- MF: C21H46O3Si
- Purity: 98%
- Appearance: Colorless Liquid
- Molecular weight: 374.67400
- PSA: 27.69000
- LogP: 7.12600
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Description:
Octadecyltrimethoxysilane is an organosilicon compound, commonly called OTMS. This colourless liquid is used for preparing hydrophobic coatings and self-assembled monolayers. It is sensitive toward water, irreversibly degrading to a siloxane polymer. It places a C18H39SiO3″cap” on oxide surface. The formation of OTMS monolayers is used for converting hydrophilic surfaces to hydrophobic surfaces, e.g. for use in certain areas of nanotechnology and analytical chemistry.
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Properties:
Density: 0.883
Melting point: 13-17degree
Boiling point: 170degree(0.1mmHg)
Flash point: 139degree
Refractive Index: 1.438-1.44
Stability: Stable, Incompatible with strong oxidizing agents. Moisture sensitive.
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Safety Info:
Safety Statements: S26-S36
HS Code: 2931900090
WGK Germany:1
Risk Statements: R36/37/38
Hazard Codes: Xi
化合物简介
基本信息
- 中文名称：
- 十八烷基三甲氧基硅烷
- 中文别名：
- 三甲氧基(十八烷基)硅烷;
三甲氧基十八烷基硅烷;
十八烷基三甲基硅烷;
硬脂基三甲氧基硅烷;
- 英文名称：
- Octadecyltrimethoxysilane
- 英文别名：
- n-Octodecyltrimethoxysilane;
TriMethoxy;
OctadecyltriMethoxys;
OctadecyltriMethoxysilane;
Stearyltrimethoxysilane;
- CAS号：
- 3069-42-9
- 分子式：
- C21H46O3Si
- 分子量：
- 374.67400
- 精确质量：
- 374.32200
- PSA：
- 27.69000
- LogP：
- 7.12600
物化性质
- 外观与性状：
- 淡黄色液体
- 密度：
- 0.883 g/mL at 25 °C(lit.)
- 熔点：
- 16-17 °C(lit.)
- 沸点：
- 170 °C (0.1 mmHg)
- 闪点：
- 284 °F
- 折射率：
- n20/D 1.439(lit.)
- 稳定性：
- Stable. Incompatible with strong oxidizing agents. Moisture sensitive.
安全信息
- 海关编码：2931900090
- WGK Germany：1
- 危险类别码：R36/37/38
- 安全说明：S26-S36
- 危险品标志：Xi
