Limestone chemical formula

Calcium oxide chemical formula

Calcium Hydroxide is a white powder or colourless crystal with a chemical formulation of Ca(OH)2. It is obtained when Calcium Oxide is mixed with water. Calcium Hydroxide has a number of synonyms including slaked lime, pickling lime, builder’s lime, hydrated lime. It is also known as slack lime or cal.

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Uses of Calcium Hydroxide

Calcium Hydroxide has a wide number of uses. For example, it is used in water treatment plants for treating sewage and it is also used to raise the pH of water where naturally occurring acidic water may damage pipe work. Calcium Hydroxide is widely used in the paper manufacturing industry, as a component in the Kraft process of manufacture.

Calcium Hydroxide is a widely available and inexpensive substance and its uses range from whitewash and plaster, to petrochemicals, brake pads, pesticides and as an active ingredient in hair removal creams.

Calcium Hydroxide is also widely used in food manufacture and preparation including the preparation of pickles and relishes, to process water for the soft drinks industry, in the sugar industry where it is used to separate sugar from sugar cane, to fortify fruit drinks and cordials, and as a Calcium supplement in baby milk.

Native Americans have been using Calcium Hydroxide in cooking for hundreds of years, where it is known as ‘cal’. It is used to aid digestion, to increase absorption of certain substances and to enhance the effects of various naturally occurring stimulants enjoyed by Native American tribes people.

Safety Hazards

Calcium Hydroxide presents a number of safety hazards. It can cause irritation to the respirations tract resulting in coughing and shortness of breath. It is a gastric irritant and ingestion can cause severe pain, vomiting, diarrhoea and eventually collapse. Calcium Hydroxide is corrosive to skin and can cause severe burns and blistering. Calcium Hydroxide is corrosive to the eyes, causing severe pain and irritation, with the possible result of causing blindness. Prolonged skin exposure can produce severe irritation and dermatitis. Persons with pre-existing skin conditions or respiratory conditions are especially susceptible to the effects of Calcium Hydroxide.

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