Quantcast Chemical Reactivity cont'd - doe-hdbk-1113-98_reaffirm_2005_040052

 

Click here to make tpub.com your Home Page

Page Title: Chemical Reactivity cont'd
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home

   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Back
Chemical Reactivity - doe-hdbk-1113-98_reaffirm_2005_040051
Up
Radiological Safety Trainign for Uranium Facilities
Next
Chemical Reactivity cont'd - doe-hdbk-1113-98_reaffirm_2005_040053


DOE-HDBK-1113-98
Module 101 Properties of Uranium
Lesson Plan
Instructor's Notes
The lower oxidation states, UO2 and U3O8, tend to
Show OT-11
be dark brown or black. The higher oxidation states,
UO3 and UO4, are generally orange or yellow,
especially in solution or if water or crystallization
are present (e.g., UO42H2O). Furthermore, the
higher oxides usually flake of more easily and are
usually more soluble in water. Being flaky, they are
more easily inhaled. Being more soluble, they are
more easily absorbed into the body.
Uranyl compounds, such as uranyl nitrate, or
UO2(NO3)2, are chemical forms of uranium that are
often found in solution with water. They are
generally yellow in color and are used in criticality
experiments.
Show OT-10 again
Uranium reacts readily with air and water. For
example, when uranium is machined, small chips
catch fire from the heat of the machining process.
Shavings placed in water react to produce hydrogen
gas. The surfaces quickly oxidize to a hard black
coating that is at first protective; however, under
adverse conditions, it corrodes and flakes.
Uranium also reacts with hydrogen or tritium gas to
form uranium hydride (UH3). Uranium "beds" are
commonly used to store tritium.
16


Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc.