15690-63-8

Basic information

• Product Name: CESIUM (131 CS) CHLORIDE
• Synonyms: Cesium chloride Cs 131; (~131~Cs)caesium chloride
• CAS NO: 15690-63-8
• Molecular Formula: Cl¹³¹Cs
• Molecular Weight: 166.453
• Mol File: 15690-63-8.mol
• Article Data: 21

Chemical Properties

• Vapor Pressure: 33900mmHg at 25°C
• CAS DataBase Reference: CESIUM (131 CS) CHLORIDE(CAS DataBase Reference)
• NIST Chemistry Reference: CESIUM (131 CS) CHLORIDE(15690-63-8)
• EPA Substance Registry System: CESIUM (131 CS) CHLORIDE(15690-63-8)

Safety Data

• Hazardous Substances Data: 15690-63-8(Hazardous Substances Data)

Usage

General Description

Cesium chloride (131Cs) is a radioactive chemical compound with the symbol CsCl. It is used in medical treatments, particularly in cancer therapy, where it is injected directly into the tumor to deliver radiation and destroy the cancer cells. Cesium chloride works by inhibiting the spread of cancer cells and inducing apoptosis, or programmed cell death, in the tumor. Due to its radioactive nature, it is carefully handled and administered under strict guidelines to minimize potential radiation exposure to healthcare workers and patients. Additionally, it is important to properly dispose of any unused cesium chloride to prevent contamination of the environment.

Upstream product

• 13106-69-9 caesium methoxide 
• 13400-13-0 cesium fluoride 
• 10025-87-3 trichlorophosphate 
• 7647-01-0 hydrogenchloride 
• 534-17-8 caesium carbonate 
• 13454-84-7 cesium perchlorate 
• 60-35-5 acetamide 
• 676-96-0 Trimethylphosphine oxide 

Downstream Products

• 72128-24-6 cesium germanium (II) chloride 
• 38682-55-2 Cs⁽¹⁺⁾*H₂O=Cs(H₂O)⁽¹⁺⁾ 
• 18459-37-5 caesium⁽¹⁺⁾ 
• 18424-16-3 cesium hexafluoroarsenate 
• 7790-39-8 platinum(II) iodide 

Relevant articles and documents

Heats of solution/substitution of Tl+, Rb+, K+, Br-, I- in crystalline CsCl from heats of solid phase transition by differential scanning calorimetry

Measurements of the change in heat (enthalpy) of transition in crystalline CsCl effected by the presence of guest ions K+, Rb+, Tl+, Br-, I- using differential scanning calorimetry are reported. The n

Studies with the rhenacarborane Cs[Re(CO)3(η5-7,8-C2B9H 11)]: Surprising reactivity with a range of metal ligand fragments

The rhenacarborane salt Cs[Re(CO)3(η5-7,8-C2B9H 11)] (1) has been synthesized in excellent yield using a new procedure. Treatment of CH2Cl2 solutions of 1 with [RuCl2(PPh3)3] yields the exo-closo complex [Re(CO)3(η52,3,10-(μ-H) 3-exo-{RuCl(PPh3)2}-7,8-C2B 9H8)] (2a). In this molecule a [RuCl(PPh3)12]+ moiety is exopolyhedrally bound via three B - H - Ru bonds to a closo-3,1,2-ReC2B9 system. An X-ray diffraction study revealed that one of these agostic interactions utilizes a β-B-H bond in the coordinating CCBBB face of the cage, while the source of the remaining two B - H - Ru bonds is in the 65 belt. The anion of salt 1 also binds exopolyhedral [Rh(PPh3)2]+ and [Rh{Fe(η-C5H4PPh2)2}] + fragments in the complexes [Re-(CO)3(η5-5,10-(μ-H)2-exo-(RhL 2)-7,8-C2B9H9)] (L2 = (PPh3)2 (3a), {Fe(η-C5H4PPh2)2} (3b)). Reaction of 1 with the salts [M(CO)2(THF)(η-C5H5)] [BF4] (M = Fe, Ru) and [Fe(CO)2(THF)-(η-C5Me5)][BF4] gives the complexes [Re(CO)3(η5-n-(μH)-exo-{M(CO) 2(η-C5R5)}-7,8-C2B 9H10)] (M = Fe, R = H, n = 10 (4a); M = Ru, R = H, n = 10 (4b); M = Fe, R = Me, n = 10 (4c), 9 (4d)) with isomers 4c and 4d formed as an inseparable mixture. An X-ray structural study on 4b revealed that there was no Re-Ru bond and that an exro-[Ru(CO)2(η-C5H5)]+ fragment is bound to the rhenacarboranyl anion by a single unsupported B - H - Ru interaction with an unusually long B - Ru distance (2.695(13) A?). The compounds [ReM(μ-10-H-η5-7,8-C2B9H 10)-(CO)3(PPh3)] (M = Cu (5a), Ag (5b)) were isolated from the reaction of 1 with sources of the fragments [M(PPh3)]+ (M = Cu, Ag). X-ray structure determinations of both species 5 revealed the presence of direct Re - M (M = Cu, Ag) connectivities bridged by carborane β-B - H - M interactions. In solution the complexes 5 are highly dynamic on the NMR time scale, even at low ( - 90°C) temoeratures.

Ion Exchange of Layered Alkali Titanates (Na2Ti3O7, K2Ti4O9, and Cs2Ti5O11) with Alkali Halides by the Solid-State Reactions at Room Temperature

Ion exchange of layered alkali titanates (Na2Ti3O7, K2Ti4O9, and Cs2Ti5O11) with several alkali metal halides surprisingly proceeded in the solid-state at room temperature. The reaction was governed by thermodynamic parameters and was completed within a shorter time when the titanates with a smaller particle size were employed. On the other hand, the required time for the ion exchange was shorter in the cases of Cs2Ti5O11 than those of K2Ti4O9 irrespective of the particle size of the titanates, suggesting faster diffusion of the interlayer cation in the titanate with lower layer charge density.