Halloysite nanoclay

ALDRICH/685445

Synonym: Kaolin clay

CAS Number: 1332-58-7
Empirical Formula (Hill Notation): H₄Al₂O₉Si₂ · 2 H₂O
Molecular Weight: 294.19
EC Number: 310-194-1
MDL Number: MFCD11045913
Linear Formula: Al₂Si₂O₅(OH)₄ · 2 H₂O
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-685445-100G	100 g	$88.70 1/EA	Add To Favorites
45-685445-500G	500 g	$192.00 1/EA	Add To Favorites

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This image depicts SKU: 685445-100G

Properties
Descriptions
Safety Info.
Basic Data

capacity	8.0 meq/g cation exchange capacity
color	75-96, Hunter Brightness
density	2.53 (true specific gravity)
diam. × L	30-70 nm × 1-3 μm , nanotube
form	nanopowder
InChI	1S/2Al.H4O7Si2.2H2O.2O/c;;1-8(2,3)7-9(4,5)6;;;;/h;;1-2,4-5H;21H2;;/q2+1;-2;;;;
InChI key	HEFIDAICLOZRRO-UHFFFAOYSA-N
pore size	1.26-1.34 mL/g pore volume
Quality Level	100
refractive index	n20/D 1.54
SMILES string	O.O.O[Si](O)(O[Al]=O)O[Si](O)(O)O[Al]=O
surface area	64 m²/g

Application:	Halloysite is frequently used as a reinforcement in various nanocomposites, some of which are listed here: Isotactic propylene-halloysite nanocomposites. Alloy composites by electroless/ autocatalytic deposition. Poly(butylene terephthalate) (PBT) composites. Zinc–halloysite nanotube (HNT) composite coatings. Halloysite nanotube–hydroxyapatite–hyaluronic acid films. Halloysite combined with polyamide, polypropylene, poly(ε-caprolactone) and fluroelastomers. Its tube like morphology, high aspect ratio, and low percolation enables interesting applications as reinforcements in nanocomposites.
General description:	Halloysite nanoclay has a tube like morphology. It shows low electrical, thermal conductivity and strong hydrogen interactions, on account of which the inner hydroxyl groups show greater stability than the surface hydroxyl groups in halloysite. The loss of hole water occurs at nearly 300 °C. Similar to montmorillonite, halloysite consists of two layers of aluminosilicate in 1:1 Al:Si ratio. Significant improvements in thermal, mechanical properties have been reported on addition of halloysite nanotubes in polymer composites.
Legal Information:	Product of Applied Minerals, Inc. Customers may obtain additional technical support and purchase commercial quantities at appliedminerals.com
Packaging:	100, 500 g in poly bottle

RIDADR	NONH for all modes of transport
WGK Germany	nwg
Flash Point(F)	Not applicable
Flash Point(C)	Not applicable

Density	2.53 (true specific gravity)
Refractive Index	n20/D 1.54
UNSPSC	12162002

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