Halloysite Nanoclay

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  • Halloysite Nanoclay

    Catalog Number
    ACM1332587-1
    Chemical Name
    Halloysite Nanoclay
    Structure
    CAS
    1332-58-7
    Category
    Porous Nanomaterials
    Description
    Kaolin appears as odorless white to yellowish or grayish powder. Contains mainly the clay mineral kaolinite (Al2O3(SiO2)2(H₂O)2), a hydrous aluminosilicate. Kaolinite has mp 740-1785°C and density 2.65 g/cm³. Kaoline is insoluble in water but darkens and develops a earthy odor when wet.;DryPowder; DryPowder, Liquid; DryPowder, PelletsLargeCrystals, WetSolid; DryPowder, WetSolid; Liquid; OtherSolid; PelletsLargeCrystals; WetSolid; WetSolid, Liquid;WHITE POWDER.;White to yellowish or grayish powder. Odorless.;White to yellowish or grayish powder. [Note: When moistened, darkens & develops a clay-like odor.]
    Synonyms
    Aluminum silicate hydroxide, Bolus, Hydrated aluminum silicate, Kaolin, µ-{Hydrogenato(2-)-?O [(hydroxy-?O)(oxo)silyl]silicate}(dioxo)dialuminium dihydrate, Aluminum, dioxo-µ-[silicic acid (H2SiO3)ato(2-)-?O, (hydroxy-?O)oxosilyl ester]-, hydrate (1:2)
    IUPAC Name
    oxo-oxoalumanyloxy-[oxo(oxoalumanyloxy)silyl] oxysilane; dihydrate
    Molecular Weight
    258.160437
    Molecular Formula
    H2Al2Si2O8H₂O;Al2Si2O5(OH)4;Al2H4O9Si2
    SMILES
    O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O
    InChI
    InChI=1S/2Al.O5Si2.2H₂O.2O/c;;1-6(2)5-7(3)4;;;;/h;;;2*1H2;;/q2*+1;-2;;;;
    InChIKey
    NLYAJNPCOHFWQQ-UHFFFAOYSA-N
    Purity
    99%, 99.9%, 99.99%, 99.999%
    Density
    1.8-2.6 g/cm³
    Solubility
    Insoluble (NIOSH, 2016);Insoluble in water;Insoluble in ether;Insoluble in dilute acids and alkali hydroxides;Solubility in water: insoluble;Insoluble
    Appearance
    white, grayish, or yellowish powder
    MDL Number
    MFCD00062311
    EC Number
    310-194-1
    RTECS Number
    GF1670500
    Exact Mass
    257.902462
    Monoisotopic Mass
    257.902462
    Color Form
    White or yellowish-white, earhty mass or white powder; unctuous when moist;White to yellowish or grayish powder [Note: When moistened, darkens...];Triclinic;White or near white ... pseudohexagonal flakes;Fine white to light-yellow powder
    Odor
    When moistened ... develops a clay-like odor
    Vapor Pressure
    0 mm Hg (approx) (NIOSH, 2016);0 mmHg (approx);0 mmHg (approx)
    Viscosity
    Low viscosity
    Refractive Index
    Index of refraction = 1.549; 1.564; 1.565
    Formula
    Al2H4O9Si
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