The result of Ca(OH)2 + H2O is calcium hydroxide. This compound comes in the form of a white powder or a colorless crystal and is a type of inorganic compound.
Calcium hydroxide is present in cement, industrial cleaners and solvents, slaked lime, limewater and certain types of hair straighteners and relaxers. It is possible for a person to experience calcium hydroxide poisoning with too much exposure. It can burn the skin and cause irritation. In some cases, it can result in holes in the skin. It may also affect the gastrointestinal tract, lungs, blood, heart, eyes, nose, ears and throat.