| abstract |
An object of the present invention is to provide a reaction solution having excellent storage stability and preventing bleeding, and a recording method using the reaction solution. SOLUTION: A calcium salt having a solubility in water of 25% or less in an aqueous solution at 25 ° C., an ammonium salt having an anion that does not form calcium and a sparingly soluble salt, and water, and containing ammonium in the ammonium salt The reaction solution, wherein the ratio of the molar concentration of calcium in the calcium salt to the molar concentration is 9.74 or less. [Selection figure] None |