Being the product of a neutralization reaction between an acid and a base, sodium chloride is neutral, with a pH of seven. Sodium chloride is an ionic compound with the chemical formula NaCl. Continue Reading.
A D-width is considered a medium for men and a wide for women. It measures between 3 and 5 inches across the bottom of the ball of the foot, depending on your shoe size. For instance, in men's footwear, a size 10D is 4 inches across, while a size 14D is 4.5 inches across.
Actually the D refers to the width. M is medium width and D is for wide width. I know this for a fact because I can only buy shoes with a wide width in order for them to fit properly. Report abuse. 23 of 27 people think this post adds to the discussion.