Potassium citrate is usually administered by mouth in dilute aqueous solution. It is soluble in water and dilute nitric acid. It is insoluble in water but soluble in alcohol and dilute alkali solutions. Normal volume hyponatremia is divided into cases with dilute urine and concentrated urine. Oxidation with ammonium persulfate and dilute caustic soda gives bismuth tetroxide. It dissolves with effervescence in dilute nitric acid. Their kidneys produce dilute urine for excretion. It is soluble in dilute acids. It is susceptible to weathering and dissolves slowly in most dilute acids. It is unaffected by ordinary solvents, dilute acids, or fused alkalis. This reduces the water content of the food, which would otherwise dilute the vinegar. Nitric acid will continue to act as an oxidant in dilute and cold conditions. Some evaporators are sensitive to differences in viscosity and consistency of the dilute solution. Available chlorine refers to chlorine liberated by the action of dilute acids on hypochlorite. Terephthalic acid was produced by oxidation of "p"-xylene with dilute nitric acid.