SO and TE powder were obtained from Ottogi Corp., Ltd. (Anyang, Republic of Korea). XG with a viscosity ranging from 1200 to 1600 cPs in a 1% solution in 1% KCl was purchased from Deosen Biochemical (Ordos) Ltd. (Ordos, Inner Mongolia, China). SL was acquired from Solae LLC. (St. Louis, MO, USA). ρ-Anisidine was purchased from Tokyo Chemical Industry Co., Ltd. (Nihonbashi-honcho, Chuo-ku, Tokyo, Japan). Sodium thiosulfate, Nile red, and Calcofluor white dyes were purchased from Sigma-Aldrich (St. Louis, MO, USA). Isooctane, acetic acid, and potassium iodide (KI) were obtained from Daejung Chemicals (Seoul, Republic of Korea). Commercial butter (Anchor butter) was purchased from Fonterra Cooperative Group Ltd. (Auckland, New Zealand). Whole egg liquid and non-fat dry milk were purchased from KC Feed Co., Ltd. (Yeongcheon, Republic of Korea) and Seoul Milk Co. (Seoul, Republic of Korea), respectively. Sugar and flour were purchased from CJ CheilJedang Co., Ltd. (Seoul, Republic of Korea).
Potassium iodide
Manufactured by Daejung Chemicals
Potassium iodide is a white, crystalline compound commonly used in laboratory settings. It has the chemical formula KI and serves as a source of iodide ions in various chemical reactions and analyses.
Automatically generated - may contain errors
Lab products found in correlation
Nile red, by Merck Group (1 mentions)
Sodium thiosulfate, by Merck Group (1 mentions)
Acetic acid, by Daejung Chemicals (1 mentions)
Isooctane, by Daejung Chemicals (1 mentions)
Hplc grade acetonitrile, by Avantor (1 mentions)
2 2 diphenyl 1 picrylhydrazyl (dpph), by Merck Group (1 mentions)
2 2 azinobis 3 ethylbenzothiazoline 6 sulfonic acid (abts), by Merck Group (1 mentions)
Acetic acid, by Samchun (1 mentions)
Ethanol, by Samchun (1 mentions)
Chloroform, by Daejung Chemicals (1 mentions)
N hexane, by Samchun (1 mentions)
Sodium thiosulfate, by Daejung Chemicals (1 mentions)
Soluble starch, by Daejung Chemicals (1 mentions)
Hydrochloric acid (hcl), by Daejung Chemicals (1 mentions)
Sodium hydroxide (naoh), by Daejung Chemicals (1 mentions)
N n dimethylformamide (dmf), by Daejung Chemicals (1 mentions)
Ethanol, by Daejung Chemicals (1 mentions)
P benzoquinone, by Daejung Chemicals (1 mentions)
Isopropanol, by Daejung Chemicals (1 mentions)
Silver nitrate, by Merck Group (1 mentions)
5 protocols using potassium iodide
1
Characterization of Emulsion-Based Food Ingredients
2
Phytochemical Analysis of Korean Perilla Oil
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The perilla cultivar Nulsaemi (Perilla frutescens (L.) Britton var. frutescens) was obtained from a farm in Gangwon-do, South Korea (38°03′05.9″ N 127°48′59.4″ E), and a bottle of virgin perilla oil (150 mL), made solely from raw perilla seeds, was purchased from a local grocery store “Hansallim” in Seoul, Republic of Korea. n-Hexane, ethanol, anhydrous monobasic sodium phosphate and acetic acid were acquired from Samchun Chemical Co. (Seoul, Republic of Korea). DPPH and ABTS were purchased from Sigma-Aldrich Co. (St. Louis, MO, USA). Chloroform, potassium iodide, sodium thiosulfate, and soluble starch were purchased from Daejung Chemicals and Metals Co. (Daejeon, Republic of Korea). All these chemical reagents were of analytical grade. High-performance liquid chromatography (HPLC)-grade acetonitrile was obtained from Burdick & Jackson (Muskegan, MI, USA), and HPLC water was acquired from J. T Baker (Phillipsburg, NJ, USA).
3
Synthesis of Zirconium-based Luminescent Textiles
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Zirconium(iv ) chloride (ZrCl4) anhydrous (≥95%) was purchased from Sigma-Aldrich (USA). 2-Aminoterephthalic acid (99%) was purchased from Thermo Fisher Scientific Inc. (USA). Rhodamine B was purchased from Seoul Chemical Co. Ltd (Korea). Ammonium oxalate monohydrate (AO, 99.5%) was purchased from Junsei Chemical Co., Ltd (Japan). N,N-Dimethylformamide (DMF, 99.5%), ethanol (99.9%), hydrochloric acid (HCl, 35–37%), chloroacetic acid (99%), sodium hydroxide (NaOH, ≥ 95%), p-benzoquinone (p-BQ, 98%), isopropanol (IPA, 99.5%), potassium iodide (KI, 99.5%), and 0.1 M of silver nitrate solution (AgNO3, 98–99%) were purchased from Daejung Chemicals (Korea). Cotton yarn (0.28 g m−1) and polypropylene (PP) yarn (0.5 g m−1) were used to weave fabrics.
4
Oxygen Nonstoichiometry Determination by Iodometric Titration
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The oxygen nonstoichiometry (δ) of catalysts at room temperature was determined by the iodometric titration method. Twenty milligrams of powder was dissolved in 10 ml of 3.5 N HCl. To this solution, 20 ml of potassium iodide (KI; Daejung) was added with a tiny amount of starch as an indicator using a small magnetic bar. Then, the solution was titrated with 0.025 N sodium thiosulfate (Na2S2O3; Daejung), until the solution color began to transform.
The chemical identification and electronic structure of all the elements in the catalysts were determined by XPS (VG ESCALAB 220i) analysis using an Al Kα x-ray source (hν = 1486.6 eV). The oxygen species on the catalyst surface were also analyzed, and the atomic ratio of hydroxyl groups (OH−) and lattice oxygen (O2−) was calculated to obtain the relative amount of oxygen vacancies in the oxygen lattice.
The chemical identification and electronic structure of all the elements in the catalysts were determined by XPS (VG ESCALAB 220i) analysis using an Al Kα x-ray source (hν = 1486.6 eV). The oxygen species on the catalyst surface were also analyzed, and the atomic ratio of hydroxyl groups (OH−) and lattice oxygen (O2−) was calculated to obtain the relative amount of oxygen vacancies in the oxygen lattice.
5
Thermochromic Reactions and Temperature-Controlled Chemistry
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Silver nitrate (Sigma-Aldrich), potassium chromate (Sigma-Aldrich), lead (II) nitrate (Daejung Chemicals & Metals Co., Ltd.), and potassium iodide (Daejung Chemicals & Metals Co., Ltd.) are used to carry out reaction experiments on precipitate formation. To examine the feasibility of the temperature-controlled-chemical reaction, iodine–starch reaction with starch powder from potato (Sigma-Aldrich) and povidone-iodine topical solution (Green Phamaceutical Co., Ltd.) is also tested. Thermochromatic ink (Artmgics, Korea) is used to observe the change in color according to temperature variation. The ink color changes according to the temperature as follows: purple in the range of 20 °C to 40 °C, pink in the range of 40 °C to 60 °C, and beige above 60 °C. The temperature of the oil medium is controlled by heating the bottom plate of the 3D DMF platform using a hot plate (PC-420D, Corning). Temperature is measured with an infrared thermometer gun (830-T1, Testo).
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