Herein, serpentine obtained from Wadi Ghadir, Eastern desert in Egypt was subjected to grinding and sieving to get powder with fraction size <100 mesh. The chemicals used were: methylene blue (MB, C16H18ClN3S, Sigma–Aldrich, CAS 122965-43-9, and purity 98.5%), malachite green (MG, C23H25N2, Sigma-Aldrich CAS 123333-61-9, and purity 99%), hydrogen peroxide (30%, H2O2, Merck, Germany, CAS 7722-84-1), ferric chloride (FeCl3·6H2O, Loba Chemie, Mumbai, India, CAS 10025-77-1, purity 97%), iron (II) sulfate (FeSO4.7H2O, Loba Chemie, Mumbai, India, CAS 7782-63-0, purity 99%), ammonia hydroxide solution (NH4OH, Loba Chemie, CAS 1336-21-6, purity 25%), and distilled water. To obtain the required pH value, HCl (0.01 M) and NaOH (0.01 M) were used. The molecular structures of studied dyes (MG and MB) are shown in Figure 1 .
Fecl3 6h2o
Manufactured by Loba Chemie
Sourced in India
FeCl3·6H2O is a chemical compound consisting of iron(III) chloride and six water molecules. It is a crystalline solid that is soluble in water and is commonly used in various industrial and laboratory applications.
Automatically generated - may contain errors
Lab products found in correlation
C16h18cln3s, by Merck Group (1 mentions)
C23h25n2, by Merck Group (1 mentions)
Feso4.7h2o, by Loba Chemie (1 mentions)
Toluene, by Merck Group (1 mentions)
Casein, by Merck Group (1 mentions)
Glutaraldehyde, by Loba Chemie (1 mentions)
Sodium hydroxide (naoh), by Merck Group (1 mentions)
Hydrochloric acid (hcl), by Thermo Fisher Scientific (1 mentions)
Al no3 3 9h2o, by Thermo Fisher Scientific (1 mentions)
Nah2po4.2h2o, by Loba Chemie (1 mentions)
Agno3, by Merck Group (1 mentions)
Hgcl2, by Merck Group (1 mentions)
Water purifier system, by Merck Group (1 mentions)
Cr no3 3, by Merck Group (1 mentions)
Mgcl2.6h2o, by Loba Chemie (1 mentions)
Nh4h2po4, by Merck Group (1 mentions)
Cuso4 5h2o, by Loba Chemie (1 mentions)
Fecl2 4h2o, by Merck Group (1 mentions)
Na2wo4 2h2o, by Merck Group (1 mentions)
Chitosan, by Merck Group (1 mentions)
7 protocols using fecl3 6h2o
1
Serpentine-based Dye Adsorption Study
2
Casein-based Iron Oxide Nanocomposite
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Casein was purchased from Merck, Mumbai, India and used without any pretreatment. FeCl2. H2O, FeCl3.6H2O, glutaraldehyde (used as a crosslinker) were obtained from Loba Chemie, Mumbai, India. Toluene was obtained from Sigma Aldrich Co., USA, and used for preparing oil phase. Other chemicals like acetone, NaOH etc. were of analytical reagent (AR) grade and double distilled water was used throughout the experiments.
3
Synthesis of Metal-Phosphate Compounds
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The reagents used in this study included: Mg(NO3)2·6H2O (Loba Chemie Pvt. Ltd., Tarapur, Maharashtra, India), Al(NO3)3·9H2O (Fisher Scientific, Waltham, MA, USA), HCl (Fisher Scientific, Waltham, MA, USA), NaOH (EMSURE®, Merck KGaA, Darmstadt, Germany), NaH2PO4·2H2O (Loba Chemie Pvt. Ltd., Tarapur, Maharashtra, India), MnCl2·4H2O (Loba Chemie Pvt. Ltd., Tarapur, Maharashtra, India), FeCl3·6H2O (Loba Chemie Pvt. Ltd., Tarapur, Maharashtra, India), and ZnCl2 (Loba Chemie Pvt. Ltd., Tarapur, Maharashtra, India). All the chemicals used in the test were analytically pure.
