Phenyltriethoxysilane CAS 780-69-8

Product Name: Phenyltriethoxysilane
CAS: 780-69-8
MF: C12H20O3Si
MW: 240.37
EINECS: 212-305-8
Melting point: <-50°C
Boiling point: 112-113 °C
Density: 0.996 g/mL

Purity:≥99%

Colorless and transparent liquid

1. Phenyltriethoxysilane CAS 780-69-8 is used as a crosslinking agent for silicone resins and as a raw material for phenyl silicone fluids and phenyl silicone oils.
2. Phenyltriethoxysilane CAS 780-69-8 serves as a hydrophobic surface modifier for inorganic fillers such as wollastonite and aluminum hydroxide, improving their dispersion in polymers and reducing melt viscosity during high-temperature processing .
3. Phenyltriethoxysilane CAS 780-69-8 is employed as a high-temperature additive in hydrophobic agents and silane coupling agent blends, and is used in the preparation of phenyl-modified organic-inorganic hybrid microporous silica membranes for gas separation .

1. Store Phenyltriethoxysilane CAS 780-69-8 in a tightly closed container in a cool, well-ventilated area away from direct sunlight and heat sources .
2. Phenyltriethoxysilane CAS 780-69-8 is moisture-sensitive and should be protected from water and humid air to prevent hydrolysis .
3. Keep Phenyltriethoxysilane CAS 780-69-8 away from open flames, hot surfaces, sparks, and incompatible materials such as strong oxidizing agents and strong acids .

1. Phenyltriethoxysilane CAS 780-69-8 is classified as a flammable liquid and vapor (H226) with a flash point of 49°C .
2. Phenyltriethoxysilane CAS 780-69-8 may cause damage to organs (urinary bladder) through prolonged or repeated exposure (H373) .
3. Phenyltriethoxysilane CAS 780-69-8 has an oral LD50 of 2,830 µL/kg in rats and a dermal LD50 of 3,014 mg/kg in rabbits, indicating moderate acute toxicity .

1. Phenyltriethoxysilane CAS 780-69-8 is not safe for uncontrolled handling due to its flammability and organ toxicity potential .
2. Phenyltriethoxysilane CAS 780-69-8 is classified as a warning-level hazard with the signal word Warning under GHS for flammability and STOT RE 2 .
3. Phenyltriethoxysilane CAS 780-69-8 requires protective equipment including safety glasses, protective gloves, and appropriate clothing, and should be handled in a well-ventilated area or fume hood .

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