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The hazards of ammonia solutions depend on the concentration: 'dilute' ammonia solutions are usually 5–10% by weight (< 5.62 mol/L); 'concentrated' solutions are usually prepared at >25% by weight. A 25% (by weight) solution has a density of 0.907 g/cm 3 , and a solution that has a lower density will be more concentrated.
Household ammonia ranges in concentration by weight from 5% to 10% ammonia. [9] Because aqueous ammonia is a gas dissolved in water, as the water evaporates from a surface, the gas evaporates also, leaving the surface streak-free. Its most common uses are to clean glass, [10] porcelain, and stainless steel. It is good at removing grease and is ...
Vapor over anhydrous ammonia [5]; Temp. Pressure ρ of liquid : ρ of vapor : Δ vap H: −78 °C: 5.90 kPa: −75 °C: 7.93 kPa 0.73094 g/cm 3: 7.8241×10 −5 g/cm 3: −70 °C: 10.92 kPa 0.72527 g/cm 3
Ammonium sulfate precipitation is a common method for protein purification by precipitation. As the ionic strength of a solution increases, the solubility of proteins in that solution decreases.
Ammonium is a modified form of ammonia that has an extra hydrogen atom. It is a positively charged molecular ion with the chemical formula NH + 4 or [NH 4] +.It is formed by the addition of a proton (a hydrogen nucleus) to ammonia (NH 3).
The salt is prepared with a two-step process starting with oxidizing a solution of cobalt chloride and ammonia. [1] [2]2 CoCl 2 ·6H 2 O + 10 NH 3 + 2 HCl + H 2 O 2 → 2 [Co(NH 3) 5 (OH 2)]Cl 3 + 12 H 2 O
Travelers go through a TSA Pre checkpoint at the Miami International Airport as some of the year's busiest travel days occur during the holiday season on December 20, 2024 in Miami, Florida.
Molar mass: 231.78 g·mol −1 Appearance violet solid Density: 1.51 g/cm 3: Melting point: decomposes Solubility: soluble in NH 3: Structure Coordination geometry ...