Caesium iodide

Basic Information

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CAS Number

7789-17-5

Molecular Formula

CsI

Molecular Weight

259.81 g/mol

Chemical Classification

Water Treatment Chemicals Disinfectants Chlorine Compounds

Basic Physical Properties

Melting Point

626 °C

Boiling Point

1280 ºC

Density

4.51 g/mL at 25 °C

Water Solubility

74 g/100 mL (20 ºC)

Flash Point

1280°C

Refractive Index

1.7876

SMILES

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[I-].[Cs+]

InChI

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

InChIKey

XQPRBTXUXXVTKB-UHFFFAOYSA-M

LogP

-2.99600

Complexity

Safety Information

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Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Stability

Stable. Deliquescent.

Sensitiveness

Hygroscopic

Toxicity

LD50 i.p. in rats: 1.4 g/kg (Cochran)

Synonyms & References

English

WLN: CS I
NSC-15199
DTXSID3064859
AKOS015833256
Q50703
CESIUM IODIDE
7789-17-5
EINECS 232-145-2
Cesium iodide (Cs2I2)
NS00080503
Cesium iodide (CsI)
NSC 15199
FT-0623568
EC 232-145-2
UNII-U1P3GVC56L
SY023491
Tricesium triiodide
Cesium iodide, 99.9% Trace metals grade
AKOS015902666
NSC15199
Caesium iodide
MFCD00010962
Cesium iodide, ultra dry
CESIUM IODIDE [MI]
SB66393
Dicesium diiodide
C2205
Cesium monoiodide
XQPRBTXUXXVTKB-UHFFFAOYSA-M
A839266
cesium;iodide

MDL Number

MFCD00010962

Customs Code

2827600000

FAQ

What is Caesium iodide (CAS: 7789-17-5)?

Caesium iodide is a chemical compound with the formula CsI. It appears as a white crystalline solid, highly soluble in water, and exhibits strong ionic character. This compound is known for its high thermal and electrical conductivity, making it valuable in various scientific and industrial applications. Its CAS number is 7789-17-5, and it is commonly used in research and specialized manufacturing processes.

What are the main uses of Caesium iodide (CAS: 7789-17-5)?

Caesium iodide is primarily used in scintillation detectors for radiation imaging, as a source of caesium ions in pharmaceuticals, and in the production of specialized glass and ceramics. It also finds applications in optical devices, such as night vision technology, and in research for its unique luminescent properties. The CAS number 7789-17-5 identifies it as a key material in these fields.

Is Caesium iodide (CAS: 7789-17-5) safe?

Caesium iodide is considered hazardous if mishandled. It can cause skin irritation, eye damage, and respiratory issues upon inhalation or ingestion. Safety measures include wearing protective gloves, goggles, and masks when handling. It is regulated under safety standards like OSHA and EPA, and proper disposal is essential to minimize risks. Always follow guidelines for handling chemical substances with CAS number 7789-17-5.

How should Caesium iodide (CAS: 7789-17-5) be stored?

Caesium iodide should be stored in a cool, dry, and dark place, away from moisture and incompatible materials. Keep it in a sealed, airtight container made of glass or plastic, and ensure it is stored at temperatures below 25°C. Avoid exposure to light and heat, and maintain controlled humidity levels. Storage conditions for CAS number 7789-17-5 require careful attention to stability and safety.