Silicones & Silicates
REACH
Phenyltris(butanoxime)silane
CAS Number
34036-80-1
EC Number
433-360-6
What is Phenyltris(butanoxime)silane?
Phenyltris(butanoxime)silane (CAS 34036-80-1), also known as Phenyltris(methylethylketoximio)silane, is an oxime-functional silane crosslinker for room-temperature vulcanizing (RTV) silicone systems.
Where is Phenyltris(butanoxime)silane used?
- One-component RTV silicone sealants: controls cure speed and network density
- Construction, glazing and automotive sealing
- Silicone adhesives for electronics and industrial assembly
- Silicone coatings: tunes film hardness and surface properties
- Silicone elastomer compounding: reactive modifier influencing rheology before final cure
- It releases butanone oxime during cure, enabling moisture-triggered crosslinking without elevated temperatures.
Good to know: Buyers should verify oxime content and moisture sensitivity controls when evaluating supply chain suitability.
Commercial specifications
- Purity specifications commonly confirmed by GC analysis
- Liquid, typically in drums or IBC containers
Other Names (Synonyms)
RefChem:369945|Phenyltris(methylethylketoximio)silane|C18H29N3O3Si|N,N',N''-[(Phenylsilanetriyl)tris(oxy)]tri(butan-2-imine)|N-[bis[(1-methylpropylideneamino)oxy]-phenyl-silyl]oxybutan-2-imine|2-Butanone, 2,2′,2′′-[O,O′,O′′-(phenylsilylidyne)trioxime]|2-Butanone, O,O′,O′′-(phenylsilylidyne)trioxime
What are the physical properties of Phenyltris(butanoxime)silane?
Melting Point <0°C
Boiling Point 60-65 °C @ Press: 3 Torr
Density 0.995 g/cm³
Flash Point 90°C
Appearance Clear to straw liquid with mild odor
Water Solubility 36.63g/L
Vapor Pressure 0.003Pa at 25℃
How is Phenyltris(butanoxime)silane classified and handled safely? Learn More
Warning
GHS07· Irritant GHS08· Health Hazard
Hazard Statements
H317 May cause an allergic skin reaction
H373 May causes damage to organs through prolonged or repeated exposure
H412 Harmful to aquatic life with long lasting effects
Precautionary Statements
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P272 Contaminated work clothing should not be allowed out of the workplace.
P273 Avoid release to the environment.