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229652

Sigma-Aldrich

Hafnium(IV) oxychloride hydrate

99.99% trace metals basis (purity excludes zirconium)

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About This Item

Linear Formula:
HfOCl2 · xH2O
CAS Number:
15461-28-6
Molecular Weight:
265.40 (anhydrous basis)
EC Number:
237-345-3
MDL number:
MFCD00150415
UNSPSC Code:
12352302
PubChem Substance ID:
24853294
NACRES:
NA.23
grade:
for analytical purposes
form:
crystalline

grade

for analytical purposes

Assay

99.99% trace metals basis (purity excludes zirconium)

form

crystalline

impurities

≤200.0 ppm Trace Metal Analysis

SMILES string

O.Cl[Hf](Cl)=O

InChI

1S/2ClH.Hf.H2O.O/h2*1H;;1H2;/q;;+2;;/p-2

InChI key

ONMNZQKEFYFCCQ-UHFFFAOYSA-L

General description

Degree of hydration 6-8

Application

Starting material for HfGeO4 and HfGeO4:Ti, both used in x-ray phosphors.

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H314

Hazard Classifications

Skin Corr. 1B

Storage Class Code

8B - Non-combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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.

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

229652-VAR:
229652-5G:
229652-500MG:
229652-1G:4548173983660
229652-BULK:

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Certificates of Analysis (COA)

Lot/Batch Number
MKCN9852
MKBL0147V
MKBK4713V
MKBJ4511V
MKAA3127V

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Zirconium(IV) chloride ≥99.5% trace metals basis

Sigma-Aldrich

221880

Zirconium(IV) chloride

P. M. Lambert
Inorganic chemistry, 37(6), 1352-1357 (2001-10-24)
The gel chemistry of germanium is explored through the formation and composition of a hydrous metal oxide precursor gel used in the preparation of the HfGeO(4) and HfGeO(4):Ti X-ray phosphors. The enhanced solubility of hexagonal GeO(2) in dilute ammoniacal solutions

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