Zinc, Zn—At. Wt. 65.39—Use ACS reagent grade.

Zinc Acetate, Zn(CH3COO)2·2H2O—219.51—Use ACS reagent grade.

Zinc Amalgam —Add 54 g of mossy or granular zinc to 100 mL of mercury in a beaker. Heat, with stirring, on a hot plate under a hood [Caution—mercury vapor is extremely toxic] until solution of the zinc is complete or practically so. Allow to cool to room temperature, and if necessary add sufficient mercury to prevent solidification of the amalgam. Transfer the amalgam to a glass-stoppered bottle, and shake a few times with dilute hydrochloric acid (1 in 2), to remove any zinc oxide formed.

Zinc Chloride, Anhydrous, Powdered —Use Zinc Chloride (USP monograph) that has been dried and powdered.

Zirconyl Chloride, Octahydrate, Basic —Use Zirconium Oxychloride.

Zirconyl Nitrate, ZrO(NO3)2—231.23—Use a suitable grade.