Calcium bromide
Calcium bromide is an inorganic compound with the chemical formula CaBr₂. It is a white powder that is highly soluble in water and is used in various applications, including as a component in drilling fluids and in medicine.
Structure and Properties[edit | edit source]
Calcium bromide is composed of calcium cations (Ca²⁺) and bromide anions (Br⁻). It crystallizes in a structure similar to that of calcium chloride, with each calcium ion surrounded by six bromide ions in an octahedral geometry.
The compound is highly soluble in water, forming a colorless solution. It has a high melting point of 730 °C and a boiling point of 1,935 °C. Calcium bromide is hygroscopic, meaning it can absorb moisture from the air.
Applications[edit | edit source]
Oil and Gas Industry[edit | edit source]
Calcium bromide is commonly used in the oil and gas industry as a component of drilling fluids. It is used to control wellbore pressures and stabilize the borehole during drilling operations. Its high density and solubility make it an effective brine for these purposes.
Medical Uses[edit | edit source]
In medicine, calcium bromide has been used as a sedative and hypnotic. It was historically used to treat conditions such as epilepsy and insomnia, although its use has declined with the development of more modern pharmaceuticals.
Other Uses[edit | edit source]
Calcium bromide is also used in the preparation of photographic chemicals and as a flame retardant. It can be used in the synthesis of other bromine compounds.
Safety and Handling[edit | edit source]
Calcium bromide should be handled with care, as it can cause irritation to the skin, eyes, and respiratory tract. Proper protective equipment, such as gloves and goggles, should be used when handling the compound.
Also see[edit | edit source]
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