Otsubo, Takumu et al. published their research in International Journal of Refrigeration in 2022 | CAS: 57-55-6

1,2-Propanediol (cas: 57-55-6) 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. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.HPLC of Formula: 57-55-6

PCM Slurry using Ammonium Alum and Propylene Glycol for Heat Transportation was written by Otsubo, Takumu;Hidema, Ruri;Suzuki, Hiroshi. And the article was included in International Journal of Refrigeration in 2022.HPLC of Formula: 57-55-6 This article mentions the following:

A phase-change material (PCM) slurry for storing and transporting waste heat was studied. The PCM used in this study was ammonium aluminum sulfate dodecahydrate (ammonium alum). Ammonium alum has a m.p. of 93.5°C and a latent heat of 259.9 kJ kg-1; however, ammonium alum slurry (prepared by mixing ammonium alum and water) has a lower latent heat of 12.1 kJ kg-1 (at a mass fraction of AlNH4(SO4)2 of 15 wt%) owing to its high solubility To decrease the solubility of ammonium alum, novel ammonium alum slurry was proposed using propylene glycol (PG) as a poor solvent. In this study, the solubility of ammonium alum in PG and water mixtures was measured. The phase change characteristics were measured using differential scanning calorimetry (DSC). The effects of the mass fraction of ammonium alum and the mass fraction of PG on the m.p. and latent heat of the PCM were investigated. It was observed that when the mass fraction of PG increased, the latent heat and m.p. increased. In this case, for the same m.p., the volume of particles of ammonium alum can be reduced by adding PG. The viscosity of the saturated ammonium alum solution was measured using a rheometer. The viscosity of the slurry was estimated using Einstein′s viscosity equation. The heat-transfer efficiency of the prepared ammonium slurry was analyzed based on these results. It was concluded that the slurry proposed in this study is effective for heat transportation. In the experiment, the researchers used many compounds, for example, 1,2-Propanediol (cas: 57-55-6HPLC of Formula: 57-55-6).

1,2-Propanediol (cas: 57-55-6) 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. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.HPLC of Formula: 57-55-6

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts