A database about Preparation of Laboratory Reagents. A Project of SCIENCE Pakistan

Tollen's reagent

1. Place 5 cm3 5% (w/w) silver nitrate solution in a text tube and add a small amount of dilute sodium hydroxide (four or five drops of 0.4 mol dm-3) and shake gently.
2. Add 1M ammonium hydroxide dropwise, with gentle shaking, until the precipitate just dissolves.
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