The author of 《The experimental study on the influence of crown ethers and glycols on the mutual solubility of lithium bromide in water》 were Krolikowska, Marta; Romanska, Katarzyna. And the article was published in Fluid Phase Equilibria in 2019. Reference of 1,4,7,10,13-Pentaoxacyclopentadecane The author mentioned the following in the article:
In this paper the continuation of our work on searching for anti crystallization additives to the aqueous solution of lithium bromide is presented. This type of research is important from the viewpoint of absorption refrigeration technol. to improve the performance of the efficiency of refrigeration equipment. In this study three crown ethers 12-crown-4 15-crown-5 and 18-crown-6 as well as the glycols ethylene glycol diethylene glycol triethylene glycol and glycerol were investigated as anti crystallization additives for lithiumbromide in water system, conventionally used as a working pair in absorption refrigeration technol. For this purpose the solubility of lithium bromide in water has been detected in the presence of the organic additive. The solubility measurements have been carried out using a dynamic method at a wide temperature and comparision range for different additive to LiBr initial mass fraction from 0.1 0.2 and 0.3. From exptl. SLE data the comparison range of the liquid state for tested systems at the absorbers working temperature was detected and compared to those from conventional LiBr in water system. Further measurements of vapor liquid equillibrium will be performed to select the best anti crystalization additive. In the part of experimental materials, we found many familiar compounds, such as 1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5Reference of 1,4,7,10,13-Pentaoxacyclopentadecane)
1,4,7,10,13-Pentaoxacyclopentadecane(cas: 33100-27-5) is a member of crown ether Ligands. Crown-ethers are macrocyclic polyethers capable of forming host-guest complexes, especially with inorganic and organic cations. Crown-ethers can incorporate protonated primary amine compounds by formation of ion-dipole bonds with the oxygen atoms of the chiral selector. Crown-ethers have been widely used for the separation of several pharmaceuticals both in aqueous and non-aqueous media. Reference of 1,4,7,10,13-Pentaoxacyclopentadecane
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem