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Calcium bromide

Calcium bromide Suppliers list
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Products Intro: Product Name:calcium dibromide
CAS:7789-41-5
Purity:Above 99% Package:1Kg/Bag;20USD
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Products Intro: CAS:7789-41-5
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Products Intro: Product Name:Calcium bromide
CAS:7789-41-5
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Products Intro: Product Name:Calcium bromide
CAS:7789-41-5
Purity:99% Package:1KG;10USD
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Products Intro: Product Name:Calcium bromide
CAS:7789-41-5
Purity:52% Package:1000KG;2144.2USD|200000KG;2144.2USD

Calcium bromide manufacturers

  • Calcium bromide
  • $10.00 / KG
  • 2021-11-08
  • CAS:7789-41-5
  • Min. Order: 1KG
  • Purity: 99.9%
  • Supply Ability: 100MT/Month
  • Calcium bromide
  • $1.00-490.00 / KG
  • 2021-10-21
  • CAS:7789-41-5
  • Min. Order: 0.5KG
  • Purity: >99%
  • Supply Ability: 20tons
  • calcium dibromide
  • $20.00 / Kg/Bag
  • 2021-09-07
  • CAS:7789-41-5
  • Min. Order: 1Kg/Bag
  • Purity: Above 99%
  • Supply Ability: 5000kg/month
Calcium bromide Basic information
Uses
Product Name:Calcium bromide
Synonyms:Calcium bromide anhydrousReagent grade, ≥ 99.5% (Assay);Calcium bromide solution;CALCIUM (II) BROMIDE;CALCIUM BROMIDE;CaBr2;Calcium bromide (CaBr2);calciumbromide(cabr2);calciumbromideanhydrous
CAS:7789-41-5
MF:Br2Ca
MW:199.89
EINECS:232-164-6
Product Categories:as dense aqueous solutions for drilling fluids;metal halide;Calcium Salts;CalciumMetal and Ceramic Science;Crystal Grade Inorganics;Inorganic Salts;Inorganics;Salts;Synthetic Reagents
Mol File:7789-41-5.mol
Calcium bromide Structure
Calcium bromide Chemical Properties
Melting point 730°C
Boiling point 806-812°C
density 3.353 g/mL at 25 °C (lit.)
Fp 806-812°C
form beads
Specific Gravity3.353
color White to off-white
Water Solubility Soluble in water, methanol, ethanol and acetone. Insoluble in dioxane, chloroform and ether.
Sensitive Hygroscopic
Merck 14,1654
Stability:hygroscopic
CAS DataBase Reference7789-41-5(CAS DataBase Reference)
NIST Chemistry ReferenceCalcium dibromide(7789-41-5)
EPA Substance Registry SystemCalcium bromide (CaBr2) (7789-41-5)
Safety Information
Hazard Codes Xi
Risk Statements 38-41
Safety Statements 22-24/25-39-26
WGK Germany 2
RTECS EV9328000
TSCA Yes
Hazardous Substances Data7789-41-5(Hazardous Substances Data)
MSDS Information
ProviderLanguage
Calcium bromide English
SigmaAldrich English
ALFA English
Calcium bromide Usage And Synthesis
UsesCalcium bromide (CaBr2) is used as a developer for photographic film and paper and as a dehydrating agent (drying agent), food preservative, and fire retardant.
DescriptionCalcium bromide has the chemical formula CaBr2. It was first prepared by Pfeiffer, Klossmann and Angern in 1924. It is a deliquescent salt that has the form of colorless 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. It is generally obtained as the dihydrate, CaBr2·2H2O, in the form of a white crystalline powder. A hexahydrate, CaBr2·6H2O, is also known. Anhydrous calcium bromide is obtained by dehydration (250°C, vacuum) of the dihydrate CaBr2·2H2O. On contact with hot surfaces or flames, CaBr2 decomposes forming bromine as a toxic and corrosive fume. It also reacts with strong acids to produce corrosive fumes of bromine.
In its solid anhydrous state, it is a white powder. CaBr2 can be found in drilling muds, neuroses medication, freezing mixtures, food preservatives, photography and fire retardants. The anhydride has a melting point of 730°C and a boiling point of 810°C where it decomposes. Its density is 3.41 g/cm3. It is moderately soluble in water at 142 g/100 ml of water.
Chemical PropertiesCalciumbromide, 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℃.
UsesIn photography for making dry plates and light-sensitive papers; manufacture of mineral waters, NH4Br, fire-extinguishing compositions.
UsesMade by the action of hydrobromic acid on calcium oxide and crystallization. The white granular crystals are soluble in water. Calcium bromide was used in making collodion emulsions, particularly for dye-sensitized plates.
UsesCalcium bromide has a number of useful applications. Used in the oil and gas fields, the compound is a true working example. At almost every stage of the oil and gas extraction process, calcium bromide has found extensive usage. Stability, dependability and ease of use distinguish calcium bromide in the drilling process. There, it is used in “drilling muds” worldwide.
PreparationCaBr2·2H2O 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.
Tag:Calcium bromide(7789-41-5) Related Product Information
Bromoacetyl bromide Palladium bromide Potassium bromide Sodium bromide CADMIUM BROMIDE TETRAHYDRATE 1-Bromohexane Benzyl bromide Bromoethane Calcium bromide Sodium bromate Methyl bromide Calcium chloride Calcium nitrate Calcium carbide Ethidium bromide Calcium carbonate ZINC BROMIDE/CALCIUM BROMIDE calcium bis(4-O-(beta-D-galactosyl)-]Dgluconate) - calcium bromide (1:1) ,CALCIUM BIS(4-O-(BETA-D-GALACTOPYRANOSYL)-D-GLUCONATE)--CALCIUM BROMIDE (1:1)