• British Pharmacopoeia Volume V
  • Appendices
  • Appendix I A. General Reagents

Xylenol Orange Triturate

Xylenol Orange Triturate Triturate 1 part of xylenolorange with 99 parts of potassium nitrate.

Complies with the following test.

Sensitivity Add 50 mg to a mixture of 50 mL of water, 1 mL of 2m acetic acid and 0.05 mL of lead nitrate solution. Add sufficient hexamine to change the colour from yellow to violet-red, and add 0.1 mL of 0.1m disodium edetate VS. The colour changes to yellow.