Halloysite Nanoclay

• CAS: 1332-58-7
• Catalog Number: ACM1332587-1
• Category: Porous Nanomaterials
• Molecular Weight: 294.19 g/mol
• Molecular Formula: H4Al2O9Si2 · 2 H2O
• 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
• Canonical 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
• InChI Key: NLYAJNPCOHFWQQ-UHFFFAOYSA-N
• 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
• 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
• Complexity: 167
• Covalently-Bonded Unit Count: 3
• EC Number: 310-194-1
• Exact Mass: 257.902462
• Formal Charge: 0
• H-Bond Acceptor: 9
• H-Bond Donor: 2
• Heavy Atom Count: 13
• ICSC Number: 1144
• MDL Number: MFCD00062311
• Monoisotopic Mass: 257.902462
• Odor: When moistened ... develops a clay-like odor
• Other Experimental: Most kaolin clays have medium bulk density, low abrasion, and compatibility with majority of toxicants;Some grades have fine particle size, high adsorption, and suspension properties;Grindability good if active ingredient is high mp solid: oil adsorption 30-35 g/100 g oil; bulk density, 20-40 lb/cu foot; and pH, 5-6;Kaolin is a unique industrial mineral because it is chemically inert over a relatively wide pH range ... is white or near white; has a good covering or hiding power when used as a pigment or extender in coating and filling; is soft and nonabrasive; has low conductivity of both heat and electricity ...;Mohs Hardness = 2.3;Fusion temp = 1850 °C; Valley abrasion number: 4 to 10; dry brightness (1t 457 nm): 75-91%;A white-burning aluminum silicate that, due to its great purity, has a high fusion point and is the most refractory of all clays. ... Has high lubricity (slipperiness)
• Refractive Index: Index of refraction = 1.549; 1.564; 1.565
• Rotatable Bond Count: 4
• RTECS Number: GF1670500
• Vapor Pressure: 0 mm Hg (approx) (NIOSH, 2016);0 mmHg (approx);0 mmHg (approx)
• Viscosity: Low viscosity