Example 1. The following spreadsheet uses the Excel Char function to return the character associated with different supplied character set numbers. Note that these results are from the Ansi character set (used on the Windows operating system).
Potassium tellurite agar is selective for the growth of Staphylococci and is somewhat selective for the growth of Corynebacteria. Staphylococci and Corynebacteria reduce the potassium tellurite in the agar, which makes the colonies grow black.
Potassium chloride (potash) is the most common potassium source used in agriculture. Potash is known as Muriate of Potash (MOP) with an analysis of 0-0-60. The chemical formula is KCl.