Silane,trimethoxypropyl- (1067-25-0)

The IUPAC name of n-Propyltrimethoxysilane is trimethoxy(propyl)silane. With the CAS registry number 1067-25-0, it is also named as Silane, trimethoxypropyl-. The product's categories are Alkyl; Organics; Functional Materials; Si (Classes of Silicon Compounds); Silane Coupling Agents; Silane Coupling Agents (Intermediates); Si-O Compounds; Trialkoxysilanes; Alkoxy Silanes; Crosslinkers; Crosslinking Agents, and the other registry number is 77030-43-4. Besides, it is colorless or yellowish clear liquid, which should be stored in dry inert gas in closed, cool and dry place. This chemical is stable, but reacts with moisture. Furthermore, it is incompatible with strong oxidizing agents, acids, alcohols, bases, water. In addition, its molecular formula is C₆H₁₆O₃Si and molecular weight is 164.28. 

The other characteristics of this product can be summarized as: (1)EINECS: 213-926-7; (2)ACD/LogP: 1.20; (3)# of Rule of 5 Violations: 0; (4)ACD/LogD (pH 5.5): 1.2; (5)ACD/LogD (pH 7.4): 1.2; (6)ACD/BCF (pH 5.5): 4.8; (7)ACD/BCF (pH 7.4): 4.8; (8)ACD/KOC (pH 5.5): 106.98; (9)ACD/KOC (pH 7.4): 106.98; (10)H bond acceptors: 3; (11)H bond donors: 0; (12)Freely Rotating Bonds: 5; (13)Index of Refraction: 1.395; (14)Molar Refractivity: 43.79 cm³; (15)Molar Volume: 182.3 cm³; (16)Surface Tension: 20.6 dyne/cm; (17)Density: 0.9 g/cm³; (18)Flash Point: 40.6 °C; (19)Enthalpy of Vaporization: 36.35 kJ/mol; (20)Boiling Point: 142 °C at 760 mmHg; (21)Vapour Pressure: 7.14 mmHg at 25 °C.

Uses of n-Propyltrimethoxysilane: this chemical is an important material in sol-gel production. It may provide a hydrophobic surface treatment for inorganic powders or filler materials. And it is one of the catalyst components for polyolefin production with Ziegler-Natta catalysts. Additionally, it can react with Naphthalene-2,3-diol to get C₂₃H₁₉O₄Si(1-)*K(1+).



This reaction needs KOEt and Ethanol by heating. The yield is 94 %.

When you are using this chemical, please be cautious about it as the following: n-Propyltrimethoxysilane is flammable and irritating to eyes, respiratory system and skin. You should wear suitable protective clothing when use it. Moreover, in case of contact with eyes, please rinse immediately with plenty of water and seek medical advice.

People can use the following data to convert to the molecule structure.
(1)SMILES:O(C)[Si](OC)(OC)CCC
(2)InChI:InChI=1/C6H16O3Si/c1-5-6-10(7-2,8-3)9-4/h5-6H2,1-4H3
(3)InChIKey:HQYALQRYBUJWDH-UHFFFAOYAI
(4)Std. InChI:InChI=1S/C6H16O3Si/c1-5-6-10(7-2,8-3)9-4/h5-6H2,1-4H3
(5)Std. InChIKey:HQYALQRYBUJWDH-UHFFFAOYSA-N