Lead(II) nitrate
From Crystal growing
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Lead(II) nitrate | |
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Names: | lead(II) nitrate lead(II) dinitrate
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Formula: | Pb(NO3)2 |
SMILES: | [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[Pb+2] |
Molar mass: | 331.208 g/mol |
Density: | 4.53 g/cm3 |
Crystal system: | cubic a=7.84 Å, b=7.84 Å, c=7.84 Åα=90°, β=90°, γ=90° |
Shapes: |
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Color: | colorless white |
Decomposition point: | 270 °C543.15 K <br />518 °F <br />977.67 °R <br /> |
Refractive index: | 1.782 |
Magnetic properties: | diamagnetic χ=-7.40 · 10-5cm³/mol |
Stability: | stable |
Hardness: | fragile |
Toxicity: | moderately toxic LD50=500mg/kg |
Description
Precursors
Reaction between lead(II) oxide, hydroxide, carbonate or hydroxycarbonate and nitric acid
Chemical equation:
For preparation of
Add acid to the flask, then add small parts of lead compound with stirring until it will totally dissolve or, if you use carbonate, until carbon dioxide emission will stop. After reaction will stop, filter the solution and use it for crystal growing.100.00
g of lead(II) nitrate а 67.39
g of lead(II) oxide or 72.83
g of hydroxide or 80.68
g of carbonate or 76.75
g of hydroxycarbonate and 58.54
g of 65%
acid is required.Reaction between metal lead and diluted nitric acid
Chemical equation:
For preparation of
Add diluted acid solution to the flask, then add lead pieces, shavings or powder and stir it until gas emission will stop.100.00
g of lead(II) nitrate а 62.56
g of pure lead and 78.05
g of 65%
acid is required.Influence of impurities
About 10-4 % of methylene blue in solution changes crystal form to cubooctahedron.Influence of pH level
Is water soluble only at low pH level (0...3), achieved by addition of nitric acid. At higher pH values completely hydrolyzes to basic salts.Notes
Dissolving is endothermic, solution cools much.Storage conditions
Store in its original form or under several layers of varnish at average humidity and room temperature. Do not store in matchboxes or cotton wool and do not heat.Solubility
Temperature | гр/100,00 гр water | гр/100,00 гр ethanol | гр/100,00 гр ethanol 50% | гр/100,00 гр methanol | гр/100,00 гр pyridine |
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0°C273.15 K <br />32 °F <br />491.67 °R <br /> | 36.4 | 4.39 | |||
10°C283.15 K <br />50 °F <br />509.67 °R <br /> | 45.5 | ||||
15°C288.15 K <br />59 °F <br />518.67 °R <br /> | ~48.9 | ||||
20°C293.15 K <br />68 °F <br />527.67 °R <br /> | 52.2 | 0.04 | 8.77 | ||
25°C298.15 K <br />77 °F <br />536.67 °R <br /> | 56.5 | 1.42 | 5.46 | ||
30°C303.15 K <br />86 °F <br />545.67 °R <br /> | ~62.0 | ||||
40°C313.15 K <br />104 °F <br />563.67 °R <br /> | 72.89 | ||||
50°C323.15 K <br />122 °F <br />581.67 °R <br /> | ~82.8 | ||||
60°C333.15 K <br />140 °F <br />599.67 °R <br /> | 92.64 | ||||
70°C343.15 K <br />158 °F <br />617.67 °R <br /> | ~101 | ||||
80°C353.15 K <br />176 °F <br />635.67 °R <br /> | 110.3 | ||||
90°C363.15 K <br />194 °F <br />653.67 °R <br /> | ~119 | ||||
100°C373.15 K <br />212 °F <br />671.67 °R <br /> | 127.3 |
Gallery
Without acid additionLead(II) nitrate, Vladimir Semikin, VKontakteVKontakte
Under the microscopeLead(II) nitrate, Cran Cowan, Flickr albumFlickr album
Under the microscopeLead(II) nitrate, Cran Cowan, Flickr albumFlickr album
Video
Sources
Lead compounds | |
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Lead (Pb) • Lead(II) acetate (Pb(CH3COO)2) • Lead(II) citrate (Pb3(C6H5O7)2) • Lead(II) chloride (PbCl2) • Lead(II) formate (Pb(COOH)2) • Lead(II) iodide (PbCO3) • Lead(II) nitrate (Pb(NO3)2) • Lead(II) tartrate (PbC4H4O6) |