The reason this happens is that salt is hygroscopic. Hygroscopic means that salt absorbs water vapor from the surrounding air. Eventually, the salt attracts enough water vapor that the gas changes into liquid, and the salt partially dissolves and starts to clump together. To combat this tendency, manufacturers put additives in salt that keep it from liquefying.
Itchy Red Bumps on Chest and Back bumps on the back. Bumps are common on any part of the body. They could appear as a result of an allergic reaction, a disease or skin disorder. These may be caused by bacterial, viral or fungal infections. Some of these bumps may be localized on a certain part of the body or spread all over. Itchy red bumps on chest and back are common.
Bumps on the veins can be referred to as superficial thrombophlebitis, according to MedlinePlus from the National Institutes of Health. These bumps can occur on a person's arm or any other part of the body where the veins are close to the skin. They range from simple inflation of the vein to a dangerous blood clot. Keep Learning.