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457957

Sigma-Aldrich

Holmium

chips, 99.9% trace 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
EC Number:
231-169-0
MDL number:
MFCD00011049
UNSPSC Code:
12161600
PubChem Substance ID:
24869411
NACRES:
NA.23

Assay

99.9% trace metals basis

form

chips

reaction suitability

reagent type: catalyst
core: holmium

density

8.8 g/mL at 25 °C (lit.)

SMILES string

[Ho]

InChI

1S/Ho

InChI key

KJZYNXUDTRRSPN-UHFFFAOYSA-N

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Storage Class Code

13 - Non Combustible Solids

WGK

WGK 3

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’.

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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
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
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
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
Martin Schellhorn et al.
Optics letters, 38(4), 504-506 (2013-03-05)
We report the first observation to our knowledge of room-temperature continuous-wave laser operation on the (5)I(7)→(5)I(8) transition of Ho(3+) ions in a KY(3)F(10) single crystal. Using a Tm-doped silica fiber laser operating at 1938 nm as a pump source, a
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