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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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Nicolas Wartenberg et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 19(10), 3477-3482 (2013-01-29)
The bis-tetrazolate-pyridine ligand H(2)pytz sensitises efficiently the visible and/or near-IR luminescence emission of ten lanthanide cations (Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, Yb). The Ln(III) complexes present sizeable quantum yields in both domains with a single excitation
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
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
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
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
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