsorbents

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Chitosan (80-95% degree of deacetylation), FeCl3•6H2O (≥99.0%), NaOH (≥96.0%), HCl (36.0-38.0%), Na3PO4•12H2O (≥98%), Na2SO3 (≥99.0%), Na2CO3 (≥98.8%), and NaNO3 (≥99.0%) were supplied by Sinopharm Chemical Reagent Co., Ltd. Na2SO4 (≥97.0%), HNO3 (70%), MgCl2•6H2O (≥99.0%), CaCl2•2H2O (≥99.0%), and H2O2 (30% wt in H2O) were obtained from Aladdin Industrial Corporation. C5H8O2 (25% in H2O), ClCH2COOH (98%), C9H23NO3Si (99%), and humic acid (HA, FA≥90%) were purchased from Shanghai Macklin Biochemical Technology Co., Ltd. C2H5OH (≥99.7%) and (CH3)2CHOH (≥99.7%) were provided by Hunan Huihong Reagent Co., Ltd. As2O3 (99.95-100%) was obtained from Shanghai Chemical Reagents Co., Ltd. All chemical reagents were directly used without further purification. Deionized water (18.2 MΩ cm -1 ) was produced by a Millipore Direct-Q3 UV system (Millipore, Molsheim, France). The As(V) stock solution of 1000 mg L -1 was prepared by dissolving As2O3 (0.66 g) in 0.1 mol L -1 NaOH, then adding excess H2O2 solution, and finally diluting to 500 mL with deionized water.
Jiang C., Zhang S, & Zhang T. (2024). Static and dynamic adsorption of arsenate from water by Fe3+ complexed with 3-aminopropyltriethoxysilane-modified carboxymethyl chitosan. Environmental science and pollution research international, 31(14).
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6

Selective Fluorescence Assay for β-Gal

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To determine the selectivity of β‐Gal over potential competitive biospecies and interferents, fluorescence emissions of XZ1208 solutions (5.0 μM) at 654 nm were measured in the presence of A. oryzae β‐Gal (0.4 U/mL), α‐L‐fucosidase (2 μg/mL, α‐fuc, HY‐P75782, MedChemExpress, Shanghai, China), cathepsin B (0.4 U/mL, CTB, C6286, Sigma‐Aldrich, St. Louis, MO, USA), cations (750 μM), anions (750 μM), and L‐arginine (750 μM) at 37°C after 1 h (λex = 484 nm). The above samples were diluted five times with ACN and transferred to quartz cuvettes to measure fluorescence. The references of the interferents used were Na2SO3, CaCl2, and Fe(NO3)3, purchased from Sinopharm (Beijing, China).
Hu L., Dong C., Wang Z., He S., Yang Y., Zi M., Li H., Zhang Y., Chen C., Zheng R., Jia S., Liu J., Zhang X, & He Y. (2023). A rationally designed fluorescence probe achieves highly specific and long‐term detection of senescence in vitro and in vivo. Aging Cell, 22(8), e13896.
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7

Cucurbit[n]urils in Sulfur-Containing Compounds

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Cucurbit[n]urils (CB[n], n = 5, 6, 7, 8) were purchased from Strem Chemicals, Inc. (MA, USA). SG and metal ions were purchased from Aladdin Reagent Co. (Shanghai, China). Na2SO3 and Na2S (Sinopharm Chemical Reagent Co., Ltd, Shanghai, China) were used as the sulfur-containing species. At the optimized pH 6.2, they exist mainly at HSO3 -and H2S (pKa1 and pKa2 for H2SO3 are about 1.9 and 7.2, while those for H2S are about 6.9 and 14.1, respectively). In this work, for convenience, we nominate them as HSO3 -and H2S throughout the text, although they should not exist in these states at pH, other than 6.2. Other reagents were of analytical grade (Sinopharm Chemical Reagent Co., Ltd, Shanghai, China) and used without any purification. Milli-Q water (18.2 MΩ; Millipore Co, Billerica, USA) was used in all of the experiments.
Tong X., Ye T., Yu Y., Gao L., Fei Y., Zhang Q., Gao H., Yan C, & Shao Y. (2020). A Fluorescently Ratiometric Natural Probe for Selective Detection of Sulfur Dioxide Derivative and Host-Guest Supramolecular Regulation. Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 36(3).
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