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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

Quality Level

100

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

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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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