How do I get out

Hint 1 of 9:

You need to go back out the door you came in.

Hint 2 of 9:

Notice the concrete patch on the wall to the right of the door.

Hint 3 of 9:

You must find some way of removing the concrete.

Hint 4 of 9:

MOVE CLOTHES on right side, then GET ROD for a crowbar.

Hint 5 of 9:

USE BAR when standing next to the patch (position is critical).

Hint 6 of 9:

Now you need something to dissolve the metal.

Hint 7 of 9:

Did you get the H2CL (hydrochloric acid) from the Colonist camp ?