3-triethoxysilylpropan-1-amine

C9H23NO3Si

CAS919-30-2
GHS07 Gefahrensymbol: Gesundheitsschädlich/Reizend – Ausrufezeichen
GHS05 Gefahrensymbol: Ätzend – Ätzwirkung
Danger

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Identification

CAS Number
919-30-2
EC Number
213-048-4
UN Number
3267
Index Number
612-108-00-0
PubChem CID
13521

Physical-chemical properties

Molecular Formula
C9H23NO3Si
Molar Mass
221.37 g/mol
IUPAC Name
3-triethoxysilylpropan-1-amine

Chemical Identifiers

InChI
InChI=1S/C9H23NO3Si/c1-4-11-14(12-5-2,13-6-3)9-7-8-10/h4-10H2,1-3H3
InChI Key
WYTZZXDRDKSJID-UHFFFAOYSA-N

Overview

3-triethoxysilylpropan-1-amine (CAS 919-30-2) is an aminosilane coupling agent with reactive amino and silane functional groups for surface modification applications. This organosilicon compound serves as a versatile bifunctional molecule in industrial chemistry, combining the reactivity of primary amine groups with the adhesion-promoting properties of triethoxysilane moieties. With the molecular formula C9H23NO3Si and a molecular weight of 221.37 g/mol, this aminosilane demonstrates excellent capability for creating strong bonds between organic and inorganic materials. The compound's unique structure enables it to form covalent bonds with both siliceous surfaces through its silane end and organic polymers through its amino functionality. The substance requires careful handling due to its corrosive properties, classified under Skin Corr. 1B with acute toxicity Category 4. The presence of GHS05 and GHS07 pictogrammes indicates potential for serious eye damage and skin corrosion, necessitating appropriate personal protective equipment during use. Its ADR Class 8 classification reflects its corrosive nature during transportation. Primary applications include glass fiber treatment for composite reinforcement, where it enhances fiber-matrix adhesion in fiberglass applications. The compound also serves as a primer for improving paint and coating adhesion to glass and metal substrates, and functions as a crosslinking agent in sealant and adhesive formulations. Unlike basic amine compounds such as phenylmethanamine, this silane coupling agent provides dual functionality essential for interfacial chemistry applications. OYSI maintains reliable supply chains for 3-triethoxysilylpropan-1-amine across European markets, supporting diverse industrial applications requiring high-performance coupling agents.

Safety & Classification

Danger
Classification:

Acute Tox. 4 *; Skin Corr. 1B

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H302

Harmful if swallowed.

H314

Causes severe skin burns and eye damage.

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Skin Contact

Harmful

Measures if substance contacts the skin

First Aid Actions

  • +P302IF ON SKIN:
  • +P352Wash with plenty of water.
  • +P361Take off immediately all contaminated clothing.
  • +P313Get medical advice/attention.

Related hazard statements:

Eye Contact

Harmful

Measures if substance gets into the eyes

First Aid Actions

  • +P305IF IN EYES:
  • +P351Rinse cautiously with water for several minutes.
  • +P338Remove contact lenses, if present and easy to do. Continue rinsing.
  • +P313Get medical advice/attention.

Related hazard statements:

Ingestion

Harmful

Measures if substance is accidentally swallowed

First Aid Actions

  • +P301IF SWALLOWED:
  • +P330Rinse mouth.
  • +P331Do NOT induce vomiting.
  • +P310Immediately call a POISON CENTER/doctor.

Related hazard statements:

General Measures

Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)

First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.

Transport (ADR)

UN Number3267
ADR Class8
Packing GroupII
Tunnel CodeE
Proper Shipping Name3-(Triethoxysilyl)propan-1-amin
Marine PollutantNo

Frequently Asked Questions

What is 3-triethoxysilylpropan-1-amine?

3-triethoxysilylpropan-1-amine is an organosilane coupling agent with the molecular formula C9H23NO3Si and CAS number 919-30-2. This chemical compound features both silane and amine functional groups, making it valuable for surface modification and adhesion promotion applications. With a molecular weight of 221.37 g/mol, it serves as an important intermediate in various industrial processes requiring chemical bonding between organic and inorganic materials.

What are the physicochemical properties of 3-triethoxysilylpropan-1-amine?

