Zinc Amalgam
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This article is compiled based on the United States Pharmacopeia (USP) – 2025 Edition
Issued and maintained by the United States Pharmacopeial Convention (USP)
—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 sucient mercury to prevent solidication 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.
