Na2so4

Manufactured by Kanto Chemical

Sourced in Japan

Sodium sulfate (Na2SO4) is an inorganic chemical compound that is a crystalline solid at room temperature. It is a white, odorless substance that is soluble in water. Sodium sulfate is commonly used as a drying agent, a filler in the production of detergents, and as a raw material in the manufacture of other chemicals.

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Sodium sulfate(Na2SO4) (2 citations)

3 protocols using na2so4

Recombinant Protein Production in E. coli

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BP1 was produced by a fermentation process using E.coli, which was previously reported in the literature^{28 ,44} and provided in an unprocessed powder form by Spiber Inc. The amino acid composition of BP1 was alanine (16.4%), tyrosine (12.0%), glutamine (23.7%), glycine (21.9%), proline (15.3%), serine (9.3%) and others (1.4%). The protein sequence structure is shown in Fig. 1.
KH₂PO₄, K₂HPO₄, NaCl, Na₂HPO₄·H₂O, NH₄Cl, MgCl₂·6H₂O, CaCl₂, FeCl₃·6H₂O, Yeast extract, and agar powder were purchased from FUJIFILM Wako Pure Chemical Co. (Osaka, Japan). Na₂SO₄, KCl, HCl, Na₂SO₄, NaHCO₃, and NaOH were purchased from Kanto Chemical Co., Inc. (Tokyo, Japan). Plysurf was purchased from DKS Co. Ltd. (Kyoto, Japan). All chemicals were of reagent grade and used without further purification. Pronase E (P5147 Protease Type XIV from Streptomyces griseus) was purchased from Sigma Aldrich, Proteinase K was purchased from TaKaRa Bio Inc (Kusatsu, Japan), and chymotrypsin was purchased from NACALAI TESQUE, INC (Kyoto, Japan).

Tachibana Y., Darbe S., Hayashi S., Kudasheva A., Misawa H., Shibata Y, & Kasuya K.I. (2021). Environmental biodegradability of recombinant structural protein. Scientific Reports, 11, 242.

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Enzymatic Assay for Lysyl Oxidase

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Poly-L-lysine hydrobromide (MW, 70,000–150,000 Da), poly-(D,L)-lysine hydrobromide (MW, 25,000–40,000 Da), and 2,6-dichloroindophenol sodium salt hydrate (DCIP) were obtained from Sigma-Aldrich Co. (St Louis, MO, USA). NaCl, (NH₄)₂SO₄, Na₂SO₄, NaSCN, and dimethyl sulfoxide (DMSO) were obtained from Kanto Chemical Co., Inc. (Tokyo, Japan). Tris(hydroxymethyl)aminomethane was obtained from Nacalai Tesque (Kyoto, Japan). 2-Morpholinoethanesulfonic acid monohydrate and 3-[4-(2-Hydroxyethyl)-1-piperazinyl] propanesulfonic acid (EPPS) were obtained from Dojindo Laboratories (Kumamoto, Japan). l-lactic acid was obtained from Tokyo Chemical Industry Co., Ltd. (Tokyo, Japan). Rhodamine B isothiocyanate (RBITC) was obtained from Santa Cruz Biotechnology (Dallas, TX). LOX was prepared as previously described^{46 (link)}.

Ura T., Kagawa A., Sakakibara N., Yagi H., Tochio N., Kigawa T., Shiraki K, & Mikawa T. (2023). Activation of L-lactate oxidase by the formation of enzyme assemblies through liquid–liquid phase separation. Scientific Reports, 13, 1435.

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Photocatalytic Hydrogen Production from Nanosheets

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Photocatalytic reactions were performed in an air-free, glass, closed circulation system. A top-irradiation type reaction cell made of Pyrex glass was used, combined with a cooling water bath to maintain the temperature of the reactor at approximately 293 K throughout the reaction. In each reaction, a 50 mg quantity of the restacked nanosheets was suspended in an aqueous solution (100 mL) containing various salts [NaI (≥99.5%, Kanto Chemical Co.), KI (≥99.5%, Kanto Chemical Co.), Na₂SO₄ (≥99.0%, Kanto Chemical Co.), or K₂SO₄ (≥99.0%, Kanto Chemical Co.)]. After degassing the reaction cell, a small amount (ca. 3 kPa) of argon gas was introduced and the suspension was irradiated using a 300 W xenon lamp (λ ≥ 300 nm) to photoexcite KCa₂Nb₃O₁₀ that has a band gap of ca. 3.6 eV. The light intensity at 350 nm was approximately 1.1 × 10⁻³ einstein per h. The evolved gases were analyzed by gas chromatography (Shimadzu, GC-8A with a TCD detector and an MS-5A column, argon carrier gas).

Oshima T., Wang Y., Lu D., Yokoi T, & Maeda K. (2018). Photocatalytic overall water splitting on Pt nanocluster-intercalated, restacked KCa2Nb3O10 nanosheets: the promotional effect of co-existing ions. Nanoscale Advances, 1(1), 189-194.

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