27052
Screw cap (open-top), polypropylene
black polypropylene cap, thread for 8-425, for use with 2 mL vial (standard opening), pkg of 100 ea
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About This Item
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material
black polypropylene cap
feature
autoclavable
closure type black polypropylene hole cap
packaging
pkg of 100 ea
parameter
135 °C temp. limit
fitting
thread for 8-425
compatibility
for use with 2 mL vial (standard opening)
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This Item | 204277 | 248800 | 298123 |
|---|---|---|---|
| form powder | form crystalline | form powder and chunks | form powder and chunks |
| assay 99.9% trace rare earth metals basis | assay ≥99.99% trace metals basis | assay ≥99% | assay 99.9% trace metals basis |
| Quality Level 100 | Quality Level 200 | Quality Level 100 | Quality Level 100 |
| grade anhydrous | grade - | grade - | grade - |
| density 4.46 g/mL at 25 °C (lit.) | density 2.383 g/mL at 25 °C (lit.) | density 2.383 g/mL at 25 °C (lit.) | density - |
| impurities ≤1500.0 ppm Trace Rare Earth Analysis | impurities ≤100.0 ppm Trace Rare Earth Analysis | impurities - | impurities ≤1500.0 ppm Trace Rare Earth Analysis |
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The rare earth elements impact nearly everyone in the world. All of the people living in advanced technological countries and almost all those living in third world countries utilize the rare earths in their everyday living—the car that one drives (gasoline is refined from oil using rare earth catalysts and catalytic converters reduce the polluting emissions from the automotive exhaust), watching the news on TV (the red and green colors in TV screens), the telephones and computers we use to communicate (the permanent magnets in speakers and disc drives), just to name a few examples.
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