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
52360
Hexadecyltrimethoxysilane
technical, ≥85% (GC)
Synonym(s):
Trimethoxyhexadecylsilane
About This Item
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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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This Item | 94907 | 409952 | 224081 |
|---|---|---|---|
| assay ≥85% (GC) | assay ≥90% (GC) | assay 85% | assay 85% |
| grade technical | grade technical | grade - | grade - |
| form liquid | form liquid | form liquid | form - |
| density 0.89 g/mL at 20 °C (lit.) | density 1.083 g/mL at 20 °C, 1.083 g/mL at 25 °C (lit.) | density 0.986 g/mL at 25 °C (lit.) | density - |
| refractive index n20/D 1.44 | refractive index n20/D 1.572 (lit.) | refractive index n20/D 1.482 (lit.) | refractive index - |
| impurities isomers | impurities - | impurities - | impurities - |
Application
- A hydrophobic modifier to modify silica nanoparticles, enabling the creation of superhydrophobic particles and composites, which are ideal for applications in coatings and textiles.
- A key component in the fabrication of durable, fluorine-free superhydrophobic coatings by modifying halloysite nanotubes embedded in silicone-acrylic polymer films.
- An additive in the development of hydrophobic aerogels based on nanocellulose, where HDTMS contributes to the creation of materials with high oil adsorption capacities.
Features and Benefits
- Thermally Stable: Suitable for high-temperature applications and thermal curing processes.
- Moisture-Sensitive: Hydrolyzes in the presence of water to form reactive silanol groups that bond covalently to surfaces.
- Long Alkyl Chain: Provides excellent surface hydrophobicity due to its high surface energy barrier.
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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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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