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52360

Sigma-Aldrich

Hexadecyltrimethoxysilane

technical, ≥85% (GC)

Synonym(s):

Trimethoxyhexadecylsilane

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100 ML
$64.90
500 ML
$238.00

About This Item

Linear Formula:
H3C(CH2)15Si(OCH3)3
CAS Number:
Molecular Weight:
346.62
Beilstein/REAXYS Number:
1949851
EC Number:
MDL number:
UNSPSC Code:
12352103
PubChem Substance ID:
NACRES:
NA.23

$64.90


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grade

technical

Quality Level

assay

≥85% (GC)

form

liquid

impurities

isomers

refractive index

n20/D 1.44

density

0.89 g/mL at 20 °C (lit.)

SMILES string

CCCCCCCCCCCCCCCC[Si](OC)(OC)OC

InChI

1S/C19H42O3Si/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-23(20-2,21-3)22-4/h5-19H2,1-4H3

InChI key

RSKGMYDENCAJEN-UHFFFAOYSA-N

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Application

Hexadecyltrimethoxysilane (HDTMS) may be used to prepare hydrophobic silica aerogels by sol-gel process.{80} HDTMS was coated upon silica covered aluminum pigments.{81} Metal nanoparticles (CeO2, Fe2O4, TiO2, ZnO) coated with HDTMS form stable dispersions in hydrocarbon solvents. {82} HDTMS may be used to functionalize polyisocyanurate (PIR) foams {84} and graphene.{83}

Storage Class

10 - Combustible liquids

wgk_germany

WGK 1

flash_point_f

247.1 °F - closed cup

flash_point_c

119.5 °C - closed cup

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter


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Hexadecyltriethoxysilane-induced dispersions of metal oxide nanoparticles in nonpolar solvents.
Gomathi A and Rao CNR
Journal of Cluster Science, 19(1), 247-257 (2008)
Organic modification of TEOS based silica aerogels using hexadecyltrimethoxysilane as a hydrophobic reagent
Nagaraja DH, et al.
Applied Surface Science, 253(3), 1566-1572 (2006)
Corrosion protection of aluminum pigments by sol?gel coatings
Supplit R and Schubert U
Corrosion Science, 49(8), 3325-3332 (2007)
Liquid nucleating additives for improving thermal insulating properties and mechanical strength of polyisocyanurate foams.
Kang MJ, et al.
J. Mater. Sci., 45(19), 5412-5419 (2010)
Preparation and characterization of long-chain alkyl silane-functionalized graphene film.
Ma WS, et al.
J. Mater. Sci., 48(1), 156-161 (2013)

Articles

Silica's versatility spans various industries, including biomedical applications.

Questions

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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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