Salt comes in all colors, shapes and sizes; as well as pure white, salt may be pink, grey, black or green. Salt truly is a rainbow-hued rock. Here’s a guide to many of the salt varieties available. You might also enjoy Pink Himalayan Salt: 5 Reasons to Ditch Regular Table Salt.

They are transparent and cleave into perfect cubes when struck with a hard object. Salt varies in color from colorless when pure, to white, gray or brownish, which is typical of rock salt (halite). Chemically, salt is 60.663% elemental chlorine (Cl) and 39.337% sodium (Na).

black

The chemical formula is NaCl. Pure sodium chloride is colorless, but if it contains impurities, it may take on other colors. For example, it may be purple or blue, yellow or pink.

Why is Sodium Chloride White? [closed]

Sodium chloride

Potassium chloride (KCl) is a water-soluble compound that is generally used to prevent or treat severe potassium loss (Hypokalemia) or severe potassium loss of various etiologies.

Water

Potassium nitrate is one of several nitrogen-containing compounds collectively referred to as saltpetre (or saltpeter in North America). Major uses of potassium nitrate are in fertilizers, tree stump removal, rocket propellants and fireworks. It is one of the major constituents of gunpowder (black powder).

Potassium chlorate (KClO3) is a strong oxidizing agent that has a wide variety of uses. It is or has been a component of explosives, fireworks, safety matches, and disinfectants. As a high school or college chemistry student, you may have used it to generate oxygen in the lab.

* Breathing Potassium Chlorate can irritate the nose, throat and lungs causing sneezing, coughing and sore throat. * High levels can interfere with the ability of the blood to carry oxygen causing headache, weakness, dizziness and a blue color to the skin (methemoglobinemia).

You can buy it, but it’s easy to make potassium chlorate at home using ordinary household bleach (sodium hypochlorite) and salt substitute (potassium chloride).