21004

Cesium iodide

analytical standard, suitable for mass spectrometry (MS)

• Formule empirique (notation de Hill) : CsI
• Numéro CAS: 7789-17-5
• Poids moléculaire : 259.81
• NACRES: NA.24
• PubChem Substance ID: 329752071
• UNSPSC Code: 41116107
• EC Number: 232-145-2
• MDL number: MFCD00010962

Propriétés

• grade: analytical standard
• Quality Segment: 100
• assay: 99.999%
• technique(s): mass spectrometry (MS): suitable
• mp: 626 °C (lit.)
• density: 4.51 g/mL at 25 °C (lit.)
• application(s): cleaning products; cosmetics; flavors and fragrances; food and beverages; personal care
• format: neat
• SMILES string: [I-].[Cs+]
• InChI: 1S/Cs.HI/h;1H/q+1;/p-1
• InChI key: XQPRBTXUXXVTKB-UHFFFAOYSA-M

Description

General description

Cesium iodide is a simple ionic salt. It has the capacity to undergo second order transformation from cubic B2 structure to body-centered tetragonal structure at low pressures. It is mostly used as input screens of X-ray image intensifiers.

Application

Suitable as standard for electrospray ionisation MS (ESI)

Cesium iodide has been used as calibration standard during native electrospray ionization time-of-flight mass spectrometry (ESI-TOF MS) analysis for measuring protein samples, from protein aggregates.

Features and Benefits

Frequently used in devices such as phosphor screens for medical imaging, scintillators, calorimeters and a variety of particle detectors.

Informations sur la sécurité

• pictograms: GHS08,GHS09
• signalword: Warning
• hcodes: H361fd,H400
• pcodes: P202 - P273 - P280 - P308 + P313 - P391 - P405
• Hazard Classifications: Aquatic Acute 1 - Repr. 2
• Classe de stockage: 13 - Non Combustible Solids
• wgk: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: dust mask type N95 (US), Eyeshields, Faceshields, Gloves