# C76: PJ ## Mail sol. C76 1 ml **Stock solution (CaCl2/KCl)** 1 ml K2HPO4 (0.51 g/100 ml stock solution) 1 ml MgSO4 x 7 H2O (0.28 g/100 ml stock solution) 1000 ml Deionized water 1. Make up to 1 litre with deionized water. Autoclave at 15 psi for 15 minutes. ## Stock solution (CaCl2/KCl) 0.43 g CaCl2 x 2 H2O 0.16 g KCl