Quick Search
Methyltris(Methylethylketoxime)silane is an organosilicon compound that functions primarily as a crosslinking agent and adhesion promoter in silicone-based materials, making it a key component in coatings, sealants, adhesives, and elastomers where strong bonding and chemical resistance are required.
Methyltris(Methylethylketoxime)silane consists of a silicon atom bonded to three oxime groups derived from 2-butanone, which allows it to react with moisture or silanol groups on surfaces, forming stable siloxane (Si–O–Si) networks that enhance the mechanical strength, durability, and thermal stability of the final material.
Methyltris(Methylethylketoxime)silane is particularly important in industrial and construction applications, as it improves adhesion of silicone formulations to metals, glass, ceramics, and concrete, while also increasing resistance to water, chemicals, and UV degradation.
CAS Number: 22984-54-9
Molecular Formula: C13H27N3O3Si
Molecular Weight: 301.46
EINECS Number: 245-366-4
Synonyms: Methyltris(methylethylketoxime)silane, 2-Butanone, O,O',O''-(methylsilylidyne)trioxime, methyltris(butanoneoxime)silane, Butan2one O,O',O''(methylsilanetriyl)oxime, Butan2one O,O',O''(methylsilylidyne)trioxime, 2Butanone, O,O',O''(methylsilylidyne)trioxime, 2Butanone, 2,2',2''(O,O',O''(methylsilylidyne)trioxime), 22984-54-9, MFCD00053889, 158917-50-1, (E)-N-[bis[[(E)-butan-2-ylideneamino]oxy]-methylsilyl]oxybutan-2-imine, Methyltri(2-butanoneoximyl)silane, C13H27N3O3Si, methyltris(methylethylketoximo)silane, Methyltris(methylethylketoximino)silane, SCHEMBL625283, CHEMBL3183566, Butan-2-one O-(3,6,9-trimethyl-5,7-dioxa-4,8-diaza-6-silaundeca-3,8-dien-6-yl) oxime, OGZPYBBKQGPQNU-DABLZPOSSA-N, Methyltri(ethylmethylketoximo)silane, Methyltris(2-butylideneaminooxy)silane, AKOS008901254, Methyltris(methyl ethyl ketoximino)silane, NCGC00248636-01, SY074325, Methyl tris ( methyl ethyl ketoxime) silane, NS00048867, butan-2-one O,O',O''-(methylsilanetriyl)oxime, O,O',O''-(Methylsilylidyne)tris(ethyl methyl ketoxime), (E)-N-[methyl-bis[[(E)-1-methylpropylideneamino]oxy]silyl]oxybutan-2-imine, 2-Butanone O-(3,6,9-Trimethyl-5,7-dioxa-4,8-diaza-6-silaundeca-3,8-dien-6-yl) Oxime, (2E,2'E)-Butan-2-one O-((3E)-3,6,9-trimethyl-5,7-dioxa-4,8-diaza-6-silaundeca-3,8-dien-6-yl) oxime, (2E,2'E)-Butan-2-oneO-((3E)-3,6,9-trimethyl-5,7-dioxa-4,8-diaza-6-silaundeca-3,8-dien-6-yl)oxime, METHYLTRIS(METHYLETHYLKETOXIME)SILANE;butan-2-one o,o',o''-(methylsilylidyne)trioxime;jiajisandingtongwojiguiwan;METHYL TRIS (METHYLETHYLKETOXYMO) SILANE;METHYL TRIBUTANONEOXIMESILANE;Methyltris[[(butan-2-ylidene)amino]oxy]silane;Tris[(1-methylpropylidene)aminooxy](methyl)silane;O,O',O''-(Methylsilanetriyl)tris[2-butanone oxime]
Methyltris(Methylethylketoxime)silane is used as a neutral curing agent in silicone sealant formulations.
Generally, this silane is used for crosslinking α,ω-silanol polydimethylsiloxanes in the presence of atmospheric moisture.
Methyltris(Methylethylketoxime)silane is often the main crosslinker of choice for oxime silicone sealants and can be used by itself or in combination with other oxime silanes to provide the sealant with targeted properties (such as desired cure rate, adhesion etc).
In addition, Methyltris(methylethylketoxime)silane is used in paints and protective coatings to crosslink polymer chains, providing greater hardness, flexibility, and surface resilience, and in elastomer formulations, it contributes to enhanced elasticity, dimensional stability, and long-term performance under harsh environmental conditions.
From a chemical safety perspective, Methyltris(Methylethylketoxime)silane is moisture-sensitive and can release small amounts of methyl ethyl ketoxime (MEKO) during curing, which may cause irritation to the skin, eyes, and respiratory tract.
Therefore, its use in industrial or laboratory settings requires appropriate personal protective equipment, good ventilation, and adherence to safety protocols.
Its unique chemical reactivity makes it invaluable for ensuring high-performance silicone materials in automotive, electronics, construction, and specialty coating industries, while also necessitating careful handling to mitigate potential health hazards.
Methyltris(Methylethylketoxime)silane is a silicon compound with an oxime functional group.
Acts as an adhesion promoter, coupling- & crosslinking agent, surface modifier and water scavenger.
The Methyltris(Methylethylketoxime)silane is used as a neutral curing agent in silicone sealant formulations.
Generally, this silane is used for crosslinking α,ω-silanol polydimethylsiloxanes in the presence of atmospheric moisture.
Methyltris(Methylethylketoxime)silaneis often the main crosslinker of choice for oxime silicone sealants and can be used by itself or in combination with other oxime silanes to provide the sealant with targeted properties (such as desired cure rate, adhesion etc).
Methyltris(Methylethylketoxime)silane is a colorless or yellowish transparent liquid that can be used as a neutral curing agent in silicone sealant formulations.
Methyltris(Methylethylketoxime)silane is commonly used a cross-linker for oxime silicone sealants and can be used alone or with other combinations of oxime silanes to enable the sealant with targeted properties.
Methyltris(Methylethylketoxime)silane is also highly valued in specialty coatings and surface treatments because of its ability to enhance adhesion between silicone polymers and diverse substrates, including metals, glass, ceramics, and plastics.
Its oxime-functional groups allow controlled curing reactions that produce a highly crosslinked silicone network, resulting in coatings that are resistant to abrasion, chemicals, UV radiation, and thermal degradation, making them suitable for long-term outdoor or industrial exposure. This chemical is often incorporated into moisture-curing silicone sealants, where it not only improves bonding performance but also contributes to dimensional stability and elasticity, which are essential in dynamic applications like expansion joints or automotive gaskets.
In addition to industrial uses, Methyltris(methylethylketoxime)silane finds applications in electronic encapsulation and protective coatings, where it prevents corrosion, moisture ingress, and electrical failures.
In construction and civil engineering, it can be used in formulations that protect concrete and masonry surfaces while maintaining flexibility under mechanical stress.
Methyltris(Methylethylketoxime)silanes contribution to silicone-based elastomers also improves tear resistance, elongation, and mechanical durability, which is particularly important in sealing, molding, and adhesive applications.
From a safety perspective, exposure to Methyltris(methylethylketoxime)silane requires caution because it can release methyl ethyl ketoxime (MEKO) vapors, which are potentially toxic and irritating to the respiratory system, skin, and eyes.
Prolonged or repeated exposure may lead to sensitization, dermatitis, or systemic effects such as dizziness, headaches, or nausea.
Appropriate personal protective equipment (PPE), fume hoods, and good industrial hygiene practices are essential to minimize exposure, and storage must be in airtight, moisture-free containers to prevent premature reaction and release of volatile byproducts.
Proper spill management, containment, and ventilation are crucial to protect workers and prevent environmental contamination, given the chemical’s reactivity and toxicity.
Melting point: -22 °C
Boiling point: 110 °C
Density: 0.982
Vapor pressure: 0.142 Pa at 25 °C
Refractive index: 1.4548 [25 °C]
Flash point: 90 °C
Specific gravity: 0.982
Odor: Mild odor
Viscosity: 11.577 mm²/s
Water solubility: 36.63 g/L
Hydrolytic sensitivity: 7; reacts slowly with moisture/water
InChI: InChI=1S/C13H27N3O3Si/c1-8-11(4)14-17-20(7,18-15-12(5)9-2)19-16-13(6)10-3/h8-10H2,1-7H3/b14-11-,15-12+,16-13+
InChIKey: OGZPYBBKQGPQNU-STFOEXHGSA-N
SMILES: Si(O/N=C(C)/CC)(O/N=C(C)/CC)O/N=C(/C)CC
LogP: 1.69
Methyltris(Methylethylketoxime)silane is considered a key chemical intermediate in advanced silicone chemistry, providing both crosslinking functionality and adhesion promotion in a variety of silicone-based products.
Its unique silicon–oxime structure allows it to react with atmospheric moisture to form siloxane bonds (Si–O–Si), creating a durable network that improves the mechanical properties, elasticity, and chemical resistance of cured silicone materials.
This characteristic makes it essential in the formulation of high-performance sealants, adhesives, coatings, and elastomers where long-term stability and resistance to environmental stressors such as heat, water, UV light, and chemical exposure are critical.
In industrial applications, it is frequently used in construction sealants to provide waterproofing and adhesion to surfaces like glass, concrete, metals, and ceramics, ensuring the longevity of joints and coatings.
In electronics, the compound is applied to produce protective silicone coatings that shield sensitive components from moisture, corrosion, and thermal stress.
In the automotive sector, Methyltris(Methylethylketoxime)silane contributes to silicone elastomers and adhesives that must withstand extreme temperature cycles, vibrations, and chemical exposure, ensuring both performance and durability.
From a health and safety perspective, Methyltris(methylethylketoxime)silane releases methyl ethyl ketoxime (MEKO) upon moisture contact, which is irritating to the eyes, skin, and respiratory tract, and inhalation over prolonged periods may lead to headaches, nausea, dizziness, or other systemic effects.
Skin contact may result in dermatitis or sensitization, highlighting the need for protective gloves, goggles, and clothing when handling the compound.
Additionally, adequate ventilation is necessary to prevent accumulation of vapors, and spills must be managed promptly to prevent environmental contamination and reduce exposure risks.
Overall, Methyltris(methylethylketoxime)silane is chemically reactive, industrially valuable, and potentially hazardous, requiring careful handling, proper storage in moisture-free conditions, and strict adherence to safety protocols to maximize its benefits in silicone formulations while minimizing risks to human health and the environment.
Methyltris(Methylethylketoxime)silane is not only a highly reactive organosilicon compound but also a versatile chemical intermediate used in a wide range of silicone formulations, including primers, sealants, adhesives, and moisture-curing coatings.
Its molecular structure, featuring a central silicon atom bonded to three methylethylketoxime-derived groups, enables it to undergo hydrolysis and condensation reactions in the presence of moisture, forming a tightly crosslinked siloxane network.
This reaction mechanism is essential in producing silicone-based materials that exhibit excellent adhesion, mechanical strength, chemical resistance, and weatherability, making it highly valuable in industries such as construction, electronics, automotive, and protective coatings.
In the construction sector, Methyltris(methylethylketoxime)silane is used in sealants and coatings that bond strongly to glass, concrete, metals, and ceramics, providing waterproofing, flexibility, and long-term durability under variable environmental conditions.
In electronics and automotive applications, it enhances insulation, corrosion resistance, and thermal stability of silicone coatings and adhesives, which is critical for protecting sensitive components from moisture, temperature fluctuations, and chemical exposure.
Despite its industrial advantages, Methyltris(Methylethylketoxime)silane carries potential health hazards due to its reactivity and the release of methyl ethyl ketoxime (MEKO) during curing.
Exposure to MEKO can lead to irritation of the eyes, skin, and respiratory tract, and prolonged inhalation may result in headaches, dizziness, or nausea.
Additionally, direct contact with the liquid compound can cause skin sensitization or dermatitis, emphasizing the importance of gloves, goggles, and protective clothing during handling.
Proper ventilation and containment measures are essential to minimize inhalation risks, and spills must be cleaned promptly to avoid prolonged exposure or environmental contamination.
Because of its chemical reactivity, industrial importance, and potential hazards, Methyltris(methylethylketoxime)silane must be handled carefully, stored in moisture-free containers, and used according to detailed safety protocols, ensuring both the effectiveness of the silicone formulations it produces and the safety of personnel in industrial or laboratory environments.
Uses:
Methyltris(methylethylketoxime)silane extend across construction, electronics, automotive, aerospace, and industrial maintenance sectors, making it an essential chemical for producing high-performance silicone materials that require reliability, durability, flexibility, and resistance to environmental stressors.
Its versatility, combined with its reactivity and adhesion-promoting capability, allows manufacturers to tailor silicone products to meet very demanding functional requirements that other materials cannot achieve.
Methyltris(methylethylketoxime)silane can be used as a silane coupling agent and crosslinker.
Methyltris(methylethylketoxime)silane is used as a neutral curing agent in silicone sealant formulations.
Generally, this silane is used for crosslinking α,ω-silanol polydimethylsiloxanes in the presence of atmospheric moisture.
Methyltris(Methylethylketoxime)silane is often the main crosslinker of choice for oxime silicone sealants and can be used by itself or in combination with other oxime silanes to provide the sealant with targeted properties (such as desired cure rate, adhesion etc).
Methyltris(methylethylketoxime)silane has a wide range of industrial and commercial uses due to its reactive silicon–oxime groups, which enable it to crosslink and bond with various substrates.
Methyltris(Methylethylketoxime)silane is incorporated into silicone-based sealants and adhesives to improve adhesion to glass, metals, ceramics, and plastics, providing durable, flexible, and water-resistant bonding for construction, automotive, and electronics applications.
