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Urea is Neo-Latin, from French urée, from Ancient Greek οὖρον (oûron) 'urine', itself from Proto-Indo-European *h₂worsom. It is a colorless, odorless solid, highly soluble in water, and practically non-toxic (LD 50 is 15 g/kg for rats). [7] Dissolved in water, it is neither acidic nor alkaline.
The tables below provides information on the variation of solubility of different substances (mostly inorganic compounds) in water with temperature, at one atmosphere pressure. Units of solubility are given in grams of substance per 100 millilitres of water (g/100 ml), unless shown otherwise. The substances are listed in alphabetical order.
The following chart shows the solubility of various ionic compounds in water at 1 atm pressure and room temperature (approx. 25 °C, 298.15 K). "Soluble" means the ionic compound doesn't precipitate, while "slightly soluble" and "insoluble" mean that a solid will precipitate; "slightly soluble" compounds like calcium sulfate may require heat to precipitate.
The solubility of a specific solute in a specific solvent is generally expressed as the concentration of a saturated solution of the two. [1] Any of the several ways of expressing concentration of solutions can be used, such as the mass, volume, or amount in moles of the solute for a specific mass, volume, or mole amount of the solvent or of the solution.
The solubility of urea at 20°C is 107.9 g/100ml of water (Source: "Tablice chemiczne", Adamantan 2004). ... 0,2 is the pKa of protonated urea in water, 26,9 is the ...
Solubility in water. miscible Refractive index (n D) 1.4875-1.4895 Hazards ... N,N′-Dimethylpropyleneurea (DMPU) is a cyclic urea sometimes used as a polar, ...
Hydration stations: Water, electrolyte-enhanced drinks, and smoothies are always within reach to help players stay hydrated and replenish lost nutrients.
[1] [2] As water is an excellent solvent and is also naturally abundant, it is a ubiquitous solvent in chemistry. Since water is frequently used as the solvent in experiments, the word solution refers to an aqueous solution, unless the solvent is specified. [3] [4] A non-aqueous solution is a solution in which the solvent is a liquid, but is ...