Exercise 6. Hydrated Lead Acetate

EXERCISE 6. HYDRATED LEAD ACETATE, Pb(C2Hs02)2-3H20 

This process of seeding or inoculation should be resorted to before evaporating further in every case in which it is suspected that supersaturation has occurred. It is of advantage to proceed as follows Evaporate until you feel certain that crystallization should occur on cooling. Obtain a little of the solid and powder it in a mortar. From time to time, dust a little of the powder into the solution as it cools. When saturation is 

References Basic acetates of lead, Jackson, J. Am. Chem. Soc., 36, 2346 (1914) Supersaturation, Friend, I, 110 Mellor, I, 460. 

Additional Exercises Calcium chloride, CaCl2-6H20 sodium thiosulfate, Na2S203-6H20. 

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