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.
E Width. An E width shoe is considered a wide for men and extra wide for women. Measuring at the bottom of the ball of the foot, an E width stretches between 3.2 and 5.2 inches, depending on foot size. For men, a size 10E is 4.2 inches across, while a size 14E is 4.7 inches across.