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HEXADECYLTRIMETHOXYSILANE

CAS NO:16415-12-6
EC NO:240-464-3

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

Chemical Properties
Colorless to pale yellow liquid

About this substance
Helpful information
Hexadecyltrimethoxysilane is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, at ≥ 1 000 to < 10 000 tonnes per annum.

Hexadecyltrimethoxysilane is used by consumers, in articles, by professional workers (widespread uses), in formulation or re-packing, at industrial sites and in manufacturing.

Consumer Uses
Hexadecyltrimethoxysilane is used in the following products: adhesives and sealants and coating products. Other release to the environment of Hexadecyltrimethoxysilane is likely to occur from: indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners) and outdoor use resulting in inclusion into or onto a materials (e.g. binding agent in paints and coatings or adhesives).

Article service life
Other release to the environment of Hexadecyltrimethoxysilane is likely to occur from: outdoor use in long-life materials with low release rate (e.g. metal, wooden and plastic construction and building materials) and indoor use in long-life materials with low release rate (e.g. flooring, furniture, toys, construction materials, curtains, foot-wear, leather products, paper and cardboard products, electronic equipment).
ECHA has no public registered data indicating whether or into which articles the substance might have been processed.

Widespread uses by professional workers
Hexadecyltrimethoxysilane is used in the following products: adhesives and sealants and coating products.
Hexadecyltrimethoxysilane is used in the following areas: building & construction work.
Hexadecyltrimethoxysilane is used for the manufacture of: electrical, electronic and optical equipment and machinery and vehicles.
Other release to the environment of Hexadecyltrimethoxysilane is likely to occur from: indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners) and outdoor use resulting in inclusion into or onto a materials (e.g. binding agent in paints and coatings or adhesives).

Formulation or re-packing
Hexadecyltrimethoxysilane is used in the following products: adhesives and sealants, coating products, non-metal-surface treatment products, polymers and cosmetics and personal care products.
Release to the environment of Hexadecyltrimethoxysilane can occur from industrial use: formulation of mixtures and formulation in materials.

Uses at industrial sites
Hexadecyltrimethoxysilane is used in the following products: adhesives and sealants, coating products, polymers and laboratory chemicals.
Hexadecyltrimethoxysilane is used in the following areas: building & construction work and scientific research and development.
Hexadecyltrimethoxysilane is used for the manufacture of: chemicals, machinery and vehicles, rubber products, plastic products, electrical, electronic and optical equipment, mineral products (e.g. plasters, cement) and furniture.
Release to the environment of Hexadecyltrimethoxysilane can occur from industrial use: in the production of articles, for thermoplastic manufacture, as processing aid, as an intermediate step in further manufacturing of another substance (use of intermediates) and of substances in closed systems with minimal release.

Manufacture
Release to the environment of Hexadecyltrimethoxysilane can occur from industrial use: manufacturing of the substance.

Chemical & Physical Properties
Density    0.9±0.1 g/cm3
Boiling Point    275.1±8.0 °C at 760 mmHg
Melting Point    -1ºC
Molecular Formula    C19H42O3Si
Molecular Weight    346.621
Flash Point    135.8±21.3 °C
Exact Mass    346.290314
PSA    27.69000
LogP    8.11
Vapour Pressure    0.0±0.5 mmHg at 25°C
Index of Refraction    1.437

Hexadecyltrimethoxysilane is a silicon containing compound.

GROUPS / USES
Industrial Chemicals, Plastic, Resin & Rubber, Silicones & Silanes

Purity:99%
Type: Synthetic Intermediate
Appearance: white powder
Application: Synthetic intermediate

Hexadecyltrimethoxysilane Usage
Hexadecyltrimethoxysilane is an intermediate in organic synthesis and medicine, which is mainly used in laboratory organic synthesis and chemical pharmaceutical research and development.

Hexadecyltrimethoxysilane acts as a corrosion inhibitor. 
Hexadecyltrimethoxysilane is recommended for inorganic materials such as glass, silica, aluminium oxide, kaolin, mica and talcum powder. 
Hexadecyltrimethoxysilane offers improved blending with organic matter, enhanced mechanical properties and water-resistance. 
Hexadecyltrimethoxysilane is suitable for the protection of blank glass and coated glass such as (optical antireflex coating, vacuum antireflex coating and reflective coating).

As an organic synthesis intermediate and a pharmaceutical intermediate. 
Hexadecyltrimethoxysilane is mainly used in the laboratory organic synthesis process and chemical medicine research and development process.

IUPAC names
Hexadecyl(trimethoxy)silane
hexadecyl(trimethoxy)silane
hexadecyltrialkoxysilane
Hexadecyltrimethoxysilane
hexadecyltrimethoxysilane
Hexadecyltrimethoxysilane


SYNONYMS:
16415-12-6 [RN]
1949851
240-464-3 [EINECS]
CETYL TRIMETHOXYSILANE
Hexadecyl(trimethoxy)silan [German] [ACD/IUPAC Name]
Hexadecyl(trimethoxy)silane [ACD/IUPAC Name]
Hexadécyl(triméthoxy)silane [French] [ACD/IUPAC Name]
hexadecyltrimethoxysilane
MFCD00069149 [MDL number]
Silane, hexadecyltrimethoxy- [ACD/Index Name]
Trimethoxyhexadecylsilane
[16415-12-6]
cetyl-trimethoxy-silane
DS-3394
EINECS 240-464-3
Hexadecyl(trimethoxy)silan [ACD/IUPAC Name]
Hexadecyltrimethoxysilame
hexadecyl-trimethoxysilane
hexadecyl-trimethoxy-silane
Hexadecyltrimethoxysilane (1-(Trimethoxysilyl)hexadecane)
hexadecyltrimethoxysilane, 95%


 

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