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![Physical Properties
Melting point : 711°C
Boiling point : 1158°C
Physical state at room temperature: crystalline
solid
Colour : white
Density : 3.72g/cm³
Solubility in water : 102g/100mL
Electrical conductivity : poor in solid , good in
liquid
[ ]Br
x
X
[ ]Mg Br[ ]
X
XX
X
X
X
X
X
X
Ionic
Compound](https://image.slidesharecdn.com/magnesiumbromide-180306053836/85/Magnesium-bromide-7-320.jpg)
Magnesium bromide
- 1.
- 2. What chemical canbe added to a hygroscopic substance to prevent it from absorbing any water? There's no way to modify most hygroscopic substances to be not hygroscopic without fundamentally changing their character. In industry we add desiccants as a sort of sacrificial hygroscopic substance, we seal against water impingement, and we will heat to drive off water. The one limited case I can think of is for a hydrophilic polymeric substance with an expandable matrix (obviously not black powder), where we could reach a point where no further water could be absorbed by crosslinking the polymer to a greater degree. However, this is something that occurs during synthesis, not after, it isn't a matter of a single chemical, and for that matter greater amounts of crosslinks modify the physical and chemical properties of the polymer.
- 3. Magnesium bromide(MgBr2) is a chemical compound of magnesium and bromine that is white and deliquescent. Synthesis Magnesium bromide can be synthesized by reacting hydro bromic acid with magnesium oxide and crystallizing the product. It can also be made by reacting magnesium carbonate and hydro bromic acid, and collecting the solid left after evaporation.
- 4. Properties Chemical formula MgBr2(anhydrous) MgBr2·6H2O (hexahydrate) Molar mass 184.113 g/mol (anhydrous) 292.204 g/mol (hexahydrate) Appearance white hygroscopic hexagonalcrystals (anhydrous) colorless monoclinic crystals (hexahydrate) Density 3.72 g/cm 3 (anhydrous) 2.07 g/cm 3 (hexahydrate) Melting point 711 °C (1,312 °F; 984 K) 172.4 °C, decomposes (hexahydrate) Boiling point 1,250 °C (2,280 °F; 1,520 K) Solubility in water 102 g/100 mL (anhydrous) 316 g/100 mL (0 °C, hexahydrate) Solubility ethanol: 6.9 g/100 mL methanol: 21.8 g/100 mL
- 5. if youdissolve the salt magnesium bromide (MgBr2) in water, the magnesium atoms and the bromine atoms dissociate from each other as positively-charged magnesium ions (Mg2+) and negatively charged bromide ions (Br1-). When water molecules surround the magnesium ions, what side of each water molecule will be directed towards them, the hydrogen or oxygen side? The oxygen side will be directed towards the magnesium ions because the magnesium ions have a positive charge that will attract the negatively charged side of the water molecule.
- 6. Anhydrous Magnesiumbromide is very hygroscopic and forms a series of crystalline hydrate Mgbr2.nH2o. It is water-soluble and somewhat soluble in alcohol
- 7. Physical Properties Meltingpoint : 711°C Boiling point : 1158°C Physical state at room temperature: crystalline solid Colour : white Density : 3.72g/cm³ Solubility in water : 102g/100mL Electrical conductivity : poor in solid , good in liquid [ ]Br x X [ ]Mg Br[ ] X XX X X X X X X Ionic Compound
- 8. Interesting or specialcharacteristics of MgBr2 ☻ Magnesium bromide (MgBr2) is water soluble and somewhat soluble in alcohol. ☻ It can be found naturally in small amounts in some minerals such as: bischofite and carnallite, and in sea water, such as that of the Dead Sea. ☻ Magnesium bromide can be synthesized by reacting hydrobromic acid with magnesium oxide and crystallizing the product. It can also be made by reacting magnesium carbonate and hydrobromic acid, and collecting the solid left after evaporation. ☻ An alternative route is adding magnesium to a solution of liquid ammonia and sodium bromide, then evaporating the solvent off and collecting the precipitate. Chemical Properties Potential Hazard : Irritant
- 9. Magnesium Bromide Hexahydrate CompoundFormula Br2H12MgO6 Molecular Weight 292.204 g/mol Appearance Colorless Monoclinic Crystals Melting Point 165 °C (329 °F) Boiling Point N/A Density 2 g/cm3 Solubility in H2O Very Soluble in H2O; Soluble in EtOH Exact Mass N/A Monoisotopic Mass 289.885101 Charge N/A
- 10. Magnesium Bromide Compound FormulaBr2Mg Molecular Weight 184.11 Appearance White light brown solid Melting Point 711° C (1,312° F) Boiling Point N/A Density 3.72 g/cm3 Exact Mass 183.819671 Monoisotopic Mass 181.821717
- 11. • Magnesium Bromideis generally immediately available in most volumes. Ultra high purity, high purity, submicron and nano powder forms may be considered. Hydrate or anhydrous forms may be purchased. Most metal bromide compounds are water soluble for uses in water treatment, chemical analysis and in ultra high purity for certain crystal growth applications. Bromide in an aqueous solution can be detected by adding carbon disulfide (CS2) and chlorine • MgBr2 A deliquescent salt in the form of colorless hexagonal crystals that are soluble in water and absolute alcohol.
