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203033

Sigma-Aldrich

Cesium iodide

99.999% trace metals basis

Synonym(s):

Caesium iodide, Caesium monoiodide

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About This Item

Empirical Formula (Hill Notation):
CsI
CAS Number:
7789-17-5
Molecular Weight:
259.81
EC Number:
232-145-2
MDL number:
MFCD00010962
UNSPSC Code:
12352302
eCl@ss:
38100503
PubChem Substance ID:
24852141
NACRES:
NA.23

Quality Level

100

Assay

99.999% trace metals basis

form

solid

impurities

≤15.0 ppm Trace Metal Analysis

mp

626 °C (lit.)

density

4.51 g/mL at 25 °C (lit.)

SMILES string

[I-].[Cs+]

InChI

1S/Cs.HI/h;1H/q+1;/p-1

InChI key

XQPRBTXUXXVTKB-UHFFFAOYSA-M

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Application

Cesium iodide can be used as precursor to synthesize lead-free perovskite material, Cs2NaBiI6 (CNBI). The CNBI is highly stable and finds application in the field of solar cells, LEDs, and lasers.

It can be used to prepare brightest red emitting Cs2HfI6 scintillator which is applicable in high resolution gamma spectroscopy.

It can also be used tosynthesize Cesium based nanocrystals for the detection of ionizingradiations.

Features and Benefits

  • High quantum efficiency
  • High stability to ambient air and gas environment
Frequently used in devices such as phosphor screens for medical imaging, scintillators, calorimeters and a variety of particle detectors.

Pictograms

Health hazardEnvironment
GHS08,GHS09

Signal Word

Warning

Hazard Statements

H361fd,H400

Hazard Classifications

Aquatic Acute 1 - Repr. 2

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Fabian D J Brunner et al.
Optics express, 17(23), 20684-20693 (2009-12-10)
We present a versatile terahertz time-domain spectrometer which allows reflection measurements at normal incidence and double pass transmission measurements in a single experimental setup. Two different modes for transmission measurements are demonstrated for precise measurements of transparent high or low
G Hajdok et al.
Medical physics, 35(7), 3180-3193 (2008-08-14)
The practice of diagnostic x-ray imaging has been transformed with the emergence of digital detector technology. Although digital systems offer many practical advantages over conventional film-based systems, their spatial resolution performance can be a limitation. The authors present a Monte
Riddhiman Sarkar et al.
Journal of magnetic resonance (San Diego, Calif. : 1997), 212(2), 460-463 (2011-09-13)
The accurate temperature measurement of solid samples under magic-angle spinning (MAS) is difficult in the cryogenic regime. It has been demonstrated by Thurber et al. (J. Magn. Reson., 196 (2009) 84-87) [10] that the temperature dependent spin-lattice relaxation time constant
N W Marshall
Physics in medicine and biology, 54(9), 2845-2861 (2009-04-23)
This paper presents detective quantum efficiency (DQE) data measured for a range of x-ray beam qualities for two full-field digital mammography (FFDM) systems: a caesium iodide (CsI) detector-based unit and a system designed around an amorphous selenium (a-Se) x-ray detector.
Aldo Badano et al.
IEEE transactions on medical imaging, 28(5), 696-702 (2009-03-11)
We quantify the variation in resolution due to anisotropy caused by oblique X-ray incidence in indirect flat-panel detectors for computed tomography breast imaging systems. We consider a geometry and detector type utilized in breast computed tomography (CT) systems currently being
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