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Merck
CN

693693

Holmium

foil, thickness 1 mm, 99.9% trace rare earth metals basis

Synonym(s):

Holmium-165

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About This Item

Empirical Formula (Hill Notation):
Ho
CAS Number:
7440-60-0
Molecular Weight:
164.93
NACRES:
NA.23
PubChem Substance ID:
329761613
UNSPSC Code:
12161600
EC Number:
231-169-0
MDL number:
MFCD00011049

Key Documents

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InChI key

KJZYNXUDTRRSPN-UHFFFAOYSA-N

InChI

1S/Ho

SMILES string

[Ho]

assay

99.9% trace rare earth metals basis

form

foil

reaction suitability

reagent type: catalyst
core: holmium

thickness

1 mm

density

8.8 g/mL at 25 °C (lit.)

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Application

Used in Physical Vapor Deposition (PVD) processes, including thermal and electron-beam (e-beam) evaporation, for the preparation of thin films.

Preparation Note

1 ea = 25 x 25 mm

Storage Class

13 - Non Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
MKCQ3436
MKCK3574
02811MH

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Peter R Seevinck et al.
International journal of radiation oncology, biology, physics, 83(3), e437-e444 (2012-05-29)
To investigate the potential of magnetic resonance imaging (MRI) for accurate assessment of the three-dimensional (166)Ho activity distribution to estimate radiation-absorbed dose distributions in (166)Ho-loaded poly (L-lactic acid) microsphere ((166)Ho-PLLA-MS) liver radioembolization. MRI, computed tomography (CT), and single photon emission
Y Nedjadi et al.
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine, 70(9), 1990-1996 (2012-03-17)
The work presented here is a new and precise measurement of the half-life of (166m)Ho by determining the activity concentration, using an ionisation chamber calibrated for this nuclide, and measuring the number of (166m)Ho atoms using multi-collector inductively coupled plasma
Maarten L J Smits et al.
The Lancet. Oncology, 13(10), 1025-1034 (2012-08-28)
The efficacy of radioembolisation for the treatment of liver tumours depends on the selective distribution of radioactive microspheres to tumorous tissue. The distribution of holmium-166 ((166)Ho) poly(L-lactic acid) microspheres can be visualised in vivo by both single-photon-emission CT (SPECT) and
Gerrit H van de Maat et al.
European radiology, 23(3), 827-835 (2012-09-28)
To demonstrate the feasibility of MRI-based assessment of the intrahepatic Ho-PLLA-MS biodistribution after radioembolisation in order to estimate the absorbed radiation dose. Fifteen patients were treated with holmium-166 ((166)Ho) poly(L-lactic acid)-loaded microspheres (Ho-PLLA-MS, mean 484 mg; range 408-593 mg) in
Alexander Hemming et al.
Optics express, 21(4), 4560-4566 (2013-03-14)
We report the highest power operation of a resonantly cladding-pumped, holmium-doped silica fibre laser. The cladding pumped all-glass fibre utilises a fluorine doped glass layer to provide low loss cladding guidance of the 1.95 µm pump radiation. The operation of
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