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 young child, 24 to 36 months old, grows approximately one-half a foot size every four months, and children over 3 years of age experience increases of one-half a foot size every four to six months. Seventy percent of children wear shoes with D and E widths. Most boys wear E width and most girls wear D width. A tie-fastened shoe can accommodate most widths. You should examine the depth of the shoe to make sure the top of the shoe doesn't press on the toes or the toenails. Look for shoes with rounded toe boxes to give the toes more room for movement.