Help needed with soldering SPI flash (MX25L8006E)
All soldering profiles are high temperatures. A typical reflow profile will peak at about 210C (leaded) or 250C (lead free). There is no guidance on hand soldering (the usual guidance is 300C, 10 to 30 seconds).

The maximum rating in the datasheet is not the soldering profile; it is the maximum temperature where normal operation is guaranteed. Note that the storage temperature (not in use) is -65C to +150C.

There is no guidance in the datasheet for the specifics of the reflow profile either. I searched the manufacturers site for soldering guidance and there was no results.

You do not state which package you have (there are 5) as some packages are more amenable to removal with a good chance of not destroying the device than others.

So you do not need to worry about the 85C; what you do need to worry about is whether hand soldering is appropriate.