Tetrapropoxysilane Cas 682-01-9

Chemical Name: Tetrapropoxysilane
Synonyms: Tetrapropyl orthosilicate; Orthosilicic acid tetrapropyl ester; silicon tetra-n-propoxide
CAS No.: 682-01-9
Molecular Fomula: C12H28O4Si
Molecular weight: 264.43
Appearance: colorless liquid
Assay:≥98.0%

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Tetrapropoxysilane (CAS 682-01-9) Technical Guide

1. Product Specifications & Comparative Analysis

Parameter Specification Competitor A Competitor B
CAS Number 682-01-9 682-01-9 682-01-9
Purity ≥97.0% 95% 98%
Appearance Colorless liquid Colorless liquid Colorless liquid
Density (20°C) 0.9160±0.002 g/ml 0.916 g/ml 0.9±0.1 g/cm³
Flash Point 95°C 203°F (95°C) 95.0±0.0°C

2. Key Applications & Industrial Uses

Core Functionalities:

  • Coupling Agent: Enhances adhesion between organic polymers and inorganic substrates in coatings.
  • Cross-Linking Agent: Improves thermal stability and mechanical strength in RTV-2 silicone rubbers.
  • Surface Modifier: Treats glass fibers and minerals to optimize composite material performance.

Industry-Specific Implementations:

  • Adhesives: Critical component in two-part room-temperature vulcanizing (RTV-2) systems
  • Coatings: Provides water resistance in industrial paint formulations
  • Electronics: Used as dielectric material in encapsulation compounds

3. Operational Guidelines & Formulation Examples

RTV-2 Silicone Rubber Formulation

Component A:

  • 107 Silicone Rubber (20,000-80,000 cP): 500 parts
  • Silicone Oil (100-1,000 cP): 50-100 parts
  • Calcium Carbonate: 500 parts

Mixing Protocol: Homogenize in planetary mixer at ambient temperature

Component B:

  • Carbon Black Dispersion: 500 parts
  • Tetrapropoxysilane: 200 parts
  • Silane Coupling Agent (KH-550): 100 parts
  • Fumed Silica: 10-20 parts

Curing Process: Vacuum mixing with incremental addition of components

4. Client Success Stories

Case Study 1: Advanced Adhesive Solutions

Client: Leading Asian Silicone Manufacturer

  • Challenge: Required <5-minute work time with >90% bond strength retention
  • Solution: Optimized tetrapropoxysilane ratio (12:1 A:B component)
  • Outcome: Achieved 93% strength retention with 4.5-minute processing window

Case Study 2: High-Temperature Coatings

Client: European Industrial Coatings Supplier

  • Requirement: Develop 300°C-stable anti-corrosive coating
  • Implementation: 3% tetrapropoxysilane in epoxy-siloxane hybrid system
  • Performance: Passed 1,000-hour salt spray test (ASTM B117)

5. Contact for Technical Consultation

For formulation support or bulk purchasing inquiries:

Technical Support info@vivalr.com
Sales Department (86) 15866781826

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