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235695

八甲基环四硅氧烷

Name: 八甲基环四硅氧烷
Brand: ALDRICH

98%

别名:

2,2,4,4,6,6,8,8-Octamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane, octamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane

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关于此项目

线性分子式:

[-Si(CH₃)₂O-]₄

化学文摘社编号:

556-67-2

分子量:

296.62

UNSPSC Code:

12352103

NACRES:

NA.23

PubChem Substance ID:

24853994

EC Number:

209-136-7

Beilstein/REAXYS Number:

1787074

MDL number:

MFCD00003269

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属性

vapor density

1 (vs air)

Quality Level

200

assay

98%

form

liquid

refractive index

n20/D 1.396 (lit.)

bp

175-176 °C (lit.)

mp

17-18 °C (lit.)

density

0.956 g/mL at 25 °C (lit.)

SMILES string

C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1

InChI

1S/C8H24O4Si4/c1-13(2)9-14(3,4)11-16(7,8)12-15(5,6)10-13/h1-8H3

InChI key

HMMGMWAXVFQUOA-UHFFFAOYSA-N

说明

General description

八甲基环四硅氧烷（D4）是一种分子量相对较低的挥发性甲基硅氧烷（VMS）。该硅酮流体具有环状排列的硅-氧键，并且其中甲基连接至硅原子上。D4可用于制造用于医疗设备和个人护理产品的有机硅基聚合物。

Application

以稀土固体超强酸为催化剂，D4可通过开环聚合，用于乙烯基包覆聚二甲基硅氧烷（PDMS）的合成。它也可以用作核磁共振低温法（NMRC）的探测液，以分析含油致密砂岩的孔径分布（PSD）。D4的化学气相沉积（CVD）可用于制备基于硅氧烷的薄膜。

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pictograms

GHS02,GHS08,GHS09

存储类别

3 - Flammable liquids

flash_point_f

123.8 °F - closed cup

flash_point_c

51 °C - closed cup

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

signalword

Danger

hcodes

H226,H361f,H410,EUH441

pcodes

P201 - P202 - P210 - P273 - P391 - P501

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Flam. Liq. 3 - PBT - Repr. 2 - vPvB

法规信息

危险化学品

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全球贸易项目编号

货号	GTIN
235695-100G	04061837485220
235695-25G	04061838785169