Thermal storage performance of eutectic sugar alcohols applied to buildings and enhancement of crystallization was written by Fan, Chenguang;Yuan, Guofeng;Wang, Yan;Zhang, Yu;Wang, Zhifeng. And the article was included in Solar Energy in 2022.Recommanded Product: 149-32-6 This article mentions the following:
Sugar alcs. are suitable for compact and high-d. building thermal energy storage systems because of the high enthalpy, low price, and non-toxicity. But most sugar alc. materials have severe supercooling characteristic, which limits their application as phase change materials (PCMs) in thermal energy storage systems. In this study, xylitol, sorbitol, erythritol, mannitol and dulcitol were selected as PCMs. Based on the five single sugar alcs., ten multicomponent eutectic sugar alcs. were obtained which melting temperatures is between 60°C and 90°C applied to buildings. The thermal parameters of sugar alcs. were tested by differential scanning calorimetry (DSC), the supercooled eutectic sugar alcs. were stimulated by means of mech. agitation to accelerate crystallization The crystallization after excitation was monitored by microscope, and the supercooled crystallization phenomenon of eutectic sugar alcs. was investigated by isothermal phase change tests. The results showed that only three eutectic sugar alcs. could crystallize by stirring, and the melting temperatures of three eutectic sugar alcs. are about 80°C. After multiple repetitive experiments, three eutectic sugar alcs. still have good crystallization characteristics. The results of the research provide a reference value in practical aspects for the design and selection of phase change materials in buildings. In the experiment, the researchers used many compounds, for example, (2R,3S)-rel-Butane-1,2,3,4-tetraol (cas: 149-32-6Recommanded Product: 149-32-6).
(2R,3S)-rel-Butane-1,2,3,4-tetraol (cas: 149-32-6) belongs to alcohols. A strong base can deprotonate an alcohol to yield an alkoxide ion (R―O−). For example, sodamide (NaNH2), a very strong base, abstracts the hydrogen atom of an alcohol. A multistep synthesis may use Grignard-like reactions to form an alcohol with the desired carbon structure, followed by reactions to convert the hydroxyl group of the alcohol to the desired functionality.Recommanded Product: 149-32-6
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts