Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

445541

Sigma-Aldrich

Hafnium(IV) tert-butoxide

99.99% trace metals basis (purity excludes ~2000 ppm zirconium.)

Synonym(s):

Hafnium tetrakis(tert -butoxide), Hafnium(IV) tert -butoxide, Tetra-tert -butoxyhafnium

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Linear Formula:
Hf[OC(CH3)3]4
CAS Number:
2172-02-3
Molecular Weight:
470.94
MDL number:
MFCD00070458
UNSPSC Code:
12352103
PubChem Substance ID:
24868190
NACRES:
NA.23

Quality Level

100

Assay

99.99% trace metals basis (purity excludes ~2000 ppm zirconium.)

form

liquid

reaction suitability

core: hafnium

refractive index

n20/D 1.424 (lit.)

bp

90 °C/5 mmHg (lit.)

density

1.166 g/mL at 25 °C (lit.)

SMILES string

CC(C)(C)O[Hf](OC(C)(C)C)(OC(C)(C)C)OC(C)(C)C

InChI

1S/4C4H9O.Hf/c4*1-4(2,3)5;/h4*1-3H3;/q4*-1;+4

InChI key

WZVIPWQGBBCHJP-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

Atomic number of base material: 72 Hafnium

accessory

Product No.
Description
Pricing

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Warning

Hazard Statements

H226,H315,H319,H335

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

82.4 °F - closed cup

Flash Point(C)

28 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
SHBR1951
SHBM6180
SHBJ9109
SHBH7654
SHBF7813V

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

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

Visit the Document Library

Sean W Depner et al.
ACS nano, 8(5), 4678-4688 (2014-04-23)
We demonstrate that the degree of branching of the alkyl (R) chain in a Hf(OR)4 precursor allows for control over the length of HfO2 nanocrystals grown by homocondensation of the metal alkoxide with a metal halide. An extended nonhydrolytic sol-gel

Articles

High Purity Metalorganic Precursors for CPV Device Fabrication

Thin film photovoltaic devices have become increasingly important in efficiently harnessing solar energy to meet consumer demand.

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