Hafnium (IV) tert-butoxide

Synonym: Hafnium tetrakis(tert -butoxide), Hafnium(IV) tert -butoxide, Tetra-tert -butoxyhafnium, HfTB, Hf[OC(Me)3]4

CAS Number 2172-02-3 | MDL Number MFCD00070458 | EC Number 625-479-9

HfTB Chemical-Structure

Product code HF2023
CAS number 2172-02-3
Assay (purity) 99%
Metal purity 99.9%-Hf (excluding Zr)
Purity method by integration NMR
NMR conforms to structure
Molecular weight 470.94 g/mol
Form liquid
Appearance colorless to pale yellow liquid
Melting point 8°C (46°F)
Boiling point 90°C (194°F) @ 5 mmHg
Flash point 28°C (82°F) – closed cup
Sensitivity air, moisture
Molecular formula HfO4C16H36
Linear formula Hf[OC(CH3)3]4
Packaging glassware/metal containers/bubblers

Hafnium (IV) tert-butoxide is a chemical precursor that has been investigated for applicability to plasma enhanced atomic layer deposition. See link below

Ereztech manufactures and sells this product in small and bulk volumes. Glass ampules, bottles or metal ampules or bubblers are available for packaging. For additional analytical information or details about purchasing HF2023 contact us at sales@ereztech.com

Safety information

UN 1993
Hazardous class 3
Packing group III
Pictograms GHS07GHS02
Signal word WARNING
Hazard statements H226-H315-H319-H335
Precautionary statements P210-P231-P232-P233-P240-P241-P242-P243-P261-P264-P271-P280-P302+P352-P303 + P353 + P361-P304 + P340-P305 + P351 + P338-P332 + P313-P337 + P313-P362-P370 + P378
Transport description FLAMMABLE LIQUID, N.O.S. (Hafnium(IV) tert-butoxide)
In TSCA registry No (sold for research and development usage only)

First Aid Measures

General advice Consult a physician. Show this safety data sheet to the doctor in attendance. Move out of the dangerous area.
Eye contact Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician.
Skin contact Wash off with soap and plenty of water. Consult a physician.
Inhalation If breathed in, move person into the fresh air. If not breathing, give artificial respiration. Consult a physician.
If swallowed Do NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.

 

Certificates of Analysis (CoA)

If you don’t see the needed lot of Hafnium (IV) tert-butoxide below please contact customer support at sales@ereztech.com

Lot# 015/676 Lot# 015/772 Lot# 015/852/1

External identifiers for HfTB

Pubchem CID 9934444
IUPAC Name hafnium(4+); 2-methylpropan-2-olate
SMILES CC(C)(C)[O-].CC(C)(C)[O-].CC(C)(C)[O-].CC(C)(C)[O-].[Hf+4]
InchI Identifier InChI=1S/4C4H9O.Hf/c4*1-4(2,3)5;/h4*1-3H3;/q4*-1;+4
InchI Key WZVIPWQGBBCHJP-UHFFFAOYSA-N

Known applications and external links

With Hafnium (IV) tert-butoxide other customers often ask:

Ereztech synthesizes and sells additional HF-compounds.

To purchase HF2023 contact us at sales@ereztech.com