Skip to Content
Merck
All Photos(1)

Documents

Safety Information

679240

Sigma-Aldrich

Tetrapropyl orthosilicate

≥98%, deposition grade

Synonym(s):

Tetrapropoxysilane

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
(CH3CH2CH2O)4Si
CAS Number:
Molecular Weight:
264.43
Beilstein:
1706115
EC Number:
MDL number:
UNSPSC Code:
12352103
PubChem Substance ID:
NACRES:
NA.23

grade

deposition grade

vapor density

>1 (vs air)

Assay

≥98%

form

liquid

refractive index

n20/D 1.4 (lit.)

bp

94 °C/5 mmHg (lit.)

density

0.916 g/mL at 25 °C (lit.)

SMILES string

CCCO[Si](OCCC)(OCCC)OCCC

InChI

1S/C12H28O4Si/c1-5-9-13-17(14-10-6-2,15-11-7-3)16-12-8-4/h5-12H2,1-4H3

InChI key

ZQZCOBSUOFHDEE-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

203.0 °F - closed cup

Flash Point(C)

95 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 4: Flammable liquids
Type 3 petroleums
Hazardous rank III
Water insoluble liquid

JAN Code

679240-BULK:
679240-50G:
679240-VAR:


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Articles

Deposition Grade Silanes, fully characterized by chemical analysis and nuclear magnetic resonance (NMR) with greater than 98% purity, for Sol-Gel Processes.

Reactive silicone chemistry: Focus on pure silicon production, polymerizations, and controlled stereochemistry reactions.

Mesoporous materials, such as aerogels, offer advantages for practical hydrogen storage. They have large surface areas, open porosity, small pore sizes, and the ability to coat the surface with one or more compounds.

Silica's versatility spans various industries, including biomedical applications.

See All

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service