MilliporeSigma
All Photos(2)

Documents

203394

Sigma-Aldrich

Hafnium(IV) oxide

≥99.95%

Sign Into View Organizational & Contract Pricing

Empirical Formula (Hill Notation):
HfO2
CAS Number:
Molecular Weight:
210.49
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Assay

≥99.95%

form

powder

density

9.68 g/mL at 25 °C (lit.)

SMILES string

O=[Hf]=O

InChI

1S/Hf.2O

InChI key

CJNBYAVZURUTKZ-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
202118590592455202
Hafnium(IV) oxide ≥99.95%

Sigma-Aldrich

203394

Hafnium(IV) oxide

Hafnium(IV) oxide powder, 98%

Sigma-Aldrich

202118

Hafnium(IV) oxide

Hafnium(IV) chloride purified by sublimation, 99.9% trace metals basis

Sigma-Aldrich

590592

Hafnium(IV) chloride

form

powder

form

powder

form

powder

form

liquid

density

9.68 g/mL at 25 °C (lit.)

density

9.68 g/mL at 25 °C (lit.)

density

-

density

1.249 g/mL at 25 °C (lit.)

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Articles

In recent years silicon carbide, SiC, has re-emerged as a vital technological material that is crucial in many materials and engineering applications.

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