Calconcarboxylic Acid Triturate

Calconecarboxylic Acid Triturate; Mix 1 part of calconcarboxylic acid with 99 parts of sodium chloride.

Test for sensitivityDissolve 50 mg of calconecarboxylic acid triturate in a mixture of 2 mL of strong sodium hydroxide solution and 100 mL of water. The solution is blue but becomes violet on addition of 1 mL of a 1.0% w/v solution of magnesium sulfate and 0.1 mL of a 0.15% w/v solution of calcium chloride and turns pure blue on addition of 0.15 mL of 0.01m sodium edetate.