Diluted Lead Subacetate

Identification Add 20 g of sample to 20 mL of water, and stir until completely dissolved. Pour the solution into a 500-mL beaker, and add 100 mL of water. Transfer 7 mL of the resulting solution into 250-mL beaker and add 0.2 mL of diluted lead subacetate TS. No precipitate forms. Add 280 mL of 95% ethyl alcohol to the remainder of the solution. A precipitate forms. 

Identification Add 0.2 mL of diluted lead subacetate TS to 10 mL of a cold 1 50 aqueous solution. A flocculent or curdy, white precipitate forms immediately. 

Dillseed Oleoresin, 392, 393 Dillweed Oil, American Type, 123, 582 Diluted Acetic Acid TS, 849 Diluted Alcohol, 849 Diluted Hydrochloric Acid TS, 852 Diluted Lead Subacetate TS, 852 Diluted Nitric Acid TS, 853 Diluted Sulfuric Acid TS, 855 Dimagnesium Phosphate, 233... 

Copper and Iron, — On acidifying 10 cc. of lead subacetate solution with 2 cc. of dilute acetic acid, and adding potassium ferrocyanide solution, a precipitate forms which should have a pure white color. 

Lead Subacetate Solution Dissolve 80 g of lead subacetate in 220 mL of water. Stir overnight, and filter through Whatman No. 42 filter paper, or equivalent. Dilute the supernatant solution to a specific gravity of 1.254 with freshly boiled water. 

Lead Subacetate TS, Diluted Dilute 3.25 mL of Lead Subacetate TS with sufficient water, recently boiled and cooled, to make 100 mL. Store in small, well-fitted, tight containers. 

Dilute Solution of Lead Subacetate, B.P, A 1. 80 dilution of the strong solution with water. 

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