Lead (II) Acetate Trihyradrate

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Lead(II) acetate(Pb(CH3COO)2), also known as lead acetatelead diacetateplumbous acetatesugar of leadlead sugarsalt of Saturn, or Goulard's powder, is a white crystalline chemical compound with a sweetish taste. With water, it forms the trihydrate, Pb(CH3COO)2·3H2O, a colourless or white efflorescent monoclinic crystalline substance. The substance is used as a reagent to make other lead compounds and as a fixative for some dyes. In low concentrations, it is the principal active ingredient in progressive types of hair colouring dyes.[6] Lead(II) acetate is also used as a mordant in textile printing and dyeing, and as a drier in paints and varnishes. It was historically used as a sweetener and for cosmetics.

Pb(C2H3O2)2
Molar mass 325.29 g/mol (anhydrous)
379.33g/mol (trihydrate)
Appearance White powder or colourless, efflorescent crystals
Odor Slightly acetic
Density 3.25 g/cm3 (20 °C, anhydrous)
2.55 g/cm3 (trihydrate)
1.69 g/cm3 (decahydrate)[1]
Melting point 280 °C (536 °F; 553 K) (anhydrous)
75 °C (167 °F; 348 K)
(trihydrate) decomposes[4] at ≥ 200 °C
22 °C (72 °F; 295 K)
(decahydrate)[1]
Boiling point Decomposes
Anhydrous:
19.8 g/100 mL (0 °C)
44.31 g/100 mL (20 °C)
69.5 g/100 mL (30 °C)[2]
218.3 g/100 mL (50 °C)[1]
Solubility Anhydrous and trihydrate are soluble in alcohol, glycerol[2]
Solubility in methanol Anhydrous:[2]
102.75 g/100 g (66.1 °C)
Trihydrate:[3]
74.75 g/100 g (15 °C)
214.95 g/100 g (66.1 °C)
Solubility in glycerol Anhydrous:[2]
20 g/100 g (15 °C)
Trihydrate:[3]
143 g/100 g (20 °C)
−89.1·10−6 cm3/mol
1.567 (trihydrate)

 

 

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