Changing black inks. You can set the change of black ink to automatic, or you can manually switch between Matte (Mk) and Photo (Pk) inks. In the past this was a distinct problem with Epson printers if, like me, you used both matte (art) papers and glossy papers.
Submit. Â· just now. Report Abuse. Sodium iodide is a polar compound and polar compounds are soluble in water because of water s polarity.So sodium iodide is soluble in water. Imran Â· 7 months ago. Thumbs up. 2.
Iodine solution (IKI) reacts with starch to produce a dark purple or black color. KI Reagent: Iodine is not very soluble in water, therefore the iodine reagent is made by dissolving iodine in water in the presence of potassium iodide. This makes a linear triiodide ion complex which is soluble. The triiodide ion slips into the coil of the starch causing an intense blue-black color.