What is the Calcium bromide?

Calcium bromide is white powder, while it's Molecular Formula is CaBr2. white powder Calcium bromide has a number of useful applications.Used in the oil and gas fields, the compound is atrue working example. At almost every stage of the oiland gas extraction process, calcium bromide has foundextensive usage. Stability, dependability and ease ofuse distinguish calcium bromide in the drilling process.There, it is used in “drilling muds” worldwide.

What is the CAS number for Calcium bromide?

The CAS number of Calcium bromide is 7789-41-5.

What is Calcium bromide (7789-41-5) used for?

Calcium bromide has the chemical formula CaBr2. Itwas first prepared by Pfeiffer, Klossmann and Angernin 1924. It is a deliquescent salt that has the form ofcolorless hexagonal crystals that are soluble in water and absolute alcohol. Its molecular weight is 199.90 g/mol for the anhydride. When strongly heated in air,calcium bromide will produce CaO (lime) and Br2. Itis generally obtained as the dihydrate, CaBr2·2H2O,in the form of a white crystalline powder. A hexahydrate,CaBr2·6H2O, is also known. Anhydrous calciumbromide is obtained by dehydration (250°C, vacuum)of the dihydrate CaBr2·2H2O. On contact with hotsurfaces or flames, CaBr2 decomposes formingbromine as a toxic and corrosive fume. It also reactswith strong acids to produce corrosive fumes ofbromine.In its solid anhydrous state, it is a white powder.CaBr2 can be found in drilling muds, neuroses medication,freezing mixtures, food preservatives, photographyand fire retardants. The anhydride has a melting pointof 730°C and a boiling point of 810°C where it decomposes.Its density is 3.41 g/cm3. It is moderately solublein water at 142 g/100 ml of water.InChI:InChI=1/2BrH.Ca/h2*1H;/q;;+2/p-2

Product classification

7789-41-5

Product Name：Calcium bromide
Molecular Formula：CaBr₂
Purity：99%
Molecular Weight：199.886

Inquiry

Product Details;

CasNo： 7789-41-5

Molecular Formula： CaBr₂

Appearance： white powder

Buy Reliable Quality Top Purity Calcium bromide 7789-41-5 Competitive Price

Molecular Formula:CaBr2
Molecular Weight:199.886
Appearance/Colour:white powder
Vapor Pressure:0Pa at 25℃
Melting Point:730 °C
Boiling Point:806-812°C
Flash Point:806-812°C
PSA：0.00000
Density:3.353 g/cm³
LogP:-5.99200

Calcium bromide(Cas 7789-41-5) Usage

Uses	Calcium bromide has a molecular weight of 199.90 g/mol for the anhydride and a specific gravity of 3.41 g/cm3. In its solid anhydrous state, it is a white powder with a melting point of 730°C and a boiling point of 810°C, where it decomposes. When heated in air, it produces lime (CaO) and bromine (Br2). The compound is commonly found as the dihydrate (CaBr2·2H2O), which appears as a white crystalline powder. There is also a hexahydrate form (CaBr2·6H2O).
Description	Calcium bromide (CaBr2) is a versatile chemical compound with various applications. Primarily known for its use as a developer in photographic film and paper, it also serves as a dehydrating agent, food preservative, and fire retardant. First prepared in 1924, it exists as a deliquescent salt, forming colorless hexagonal crystals that are soluble in water and absolute alcohol. The anhydrous form, obtained through dehydration, is a white powder.
Chemical Properties	Calciumbromide, CaBr2, is a colorless crystalline solid with a melting point of 765°C. It is deliquescent and is soluble in water and absolute alcohol. Calcium bromide is used in medicine. Calcium bromide(hydrated), CaBr2·3H20, has a meiting point of 80.5℃.
Preparation	CaBr2·2H2O has a melting point of 38°C where it dissolves in its own waters of hydration. Its density is 2.290 g/cm3. It can be prepared by reaction in solution with HBr on the carbonate: CaCO3 (solid)＋HBr (liq)→CaBr2 (liq)＋ CO2 (gas) An improved method for producing calcium bromide has been developed by reacting hydrogen bromide with calcium hydroxide in the presence of water.

InChI:InChI=1/2BrH.Ca/h2*1H;/q;;+2/p-2

7789-41-5 Relevant articles

The melting point adjustment of calcium chloride hexahydrate by addition of potassium chloride or calcium bromide hexahydrate

H Feilchenfeld, J Fuchs, F Kahana, S Sarig

, Sol. Energy;(United Kingdom), 1985

This can be achieved by addition of a second salt. This second salt may or may not form solid solutions with the main component. In this paper we deal with an example for each case. CCH forms solid solutions with calcium bromide hexahydrate, but not with potassium chloride. The influence of these two salts on the melting behavior of CCH is discussed.

Differential thermal analysis under quasi-isothermal, quasi-isobaric conditions (Q-DTA) Part II. Water evaporation and the decomposition mechanism of compounds with structural and crystal water

Paulik,Bessenyey-Paulik,Walther-Paulik

, p. 75 - 82 (2004)

It is already a generally accepted opini...

Ammonia Absorption on Alkaline Earth Halides as Ammonia Separation and Storage Procedure

Liu, Chun Yi,Aika, Ken-Ichi

, p. 123 - 131 (2007/10/03)

For the low pressure ammonia synthesis (...

7789-41-5 Process route

: calcium bromide * 3 benzyl alcohol

: 7789-41-5
calcium bromide

: 100-51-6,185532-71-2
benzyl alcohol

Conditions

Conditions	Yield
In not given; decomposition at touching the satd. solution at 32°C in its components;;

: 7726-95-6
bromine

: 75-20-7
calcium carbide

: 7789-41-5
calcium bromide

Conditions

Conditions	Yield
In neat (no solvent); passing of a mixture of Br2 and air over CaC2 forms CaBr2 at heating;;
In neat (no solvent); byproducts: C2Br6; powdered CaC2 (63%) and dry Br2 in closed tube, 5 month at ambient temperature;;	>99
In neat (no solvent); byproducts: C2Br6; touchment of powdered CaC2 and liquid Br2 for some months at normal temperature under formation of CaBr2 and C2Br6;; not isolated;;
In neat (no solvent); byproducts: C; formation of CaBr2 and C in a closed tube at 100°C;;
In neat (no solvent); byproducts: C; longer heating on boiling water bath;;
In neat (no solvent); passing of a mixture of Br2 and air over CaC2 forms no CaBr2 in coldness;;	0%
In neat (no solvent); passing of a mixture of Br2 and air over CaC2 forms CaBr2 at heating;;
In neat (no solvent); byproducts: C2Br6; touchment of powdered CaC2 and liquid Br2 for some months at normal temperature under formation of CaBr2 and C2Br6;; not isolated;;
In neat (no solvent); byproducts: C; formation of CaBr2 and C in a closed tube at 100°C;;
In neat (no solvent); passing of a mixture of Br2 and air over CaC2 forms no CaBr2 in coldness;;	0%
In neat (no solvent); reaction at 350°C;;