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Acetonitrile is used mainly as a solvent in the purification of butadiene in refineries. Specifically, acetonitrile is fed into the top of a distillation column filled with hydrocarbons including butadiene, and as the acetonitrile falls down through the column, it absorbs the butadiene which is then sent from the bottom of the tower to a second separating tower.
Structure and properties Index of refraction, n D: 1.344 at 20.0 °C [1] Abbe number? ... log 10 of Acetonitrile vapor pressure. Uses formula ...
A variety of food colorings, added to beakers of water. Food coloring, color additive or colorant is any dye, pigment, or substance that imparts color when it is added to food or beverages. Colorants can be supplied as liquids, powders, gels, or pastes. Food coloring is commonly used in commercial products and in domestic cooking.
This page contains tables of azeotrope data for various binary and ternary mixtures of solvents. The data include the composition of a mixture by weight (in binary azeotropes, when only one fraction is given, it is the fraction of the second component), the boiling point (b.p.) of a component, the boiling point of a mixture, and the specific gravity of the mixture.
Food coloring allows us to bring new life to intricately decorated sugar cookies, gelatin desserts, and the frosting used to decorate layer cakes and cupcakes—and so much more.
Solvent Density (g cm-3) Boiling point (°C) K b (°C⋅kg/mol) Freezing point (°C) K f (°C⋅kg/mol) Data source; Aniline: 184.3 3.69 –5.96 –5.87 K b & K f [1] Lauric acid: 298.9 44 –3.9 Acetic acid: 1.04 117.9 3.14 16.6 –3.90 K b [1] K f [2] Acetone: 0.78 56.2 1.67 –94.8 K b [3] Benzene: 0.87 80.1 2.65 5.5 –5.12 K b & K f [2 ...
The color of a packet of M&Ms, for example, can tell you whether they’re peanut, regular, crispy or caramel, while a yellow cap on a Coca-Cola bottle means something else entirely. And if you ...
The donor number is a measure of the ability of a solvent to solvate cations and Lewis acids. The method was developed by V. Gutmann in 1976. [2] Likewise Lewis acids are characterized by acceptor numbers (AN, see Gutmann–Beckett method). Typical solvent values are: [3] acetonitrile 14.1 kcal/mol (59.0 kJ/mol) acetone 17 kcal/mol (71 kJ/mol)