Silicones & Silicates
REACH
Aminopropyltrimethoxysilane
CAS Number
13822-56-5
EC Number
237-511-5
Abbreviation
APTMS
What is Aminopropyltrimethoxysilane?
Aminopropyltrimethoxysilane (CAS 13822-56-5), abbreviated APTMS, is an aminosilane coupling agent that chemically bridges inorganic substrates and organic polymer matrices.
Where is Aminopropyltrimethoxysilane used?
- Adhesives, sealants and coatings: primer or adhesion promoter on glass, metal and mineral substrates, improving bond strength and moisture resistance
- Epoxy and polyurethane systems: crosslinker or curing co-agent for composites and encapsulation
- Electronics: surface treatment of fillers and substrates in printed circuit boards and semiconductor encapsulants
- Personal care and automotive: functionalising silica and mineral particles for dispersion and compatibility
- It bonds to mineral surfaces and resin systems, improving adhesion, durability and interfacial compatibility.
Commercial specifications
- 97–99% purity
- Electronic grades for semiconductor and precision coating applications
- Packaging from small drums to IBC containers
Other Names (Synonyms)
3-Aminopropyltrimethoxysilane|3-(Trimethoxysilyl)propylamine|3-(Trimethoxysilyl)-1-propanamine|1-Propanamine, 3-(trimethoxysilyl)-|Silane SC 3900|Propylamine, 3-(trimethoxysilyl)-|KBE 903|GAMMA-AMINOPROPYLTRIMETHOXYSILANE|APTMS
What are the physical properties of Aminopropyltrimethoxysilane?
Melting Point <-60°C
Boiling Point 80 °C @ Press: 8 Torr
Density 1.027 g/cm³
Flash Point 182 °F
Appearance Colorless transparent liquid
Color Clear colorless
Odor Ammoniacal odor
Form Liquid
Water Solubility reacts
Vapor Pressure 0-12790Pa at 20-25℃
Refractive Index n 20/D 1.424(lit.)
pH >9 (20g/l, H2O, 20℃)
Log P -4--0.82 at 20℃
How is Aminopropyltrimethoxysilane classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS07· Irritant
Hazard Statements
H314 Causes severe skin burns and eye damage
H315 Causes skin irritation
H318 Causes serious eye damage
H319 Causes serious eye irritation
Precautionary Statements
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P316 Get emergency medical help immediately.
Which trade and regulatory codes apply to Aminopropyltrimethoxysilane?
HS Code 29310095
UN Number 2735
Storage Class 10 - Combustible liquids
WGK (Germany) 3