Structure and activity of the constituents of the flotation pine oils was written by Desalbres, L.. And the article was included in Rev. ind. min茅rale in 1956.Quality Control of rel-(1s,4s)-4-(2-Hydroxypropan-2-yl)-1-methylcyclohexanol hydrate This article mentions the following:
Pine oil is widely used in flotation processes. The foaming activity of a pine oil is bound to the presence of terpenic alcs. in C10H18O. The average chem. analysis of pine oils gives: tertiary alcs.:terpineols 60-70%, secondary alcs.:borneol-fenchol 15-20%, hydrocarbons 10-20%. The structural diagrams of these and their subgroups are given. The tertiary hydroxyl group is the most active; then the secondary groups and ether oxides; the ethylenic hydrocarbons have no activity. No exact relation exists between the solubility and the foaming power within a given group. At 15掳, 2.1 g. of terpineol is needed to saturate 1 g. of water, 1 g. of menthanol, 0.44 g. of borneol; menthanol foams the most. The surface activity of a mol. has no relation to its foaming activity: a saturated menthanol sol at 15掳 has a surface tension of 38 dynes/cm., a saturated terpineol sol of 39 dynes/cm. For the same concentration, the menthanol gives a much greater volume of foam. It is the same with the hydrocarbons: saturated cymene sol has a surface tension of 52, of terpinene 51 dynes/cm., but the cymene is nonfoaming while terpinene is. The foaming activity of a mol. seems to be connected therefore to an assembly of characters of a functional and structural order. In the experiment, the researchers used many compounds, for example, rel-(1s,4s)-4-(2-Hydroxypropan-2-yl)-1-methylcyclohexanol hydrate (cas: 2451-01-6Quality Control of rel-(1s,4s)-4-(2-Hydroxypropan-2-yl)-1-methylcyclohexanol hydrate).
rel-(1s,4s)-4-(2-Hydroxypropan-2-yl)-1-methylcyclohexanol hydrate (cas: 2451-01-6) belongs to alcohols. Alcohols are weak acids. The most acidic simple alcohols (methanol and ethanol) are about as acidic as water, and most other alcohols are somewhat less acidic. Grignard and organolithium reagents are powerful tools for organic synthesis, and the most common products of their reactions are alcohols.Quality Control of rel-(1s,4s)-4-(2-Hydroxypropan-2-yl)-1-methylcyclohexanol hydrate
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts