Sodium chlorite

Manufactured by Thermo Fisher Scientific

Sourced in United States, United Kingdom, China

Sodium chlorite is a chemical compound used in various industrial and laboratory applications. It is a white to pale yellow crystalline powder or granular solid. Sodium chlorite's core function is as an oxidizing agent, with applications in water treatment, disinfection, and chemical synthesis processes.

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Sodium chlorite (NaClO2, (6 citations)

11 protocols using sodium chlorite

Balsa Wood Composite Synthesis

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Balsa wood with a density of 90–110
g cm^–3 was supplied from Material AB (Sweden). Hydrogen
peroxide (30%), 1-hydroxycyclohexyl phenyl ketone (UV sensitive radical
initiator), pentaerythritol tetrakis(3-mercaptopropionate) (PETMP,
tetrafunctional thiol monomer), sodium acetate, sodium silicate, and
1,3,5-triallyl-1,3,5-triazine-2,4,6(1H,3H,5H)-trione (TATATO, trifunctional
ene monomer) were supplied from Sigma-Aldrich. Acetone, ethanol absolute
(99%), and sodium hydroxide were supplied from VWR. Acetic acid (Honey-well),
diethylallyltriaminepenta Acetic acid (DTPA, Acros Organics), magnesium
sulfate (Scharlau), and sodium chlorite (40%, Alfa Aesar) were bought
from other suppliers.

Höglund M., Johansson M., Sychugov I, & Berglund L.A. (2020). Transparent Wood Biocomposites by Fast UV-Curing for Reduced Light-Scattering through Wood/Thiol–ene Interface Design. ACS Applied Materials & Interfaces, 12(41), 46914-46922.

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Thermochromic and Photochromic Wood Composites

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Balsa wood with density of
170–200 kg m^–3 was procured from Material
AB (Sweden). Acetone, ethanol absolute (99%), and sodium hydroxide
were supplied from VWR. Hydrogen peroxide (30%), UV initiator 1-hydroxycyclohexyl
phenyl ketone, pentaerythritoltetrakis(3-mercaptopropionate)
(PETMP, tetrafunctional thiol monomer), sodium acetate, sodium silicate,
and 1,3,5-triallyl-1,3,5-triazine-2,4,6(1H,3H,5H)-trione (TATATO, trifunctional ene
monomer) were supplied from Sigma-Aldrich. Acetic acid (Honeywell),
diethylenetriaminepentaAcetic acid (DTPA, Acros Organics),
magnesium sulfate (Scharlau), and sodium chlorite (40%, Alfa Aesar)
were procured and used as received. Thermochromic (TC) and photochromic
pigments (PC) in the form of microcapsules were purchased from SFXC
dyes (United Kingdom) with average capsule diameters of 5 ± 2
and 6 ± 3 μm, respectively, as measured from SEM (Figure S1). The thermochromic pigment was based
on leuco vat dye with a reversible PCT of 31 °C, where the pigment
changed from black to colorless. The photochromic pigment was made
from a mixture of potassium nitrate (50–55%), silica (18–23%),
sodium nitrate (10–15%), and azobenzene(butylmethoxydibenzoylmethane)
(7–22%) and changes from a white to purple hue on exposure
to sunlight.

Samanta A., Chen H., Samanta P., Popov S., Sychugov I, & Berglund L.A. (2021). Reversible Dual-Stimuli-Responsive Chromic Transparent Wood Biocomposites for Smart Window Applications. ACS Applied Materials & Interfaces, 13(2), 3270-3277.

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Rice Straw Pretreatment and Characterization

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Rice straw raw material was collected from local farms in Giza, Egypt. The straw was washed with tap water to remove dirt and was left to dry in air. Sodium carbonate sodium sulfite, sodium chlorite (technical grade 80%), and glacial acetic acid were reagent grade chemicals and used as received from Fisher Scientific (Loughborough, UK). Polyamide-amine-epichlorohydrin (PAE) was a commercial grade solution with 33 wt.% solid content (~ 33%, w/w solid content, Solenis, Wilmington, Delaware, USA). PAE solution was diluted to 1 wt.% with distilled water prior to use. Lyophilized bovine serum albumin (BSA) was purchased from the Biowest Company (Naillé, France) and was used as received.

Hassan M.L., Fadel S.M., Abouzeid R.E., Abou Elseoud W.S., Hassan E.A., Berglund L, & Oksman K. (2020). Water purification ultrafiltration membranes using nanofibers from unbleached and bleached rice straw. Scientific Reports, 10, 11278.

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Basswood-Kevlar Composite Fabrication

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Basswood with dimensions of 50 × 30 × 10 mm³ (longitudinal × tangential × radial) was used in this work. Kevlar 29 yarn, produced by DuPont, was provide from Changzhou Hualike New Materials Co., Ltd. (Jiangsu, China) Sodium chlorite (NaClO₂, 80%), sulfuric acid (H₂SO₄, 72%), acetic acid (HAc, 99.7%), sodium hydroxide (NaOH, 97%), dimethyl sulfoxide (DMSO), potassium hydroxide (KOH), acetone (99.8%) and hexane (99.8%) were purchased from Fisher Scientific (Waltham, MA, USA). All chemicals were used as received without further purification. Deionized (DI) water was used for whole experimental process.

Han X., Wu W., Wang J., Tian Z, & Jiang S. (2021). Hydrogen-Bonding-Aided Fabrication of Wood Derived Cellulose Scaffold/Aramid Nanofiber into High-Performance Bulk Material. Materials, 14(18), 5444.

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Tea Extract Processing Protocol

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TLWF was gathered from local tea mill in Cameron Highlands (Pahang, Malaysia). Sodium chlorite was purchased from ACROS ORGANICS (NJ, USA) and acetic acid glacial from SYSTERM (Kuala Lumpur, Malaysia). Sodium chloride, sodium hydroxide, potassium hydroxide, and sulphuric acid were purchased from R & M Chemicals (Selangor, Malaysia). All chemicals were used as received without further purification.

Abdul Rahman N.H., Chieng B.W., Ibrahim N.A, & Abdul Rahman N. (2017). Extraction and Characterization of Cellulose Nanocrystals from Tea Leaf Waste Fibers. Polymers, 9(11), 588.

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Reagent Grade Chemicals for Analysis

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Phosphoric acid (85 wt. % in H₂O), urea (99.0–100.5%), hydrochloric acid (37%), sodium thiosulfate (99.9%), iodine (≥99.99%), m ethyl alcohol (≥99.9%), ethyl alcohol (95.0%) and isopropyl alcohol (≥99.5%) used in this study were of reagent grade and purchased from Sigma Aldrich (St. Louis, MO, USA). Sodium chlorite (80%, pure) and chlorophenol red (pure) were also of reagent grade and acquired from Acros Organics (Waltham, MA, USA). All solutions were prepared in deionized, triply distilled water (specific resistance of 18.0 Ω m).

Kazberova A., Solovov R, & Orlichenia V. (2023). Phosphorylated Cotton Cellulose as a Matrix for Generating Chlorine Dioxide. Polymers, 15(4), 967.

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Oil Palm Mesocarp Fiber Extraction

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Oil palm mesocarp fiber (OPMF) was obtained from FELDA Serting Hilir Palm Oil Mill (Kuala Lumpur, Malaysia). Before use, OPMF was washed by soaking in distilled water for 24 h, then rinsed with hot water (60 °C) and acetone prior to drying at 60 °C in an oven. This process was carried out to remove dirt adhering to the fiber surface. The dried fiber was then ground, and sieved into a particle size of <150 μm. Sodium chlorite was purchased from Acros Organics (Kuala Lumpur, Malaysia). Acetic acid glacial 99.7% was purchased from SYSTERM (Selangor, Malaysia). Sodium hydroxide, potassium hydroxide 85%, and sulphuric acid 98% were purchased from R&M Chemicals (Selangor, Malaysia). All chemicals were used as received without further purification.

Chieng B.W., Lee S.H., Ibrahim N.A., Then Y.Y, & Loo Y.Y. (2017). Isolation and Characterization of Cellulose Nanocrystals from Oil Palm Mesocarp Fiber. Polymers, 9(8), 355.

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Wheat Straw Valorization Protocol

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Wheat straws were collected from a farm in Resnik, Serbia. Hexane, methanol, hydrochloric acid, as well as sulfuric acid were obtained from Sigma-Aldrich (Tokyo, Japan). Sodium hydroxide was purchased from Fisher Scientific (Loughborough, United Kingdom), sodium chlorite from Acros Organics (Geel, Belgium), ethanol absolute from Zorka Pharma (Sabac, Serbia) and ibuprofen from Fagron B.V. (Rotterdam, The Netherlands). Commercially available MCC (Vivapur® PH101 (JRS Pharma GmbH & Co. KG, Rosenberg, Germany)) was used for comparison with prepared MCC samples. All chemicals were of analytical grade and were used as received, without any further processing.

Krivokapić J., Ivanović J., Djuriš J., Medarević D., Potpara Z., Maksimović Z, & Ibrić S. (2020). Tableting properties of microcrystalline cellulose obtained from wheat straw measured with a single punch bench top tablet press. Saudi Pharmaceutical Journal : SPJ, 28(6), 710-718.

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Antioxidant Properties of Arundo donax Extracts

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Arundo donax (A. donax) was collected from a freshwater environment in Buñol, Valencia (Spain) Gallic acid (97.5-102.5%), hydrochloric acid (37%), sulphuric acid (≥97.5%), potassium sulphate, potassium persulphate (≥99%), potassium chloride (99%), phosphate buffered saline tablets, ABTS (≥98%) and 6-hydroxy-2,5,7,8-tetramethyl chroman-2-carboxylic acid (97%), βcarotene (≥97%), linoleic acid (≥99%), Tween ® 40, 2-Thiobarbituric acid (98%), ethylenediaminetetraacetic acid disodium salt dehydrate (98.5-101.5%), propyl gallate, were obtained from Sigma-Aldrich (Spain). Sodium chlorite 80% was obtained from Acros organics (Spain). The Folin-Ciocalteau reagent, modified Lowry reagent and bovine serum albumin were obtained from the "modified Lowry protein assay kit" purchased from Thermo Fisher scientific (Spain).

Fontes-Candia C., Erboz E., Martínez-Abad A., López-Rubio A, & Martínez-Sanz M. (2019). Superabsorbent food packaging bioactive cellulose-based aerogels from Arundo donax waste biomass. Food Hydrocolloids., 96.

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Pineapple and Ginger Extraction

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Pineapples (Chiquita®) were purchased from a local supermarket in Baton Rouge, LA (USA) and GEO (Zingiber officinale, HIQILI®) is 100% pure and natural from Huiqili Supply Chain Manufacture. It was purchased from Amazon (USA), and were steam distilled from roots or rhizomes. Sodium chlorite, sodium hydroxide, glacial acetic acid, and sulfuric acid were purchased from Thermo Fisher Scientific (Waltham, MA, USA); A dialysis trial kit (12-14 KDa) was purchased from Avantor (Radnor, PA, USA). MilliQ water (Synergy® UV systems) was used in all experiments. All chemicals or solvents used in these experiments were of analytical grade and used as received.

Phosanam A., Moreira J., Adhikari B., Adhikari A, & Losso J.N. (2023). Stabilization of ginger essential oil Pickering emulsions by pineapple cellulose nanocrystals. Current Research in Food Science, 7, 100575.

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