|CAS Number:||21908-53-2 labeled|
|Appearance:||Occurs in two forms: bright red, or orange-red, heavy, odorless powder, yellow when finely powdered; or yellow to orange yellow, becomes red on heating and yellow again on cooling. More finely divided and more reactive than red form.|
|Category:||Metal Isotopes Alphabetical Listing|
Keep in dark. Store in closed container in a cool, dry, well-ventilated, low fire-risk area. Protect container from physical damage.
Hazard Class: 6.1
UN Number: UN1641