Methyltris(Methylethylketoxime)silane is used in moisture-curing silicone coatings to enhance chemical, UV, and thermal resistance, ensuring long-term protection for surfaces exposed to harsh environments, including industrial machinery, architectural glass, and outdoor structures.
Methyltris(Methylethylketoxime)silane contributes to the crosslinking of silicone elastomers, improving mechanical strength, tear resistance, elasticity, and dimensional stability, which is essential for gaskets, molds, and dynamic sealing applications.
Methyltris(Methylethylketoxime)silane acts as an adhesion promoter in primers, allowing silicone materials to bond strongly to difficult surfaces like metals, concrete, or treated plastics, which enhances overall coating and adhesive performance.
In the electronics industry, it is used in protective silicone coatings and encapsulants to prevent moisture ingress, corrosion, and electrical failure, improving the durability and reliability of sensitive components.
Methyltris(Methylethylketoxime)silane is applied in specialty silicone formulations for concrete and masonry protection, where it provides flexibility, weather resistance, and long-term surface durability.
Methyltris(Methylethylketoxime)silane is also used in industrial maintenance coatings to improve resistance to abrasion, chemicals, and environmental degradation, extending the lifespan of equipment and structures.
Methyltris(Methylethylketoxime)silane is extensively used in high-performance silicone formulations across numerous industrial sectors due to its unique chemical structure, which combines a reactive silicon center with three oxime groups.
This structural feature allows it to undergo moisture-curing reactions, forming strong siloxane bonds that create highly crosslinked networks.
These networks are essential in producing sealants, adhesives, coatings, and elastomers that exhibit superior mechanical strength, elasticity, and long-term durability, even under extreme environmental conditions such as heat, cold, moisture, and UV exposure.
In the construction industry, it is widely used in silicone sealants and primers to ensure reliable adhesion to glass, concrete, metals, and ceramics, which is critical for waterproofing, structural joints, and exterior cladding applications.
Its inclusion in protective coatings imparts chemical resistance, UV stability, and weatherability, allowing buildings, bridges, and other infrastructure to maintain performance and appearance over long periods without degradation.
In automotive and aerospace applications, Methyltris(methylethylketoxime)silane is incorporated into silicone adhesives and elastomers to enhance flexibility, thermal stability, and resistance to vibration, oil, and fuel exposure, which is essential for gaskets, sealing components, and vibration-dampening materials.
The electronics sector benefits from its use in encapsulation, protective coatings, and conformal coatings, where it protects sensitive components from moisture, corrosion, and thermal stress, significantly increasing reliability and service life.
Beyond these industries, it is also used in specialty coatings for industrial machinery, pipelines, and chemical storage, where it contributes to abrasion resistance, chemical inertness, and mechanical durability.
Its ability to act as an adhesion promoter in primers enables difficult surfaces, such as treated plastics or metals with low surface energy, to form strong, long-lasting bonds with silicone materials.
Additionally, Methyltris(methylethylketoxime)silane is applied in elastomeric formulations to improve tear resistance, elongation, and dimensional stability, which is crucial for dynamic seals, molds, and other flexible components.
Safety Profile:
Methyltris(methylethylketoxime)silane poses several hazards that require careful handling due to its chemical reactivity and the potential toxicity of its decomposition products.
Methyltris(Methylethylketoxime)silane contains oxime functional groups, which can release methyl ethyl ketoxime (MEKO) vapors during curing or if the material is exposed to moisture, heat, or acidic conditions.
These vapors are irritating to the eyes, skin, and respiratory tract, and prolonged or repeated exposure may lead to sensitization, dermatitis, or allergic reactions, particularly in workers handling the compound frequently or without proper protective measures.
Inhalation of vapors or dust can cause coughing, shortness of breath, dizziness, headaches, or nausea, while direct skin contact may result in redness, itching, or chemical burns in severe cases.
Eye exposure can produce watering, stinging, and temporary visual disturbances, and accidental ingestion may be toxic, causing gastrointestinal distress and systemic effects.
The chemical is flammable and reactive, especially in contact with strong oxidizers, acids, or bases, and it may release hazardous gases under extreme conditions.
From an environmental perspective, improper disposal or accidental release can lead to contamination of water and soil, and the chemical may have harmful effects on aquatic organisms.
Therefore, industrial and laboratory use of Methyltris(methylethylketoxime)silane requires strict adherence to safety guidelines, including working in well-ventilated areas, using appropriate personal protective equipment (PPE) such as gloves, goggles, and respirators, and storing the chemical in airtight, moisture-free containers away from sources of heat, sparks, or incompatible substances.
Proper spill containment, neutralization, and waste management procedures are also essential to prevent exposure, environmental release, and chemical accidents.
