Description

Methyltri-n-Propoxysilane is a versatile organosilicon compound, specifically a trialkoxysilane, valued for its role as a key coupling agent and precursor in advanced material synthesis. Its primary commercial significance lies in its ability to modify surfaces and cross-link polymers, enhancing adhesion, hydrophobicity, and mechanical properties. This product is essential for manufacturers in the coatings, sealants, adhesives, and specialty chemical industries seeking to improve product performance.

Application

• Cross-linking Agent: Used in silicone resin formulations to promote curing and enhance thermal stability and mechanical strength.
• Surface Modification: Acts as an adhesion promoter for coatings and primers on substrates like glass, metals, and minerals.
• Hydrophobic Agent: Imparts water-repellent characteristics to construction materials, textiles, and stone.
• Intermediate for Silicone Synthesis: Serves as a crucial building block in the production of modified silicones and silane-functional polymers.
• Filler Treatment: Used to pretreat inorganic fillers (e.g., silica, clay) to improve dispersion and compatibility in polymer composites.
• Electronic Encapsulants: Employed in formulations for protecting electronic components due to its moisture resistance.

Basic Information

Product Name	Methyltri-n-Propoxysilane
CAS No.	5581-66-8
Molecular Formula	C10H24O3Si
Molecular Weight	220.39 g/mol
Synonyms	Methyltripropoxysilane; Tripropoxymethylsilane; Methyltris(propoxy)silane; Methylsilane, tripropoxy-; n-Propyl orthosilicate, methyl-; Silane, methyltripropoxy-; Methyl tri-n-propyl orthosilicate; MPTPS
EINECS	226-980-5

Quality Control

Our Methyltri-n-Propoxysilane is produced under a stringent quality management system. Every batch undergoes comprehensive analytical testing, including gas chromatography (GC) for purity and identity verification, to ensure it meets precise specifications. Certificates of Analysis (COA) detailing all test results are provided and available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C/59-77°F). This product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent degradation from atmospheric moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Refractive Index (n20/D)	1.400 - 1.410
Density (20°C)	0.92 - 0.96 g/cm³

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.