cobalt pigment

Residues of (ME1q) (lumped, brow-black), (ME7) (greenish tan), and (ME106) (light pink) treated with 2 mL HAc each.

* (ME106) yielded a clear light pink liq + pink ppt.

* (ME7) yielded very light tan liq + tan ppt.

* (ME1q) yielded very light pink clear liq + gray brown ppt. 

Added all three (liqs and ppts) to acidic residue flask (MF0).

Added 2 mL HCit sol to (ME109).  No change.

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