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131903

Sigma-Aldrich

原硅酸四乙酯

reagent grade, 98%

别名:

TEOS, 四乙氧基硅烷, 四乙氧基硅烷(IV), 四氧化硅, 硅酸四乙酯, 原硅酸四乙酯

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About This Item

线性分子式:
Si(OC2H5)4
CAS号:
78-10-4
分子量:
208.33
Beilstein:
1422225
EC號碼:
201-083-8
MDL號碼:
MFCD00009062
分類程式碼代碼:
12352103
PubChem物質ID:
24848042
NACRES:
NA.23

等級

reagent grade

品質等級

200

蒸汽密度

7.2 (vs air)

蒸汽壓力

<1 mmHg ( 20 °C)

化驗

98%

形狀

liquid

折射率

n20/D 1.382 (lit.)

bp

168 °C (lit.)

密度

0.933 g/mL at 20 °C (lit.)

SMILES 字串

CCO[Si](OCC)(OCC)OCC

InChI

1S/C8H20O4Si/c1-5-9-13(10-6-2,11-7-3)12-8-4/h5-8H2,1-4H3

InChI 密鑰

BOTDANWDWHJENH-UHFFFAOYSA-N

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一般說明

正硅酸四乙酯（TEOS）是一种无色液体醇盐，常用作二氧化硅（SiO2）薄膜沉积的前体。 它也用于水凝胶、纳米粒子基药物递送系统和聚合物的化学交联。

應用

将与十二胺相互作用形成 H+-麦烃硅钠石的插层化合物，并用于混合金属生物活性玻璃的研究。
常用作制备干凝胶的前体
正硅酸四乙酯可用于:
  • 作为一种反溶剂，用于制备具有增强的功率转换效率和再现性的倒置平面太阳能电池的高效钙钛矿层TEOS有助于获取优质钙钛矿薄膜，降低缺陷密度，从而减缓载流子复合。
  • 作为溶胶-凝胶前驱体，合成用于太阳能电池的SiO2-TiO2抗反射自清洁涂层。.
  • 制备用于质子交换膜燃料电池应用的纳米二氧化硅功能化交联杂化膜。这些膜具有更好的质子传导性和热稳定性。
  • 制备聚偏二氟乙烯/TEOS基体隔膜，从而提高锂离子电池的性能。隔膜表现出优异的电解质保持能力和润湿性。

特點和優勢

  • 在基质上具有优异的粘附性
  • 均匀的薄膜沉积
  • 交联剂将聚合物链引入水凝胶

象形圖

FlameExclamation mark
GHS02,GHS07

訊號詞

Warning

危險分類

Acute Tox. 4 Inhalation - Eye Irrit. 2 - Flam. Liq. 3 - STOT SE 3

標靶器官

Respiratory system

儲存類別代碼

3 - Flammable liquids

水污染物質分類（WGK）

WGK 1

閃點（°F）

113.0 °F - closed cup

閃點（°C）

45 °C - closed cup

個人防護裝備

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
WXBB7845V
STBK7206
MKCP7644
MKCP3808
MKCP2926

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