HYDRATES - Truman State University

desiccant and absorbs the moisture. Other chemicals, such as cobalt chloride, are used as humidity indicators, changing colors according to hydration. For instance, the copper sulfate used earlier in the semester was stated to be CuSO 4, but it actually had absorbed 5 moles of water for every 1 mole of CuSO 4 and should have been

  Hydrates, Desiccant

Handling, Packing, Shipping and Use of Moisture, Reflow ...

singly by local ambient heating, i.e., ‘‘hot air rework.’’ See Clause 6. 1.3.3 Socketed Devices This standard does not apply to SMD packages that are socketed and not exposed to solder reflow temperatures during either bulk reflow or rework of adjacent devices.