Miscible in the context of "Wettability"

Wetting is the ability of a liquid to maintain contact with a solid surface by displacing another substance or material - either a gas, or other liquid not miscible with the wetting liquid - due to the differential strength of intermolecular interactions with the surface.

The degree of wetting, or wettability, is dependent on the force balance between adhesive and cohesive forces, occurring when liquid and solid make contact in the presence of another physical phase. As such, wetting is of importance to bonding and adherence of substances in different phases.

Glycerol (/ˈɡlɪsərɒl/) is an organic compound with chemical formula C₃H₅(OH)₃. It has a three-carbon backbone and is a simple triol compound (an alcohol with three hydroxyl groups). It is a colorless, odorless, sweet-tasting, viscous liquid. Because of its three hydroxyl groups, glycerol is miscible with water and is hygroscopic in nature.

The glycerol backbone is found in lipids known as glycerides, where one or more of the hydroxyl groups are esterified with fatty acids. The most abundant of glycerides are triglycerides (found in animal fats and vegetable oils), it is where glycerol is most commonly found in nature. It is also widely used as a sweetener in the food industry and as a humectant in pharmaceutical formulations.

Dimethyl sulfoxide (DMSO) is an organosulfur compound with the formula (CH₃)₂S=O. This colorless liquid is the sulfoxide most widely used commercially. It is an important polar aprotic solvent that dissolves both polar and nonpolar compounds and is miscible in a wide range of organic solvents as well as water. It has a relatively high boiling point. DMSO is metabolised to compounds that leave a garlic-like taste in the mouth after DMSO is absorbed by skin.

In terms of chemical structure, the molecule has idealized C_s symmetry. It has a trigonal pyramidal molecular geometry consistent with other three-coordinate S(IV) compounds, with a nonbonded electron pair on the approximately tetrahedral sulfur atom.

Dichloromethane (DCM, methylene chloride, or methylene bichloride) is an organochlorine compound with the formula CH₂Cl₂. This colorless, volatile liquid with a chloroform-like, sweet odor is widely used as a solvent. Although it is not miscible with water, it is slightly polar and miscible with many organic solvents.

Diethylene glycol (DEG) is an organic compound with the formula (HOCH₂CH₂)₂O. It is a colorless, practically odorless, and hygroscopic liquid with a sweetish taste. It is a four carbon dimer of ethylene glycol. It is miscible in water, alcohol, ether, acetone, and ethylene glycol. DEG is a widely used solvent. It can be a normal ingredient in various consumer products, and it can be a contaminant. DEG has also been misused to sweeten wine and beer, and to viscosify oral and topical pharmaceutical products. Its use has resulted in many epidemics of poisoning since the early 20th century.

A separatory funnel, also known as a separation funnel, separating funnel, or colloquially sep funnel, is a piece of laboratory glassware used in liquid-liquid extractions to separate (partition) the components of a mixture into two immiscible solvent phases of different densities. Typically, one of the phases will be aqueous, and the other a lipophilic organic solvent such as ether, MTBE, dichloromethane, chloroform, or ethyl acetate. All of these solvents form a clear delineation between the two liquids. The more dense liquid, typically the aqueous phase unless the organic phase is halogenated, sinks to the bottom of the funnel and can be drained out through a valve away from the less dense liquid, which remains in the separatory funnel.

Propylene glycol (IUPAC name: propane-1,2-diol) is a viscous, colorless liquid. It is almost odorless and has a faintly sweet taste. Its chemical formula is CH₃CH(OH)CH₂OH. As it contains two alcohol groups, it is classified as a diol. An aliphatic diol may also be called a glycol. It is miscible with a broad range of solvents, including water, acetone, and chloroform. In general, glycols are non-irritating and have very low volatility.

For certain uses as a food additive, propylene glycol is considered as GRAS by the US Food and Drug Administration, and is approved for food manufacturing. In the European Union, it has E-number E1520 for food applications. For cosmetics and pharmacology, the number is E490. Propylene glycol is also present in propylene glycol alginate, which is known as E405.