Practical 20  CinC

Exp. 5                                 HazCard : 59A, 19A, 10A, 91A, 95A, 98B            Small volume of chemical 125ml is enough

• Test tubes

• Teat pipettes (use poly-top bottle pipette top)

• Magnesium solution 0.1mol. (Mg2+) 25g of Mg(NO3) to 1L (or 20g of MgCl2-6H2O) for 400ml 8g of MgCl2 (tape water fine)

• Calcium solution 0.1mol. (Ca2+) 25g of Ca(NO3 or 10g of Anhydrous CaCl2 per L (Fused or granules)) for 400ml 4g of CaCl2 (tape water fine)

• Barium solution 0.1mol.(Ba2+) 25g of Ba(NO3) or (25g of BACl2-2H2O per L) for 400ml 10g of BaCl2 (in Distilled water)

• Sodium Hydroxide 1mol. (OH-) 40g of NAOH per L (From Stock bottle )

• bungs

• Sodium Sulfate 1 mol. (Na2SO4 2-) for 400ml 56.8g Na2SO4 of warm tape tap water

• Sodium Carbonate 1 mol. (Na2CO3 2-) for 400ml 42.39g of Na2CO3 of warm rap water

                                                                                                                                           test tubes and buns for test tubes

Sodium Hydroxide solution 1 mol. from ready made trays                                 2X 200ml of each solution with pipette top