3-triethoxysilylpropan-1-amine is typically a clear to pale yellow liquid at room temperature with a characteristic amine-like odor. The compound is sensitive to moisture and will hydrolyze in the presence of water, forming silanol groups. It exhibits good solubility in organic solvents such as alcohols, ethers, and aromatic hydrocarbons. The presence of ethoxy groups makes it reactive toward hydroxyl-containing surfaces, while the amine group provides additional reactivity for organic coupling reactions.

What is 3-triethoxysilylpropan-1-amine used for?

3-triethoxysilylpropan-1-amine is primarily used as a coupling agent and surface modifier in various industrial applications. It enhances adhesion between organic polymers and inorganic substrates like glass, metals, and minerals. Common applications include composite materials manufacturing, coatings formulation, adhesives and sealants production, and surface treatment of fillers. It also serves as a crosslinking agent in polymer chemistry and as an intermediate in the synthesis of specialized organosilicon compounds.

How to handle 3-triethoxysilylpropan-1-amine safely?

3-triethoxysilylpropan-1-amine must be handled with appropriate personal protective equipment due to its corrosive nature (Skin Corr. 1B) and acute toxicity (Acute Tox. 4). Wear chemical-resistant gloves, safety goggles, and protective clothing. Ensure adequate ventilation to avoid inhalation of vapors. Handle in a well-ventilated area or under a fume hood. Avoid direct skin and eye contact. Keep containers tightly closed when not in use and work with non-sparking tools to prevent static discharge.

How to store 3-triethoxysilylpropan-1-amine correctly?

3-triethoxysilylpropan-1-amine should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from moisture and heat sources. Keep containers upright and protected from direct sunlight. Store separately from strong acids, bases, and oxidizing agents to prevent incompatible reactions. Maintain storage temperature below 25°C when possible. Ensure storage areas are equipped with appropriate spill containment measures and emergency eyewash/shower facilities due to the corrosive classification of this material.

What to do in case of contact with 3-triethoxysilylpropan-1-amine?

Immediate action is required due to the corrosive nature of 3-triethoxysilylpropan-1-amine. For skin contact, immediately remove contaminated clothing and rinse affected area with plenty of water for at least 15 minutes. For eye contact, flush immediately with clean water for at least 15 minutes while holding eyelids open. If inhaled, move person to fresh air and keep at rest. In case of ingestion, do not induce vomiting and rinse mouth with water. Seek immediate medical attention for all exposure routes.

How to dispose of 3-triethoxysilylpropan-1-amine properly?

3-triethoxysilylpropan-1-amine must be disposed of in accordance with local, regional, and national regulations as hazardous waste. Contact authorized waste disposal companies for proper handling and treatment. Do not discharge into drains, water sources, or soil. Small quantities can be neutralized by qualified personnel before disposal, but this should only be done following proper procedures. Keep disposal records as required by regulations. Empty containers should also be treated as hazardous waste due to residual product contamination.

How to transport 3-triethoxysilylpropan-1-amine?

3-triethoxysilylpropan-1-amine is classified as ADR Class 8 (corrosive substances), Packing Group II, requiring specific transport regulations compliance. Use appropriate UN-specification packaging designed for corrosive liquids. Vehicles must display proper hazard placards and carry required documentation. Drivers need ADR training certification for dangerous goods transport. Packages must be properly labeled with GHS pictograms (GHS05, GHS07) and hazard information. Ensure packages are secured to prevent movement and potential leakage during transport.

Is 3-triethoxysilylpropan-1-amine subject to specific regulations?

3-triethoxysilylpropan-1-amine is subject to various European chemical regulations including REACH registration requirements and CLP classification obligations. It is classified under CLP as Acute Tox. 4 and Skin Corr. 1B with 'Danger' signal word. The substance is not currently listed as a Substance of Very High Concern (SVHC) under REACH. Users must comply with safety data sheet requirements, workplace exposure limits, and proper risk assessment procedures. Industrial users may need to register downstream use depending on quantities and applications.

Where to buy 3-triethoxysilylpropan-1-amine in Europe?

3-triethoxysilylpropan-1-amine is available through OYSI, a specialized European distributor of technical chemicals. OYSI provides this organosilane coupling agent to industrial customers across Europe with proper documentation including safety data sheets and certificates of analysis. As an established chemical distributor, OYSI ensures compliance with European regulations including REACH requirements. Contact OYSI directly for availability, technical specifications, packaging options, and delivery arrangements to your specific location within Europe.

Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.