Lead (Pb)
Known as one of the oldest metals, native lead rarely occurs naturally. The most common lead-containing minerals are galena, anglesite, cerussite, and minim.
Lead is shiny, bluish-white, and very soft. It's highly malleable, ductile, and conducts electricity poorly. Natural lead is a mixture of four stable isotopes, all from the decay of naturally occurring radioactive elements.
The metal is used in solder, cable covering, plumbing, and ammunition, and as a radiation shield for X-ray equipment and nuclear reactors. Lead compounds are used in batteries, paints, crystal, and flint glass. It's also a cumulative poison and must be handled with care.
Sigma Aldrich Fine Chemicals Biosciences Lead rod, 200mm, diameter 12.7mm, 99.95% | 7439-92-1 | MFCD00134050 | 10EA
Lead rod, 200mm, diameter 12.7mm, 99.95% | Purity: 99.95% | Mol Wt: 207.2 | 7439-92-1 | MFCD00134050 | 10EA
Sigma Aldrich Fine Chemicals Biosciences Lead foil, thickness 0.40 mm, size 300 x 300 mm, purity 99.95% | 7439-92-1 | MFCD00134050 | 5EA
Lead foil, thickness 0.40 mm, size 300 x 300 mm, purity 99.95% | Purity: 99.95% | Mol Wt: 207.2 | 7439-92-1 | MFCD00134050 | 5EA
Sigma Aldrich Fine Chemicals Biosciences Lead foil, 15mm disks, thickness 0.5mm, as rolled, 99.95% | 7439-92-1 | MFCD00134050 | 10EA
Lead foil, 15mm disks, thickness 0.5mm, as rolled, 99.95% | Purity: 99.95% | Mol Wt: 207.2 | 7439-92-1 | MFCD00134050 | 10EA
Sigma Aldrich Fine Chemicals Biosciences Lead wire, length 0.5 m, 0.6 mm diameter, high purity 99.999% | 7439-92-1 | MFCD00134050 | 1EA
Lead wire, length 0.5 m, 0.6 mm diameter, high purity 99.999% | Purity: 99.999% | Mol Wt: 207.2 | 7439-92-1 | MFCD00134050 | 1EA
Sigma Aldrich Fine Chemicals Biosciences Lead foil, 100x100mm, thickness 0.55mm, as rolled, 99.999% | 7439-92-1 | MFCD00134050 | 5EA
Lead foil, 100x100mm, thickness 0.55mm, as rolled, 99.999% | Purity: 99.999% | Mol Wt: 207.2 | 7439-92-1 | MFCD00134050 | 5EA
Sigma Aldrich Fine Chemicals Biosciences Lead foil, light tested, 100x100mm, thickness 0.016mm, as rolled, 96% (Sn 1.5%, Sb 2.5%) | 7439-92-1 | MFCD00134050 | 10EA
Lead foil, light tested, 100x100mm, thickness 0.016mm, as rolled, 96% (Sn 1.5%, Sb 2.5%) | Purity: 96% | Mol Wt: 207.2 | 7439-92-1 | MFCD00134050 | 10EA
Sigma Aldrich Fine Chemicals Biosciences Bullet lead NIST(R) SRM(R) C2416 | 7439-92-1 | MFCD00134050 |
Bullet lead NIST(R) SRM(R) C2416 | Mol Wt: 207.2 | 7439-92-1 | MFCD00134050 |
Electron Microscopy Sciences Beryllium Support Film, 25x25 mm
A beryllium support film will reduce background interference for microanalysis to a minimum. It is particularly useful where analyses for Carbon or silicon are required and supports contain these elements cannot be used.
A deposition of 250 Angstroms thick Beryllium onto the 0.005" thick, 25x25 mm squares of a Cu substrate. The Be can be removed by dissolving the substrate in nitric acid (50:50). The Be film will then be removed from the acid, washed in distilled water and mounted on TEM grids.
Be support film is its very fine grain size which produces a very sharp ring pattern that can be used for in-situ calibration.
Sigma Aldrich Fine Chemicals Biosciences Lead rod, 1000mm, diameter 19.0mm, 99.95% | 7439-92-1 | MFCD00134050 | 1EA
Lead rod, 1000mm, diameter 19.0mm, 99.95% | Purity: 99.95% | Mol Wt: 207.2 | 7439-92-1 | MFCD00134050 | 1EA
Sigma Aldrich Fine Chemicals Biosciences Lead foil, thickness 0.20 mm, diameter 25 mm, purity 99.95% | 7439-92-1 | MFCD00134050 | 10EA
Lead foil, thickness 0.20 mm, diameter 25 mm, purity 99.95% | Purity: 99.95% | Mol Wt: 207.2 | 7439-92-1 | MFCD00134050 | 10EA
Sigma Aldrich Fine Chemicals Biosciences Lead foil, not light tested, 50x50mm, thickness 0.008mm, 99.99+% | 7439-92-1 | MFCD00134050 | 1EA
Lead foil, not light tested, 50x50mm, thickness 0.008mm, 99.99+% | Purity: 99.9+ % | Mol Wt: 207.2 | 7439-92-1 | MFCD00134050 | 1EA
Sigma Aldrich Fine Chemicals Biosciences Lead foil, 100x100mm, thickness 0.55mm, as rolled, 99.999% | 7439-92-1 | MFCD00134050 | 10EA
Lead foil, 100x100mm, thickness 0.55mm, as rolled, 99.999% | Purity: 99.999% | Mol Wt: 207.2 | 7439-92-1 | MFCD00134050 | 10EA