Cesium iodide, 99.999%

Name: Cesium iodide, 99.999%
Brand: Vaqora Chemicals
SKU: VQ-013901

About Cesium iodide, 99.999%

Cesium iodide is an alkali metal compound in Puriss grade carrying the CAS registry number 7789-17-5, specified at 99.999% purity. With the molecular formula CsI, it has a molar mass of 259.81 g/mol. Alternative names: Cesium iodide anhydrous and Caesium iodide.

It is supplied as white powder or crystals. Literature values give a melting point of 626 °C and a density of 4.51 g/mL at 25 °C. Store in a tightly closed container in a cool, dry and well-ventilated place. It carries the GHS signal word “Warning” with 5 hazard statements. Review the Safety Data Sheet before use.

It is commonly used for optics and photonics and materials research. Our customers for this product work in academic and industrial research.

Standard pack sizes are 5 g, 10 g, 25 g and 1 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Optics & photonics
Materials research

Industries

Specifications & identifiers

Chemical identifiers
Product name	Cesium iodide, 99.999%
Catalogue No.	VQ-013901
CAS Number	7789-17-5
IUPAC name	cesium iodide
Molecular formula	CsI
Molecular weight	259.81 g/mol
Exact mass	259.8099
Grade	Puriss
Purity / assay	99.999%
HSN code	28276090
InChIKey	XQPRBTXUXXVTKB-UHFFFAOYSA-M
SMILES	[I-].[Cs+]
PubChem CID	24601

Physical properties
Physical form	Crystalline
Appearance	White powder or crystals
Melting point	626 °C
Density	4.51 g/mL at 25 °C
H-bond donors / acceptors	0 / 1
TPSA	0 Å²
Synonyms	Cesium iodide anhydrous, Caesium iodide, Cesium iodide (CsI), Cesium monoiodide, Cesiumiodide, Dicesium diiodide, Tricesium triiodide, Cesium iodide (Cs2I2), Cesium iodide (Cs3I3), Cesium iodide, ultra dry, cesium(I) iodide

Safety & hazard information (GHS)

Harmful / irritant

Environmental hazard

Signal word: Warning

Hazard statements

H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H335May cause respiratory irritation
H400Very toxic to aquatic life

Precautionary statements: P261, P264, P264 + P265, P271, P272, P273, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P333 + P317, P337 + P317, P362 + P364, P391, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 7789-17-5

Cesium iodide, 99.99%

CAS: 7789-17-5
Formula: CsI
MW: 259.81 g/mol

VQ-013898

Scintillation

Cesium iodide, 99.995%

CAS: 7789-17-5
Formula: CsI
MW: 259.81 g/mol

VQ-013899

Puriss

Cesium iodide, 99.998%

CAS: 7789-17-5
Formula: CsI
MW: 259.81 g/mol

VQ-013900

Cesium iodide, 99.999%+

CAS: 7789-17-5
Formula: CsI
MW: 259.81 g/mol

VQ-013902

AR

Cesium iodide, GR, 99.5%+

CAS: 7789-17-5
Formula: CsI
MW: 259.81 g/mol

VQ-013903

Frequently asked questions

What is the CAS number of Cesium iodide, 99.999%?

The CAS Registry Number of Cesium iodide, 99.999% is 7789-17-5. It is also known as Cesium iodide anhydrous, Caesium iodide, Cesium iodide (CsI).

What is the molecular formula and molecular weight of Cesium iodide, 99.999%?

Cesium iodide, 99.999% has the molecular formula CsI and a molecular weight of 259.81 g/mol. Its IUPAC name is cesium iodide.

Which grade and pack sizes of Cesium iodide, 99.999% can I order?

We supply Cesium iodide, 99.999% in Puriss (99.999%) grade, in 5 g, 10 g, 25 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Cesium iodide, 99.999%?

Yes. Every lot of Cesium iodide, 99.999% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Cesium iodide, 99.999% be shipped internationally?

Yes. Cesium iodide, 99.999% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.