4
Konjac Glucomannan Characterization and Metal Interactions
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Konjac glucomanan (KgM), with 95.8% purity, was from TCS-Mart, Thailand. (0.25% w/v KgM, 23.0 C had viscosity of 218.0 cP, Mwt was of 250 kDa). AgNO3 (analytical grade), Cr (NO3)3, HgCl2 were from Sigma Aldrich, other metal salts include KNO3, NaNO3, ZnSO4.7H20, Ca (NO3)2.4H2O, CoCl2.6H2O, CdCl2.2.5H2O, CuSO4.5H2O and Al (NO3)2.9H2O from APS Ajax Finechem, MnCl2.4H2O from QReC, Pb (NO3)2 was from Spectrum Chemical, Fe2SO4.7H2O from Merck, while FeCl3.6H2O, MgCl2.6H2O and NiCl2.8H2O were from LOBA CHEMIE. The listed chemicals were used for the selectivity and interference studies. All reagents were prepared using milli-Q water from Millipore water purifier system.
5
Synthesis of Fe/Cu/P Nanocomposite
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Iron/copper/phosphate nanocomposite (Fe/Cu/P nanocomposite) was synthesized according to Abd El-Lateef et al., 2019 method with slight modification [29 (link)]. The procedure was initiated by adding 20 ml of FeCl36H2O “8 mM” (Loba Chemie PVT. LTD) to 20 ml of CuSO4.5H2O “4 mM” (Loba Chemie PVT. LTD) with stirring (120 rpm). During this step, 16 mM of (NH4)H2PO4 (Sigma-Aldrich) was added dropwise to the copper sulfate and iron chloride mixture with continuous stirring at 80°C for 6 hours until a light green milky suspension was formed. The mixture was cooled to 25°C, filtered, and rinsed with deionized water. Finally, the obtained nanocomposite precipitate was dried in oven at 90 °C for 24 hr and used for further study.
6
Synthesis of Iron Oxide Nanoparticles
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The materials and chemicals used in this investigation were all of the analytical grades and applied without purification. These included FeCl2·4H2O (99%, Sigma-Aldrich), FeCl3·6H2O (99%, Loba Chemie), NH4OH (99%, Across), cetyl trimethyl ammonium bromide (CTAB) (99%, from Winlab, UK), tetraethyl orthosilicate, TEOS (99%, Sigma-Aldrich), methanol (99.9%, International Co. for Supp. & Med. Industries), sodium tungstate dehydrate (Na2WO4·2H2O, > 98% from Sigma-Aldrich), HNO3 (Sigma-Aldrich), and sodium molybdate obtained from Loba Chemical Co., India.
7
Chitosan-Based Magnetic Nanoparticles
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Chitosan (degree of deacetylation
≥
75%) was obtained from Sigma Aldrich. NaCl, glacial acetic acid, paraffin
liquid heavy, petroleum benzine (60–80 °C), NaOH, NaBH4, and 25% ammonia were supplied by Merck Life Sciences Pvt.
Ltd., Mumbai, India. FeCl3·6H2O was purchased
from Loba Chemie Pvt. Ltd., Mumbai, India. Alanine and 40% glyoxal
were procured from Spectrochem Pvt. Ltd., Mumbai, India. Milli-Q water
with a specific resistance of 18.2 MΩ cm (from Merck Millipore)
was used throughout the experiment.
≥
75%) was obtained from Sigma Aldrich. NaCl, glacial acetic acid, paraffin
liquid heavy, petroleum benzine (60–80 °C), NaOH, NaBH4, and 25% ammonia were supplied by Merck Life Sciences Pvt.
Ltd., Mumbai, India. FeCl3·6H2O was purchased
from Loba Chemie Pvt. Ltd., Mumbai, India. Alanine and 40% glyoxal
were procured from Spectrochem Pvt. Ltd., Mumbai, India. Milli-Q water
with a specific resistance of 18.2 MΩ cm (from Merck Millipore)
was used throughout the experiment.
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