0.01 M Lead Nitrate VS
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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)
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Pb (NO3)2, 331.21
3.312 g in 1000 mL
Xylenol Orange Triturate: Triturate 1 part of xylenol orange with 99 parts of potassium nitrate.
0.1 M Lead Nitrate: Dissolve 33 g of lead nitrate in 1000 mL of water.
Standardization: To 20.0 mL of the lead nitrate solution add 300 mL of water. Add about 50 mg of Xylenol Orange Triturate, if the solution is not violet-pink, (USP 1-May-2019) and add methenamine until the solution becomes violet-pink. Titrate with 0.1 M edetate disodium VS to the yellow endpoint. Calculate the molarity.
Dilute 50.0 mL of 0.1 M Lead Nitrate to 500.0 mL with water.
[Note - If this volumetric solution is used in a qualitative application such as pH adjustment, dissolution medium, or diluent, its standardization is not required.]
