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.
The width of a shoe is typically measured in letters (AAA, AA, A, B, C, D, E, EE, EEE, EEEE) and refers to the width of the shoe last as measured at the ball of the foot. Widths are defined in increments of an eighth (1/8) of an inch.