- 12. Rheological and calorimetricstudy of alkyltrimethylammonium bromide-sodium salicylate wormlike micelles in aqueous binary systems. • It is known that additives like glycerol and sucrose lead to the swelling of aqueous bilayer Lα phases. The swelling of the Lα phases can be explained by the increase of the refractive index of the mixed solvent, which lowers the van der Waals attraction between the bilayers. Afterwards, the undulation forces between the bilayers can push them apart. This hypothesis was previously extended to wormlike micelles (WLM) of cetyltrimethylammonium bromide (CTAB) and sodium salicylate (NaSal). These types of self-assembly structures have viscoelastic properties, and the zero shear viscosity of these solutions is dependent on the molar ratio NaSal/CTAB, • XPERIMENTS: Herein, we present the zero-shear viscosity diagrams of NaSal and CTAB with glycerol, sucrose, dimethyl sulfoxide, 1,3-butanediol and urea combined with water. Additionally, isothermal titration calorimetry was used to obtain the variations of enthalpy for formation of WLM of TTAB and NaSal in mixtures of water and such additives.
- 13. • Bromides arechemical compounds containing bromide, the anion of bromine with a -1 charge. The bromide form of any metal is generally soluble in water, and thus bromides are frequently used as soluble sources of the metals they contain. • Neodymium Bromide (NdBr)Bromides are often used when the chloride or nitrate form of a given element is hazardous. This has become increasingly the case with the advent of new green chemistry and hazardous materials legislation such as the REACH program in the European Union. For example, bromides are now being used in many catalytic, electronic, coating and biomedical applications in replacement of other soluble forms for this reason.
- 14. Drying agents(also called desiccants) come in various forms and have found widespread use in the foods, pharmaceuticals, packing, electronics and many manufacturing industries. A desiccant is a hygroscopic substance that induces or sustains a state of dryness in its vicinity. Ideally, it is chemically stable and chemically inert (i.e., silica). Unfortunately, this is not always the case in the chemistry lab because the drying agent comes into direct contact with the solvent and the chemical. Commonly used drying agents in organic laboratories are calcium chloride (CaCl2), sodium sulfate (Na2SO4) calcium sulfate (CaSO4, also known as Drierite) and magnesium sulfate (MgSO4), all in their anhydrous form. How do they work? All four of them readily form hydrates at low temperatures according to
- 15. Hygroscopy and Deliquescence Hygroscopic and deliquescent materials are both able to absorb moisture from the air. However, hygroscopy and deliquescence don't mean precisely the same thing. Hygroscopic materials absorb moisture, but deliquescent materials absorb moisture to the extent the substance dissolves in water. Deliquescence may be considered an extreme form of hygroscopy. A hygroscopic material will become damp and may stick to itself or become cakey, while a deliquescent material will liquefy.
- 16. Mixing hopperis a special equipment to prepare suitable drilling fluid by adding chemicals and then changing the fluid density, viscosity. Mud mixing hopper has two types, one is cyclone mixing hopper which is also called swirl mixing hopper with features such as high mixing efficiency and fast feeding speed. And the other is jet mixing hopper that has high mixing efficiency and high pressure at outlet, especially working with shear pump.
- 17. To behygroscopic means a substance is able to absorb or adsorb water from its surroundings. Typically, this occurs at or near ordinary room temperature. Most hygroscopic materials are salts, When water vapor is absorbed the water molecules are taken into the molecules of the substance, often resulting in physical changes, such as increased volume. Color, boiling point, temperature, and viscosity may also change. When water vapor is adsorbed, the water molecules remain on the surface of the material.
- 18. Zinc Bromide Compound FormulaBr2Zn Molecular Weight 225.19 Appearance White Powder Melting Point 394° C (741.2° F) Boiling Point 697° C (1,287° F) Density N/A Exact Mass N/A Monoisotopic Mass 221.765808 Charge N/A
- 19. Zinc/Calcium Bromide • • Zinc/calciumbromide is a two salt (CaBr2 ZnBr2) clear, solids free brine fluid of 19.2 lbs/gal density used in completion fluids. It is used in completion fluids and offers the following features and benefits: • It is non-damaging to the formation, • It is thermally and chemically stable, and • It can be blended with other solutions containing bromides and chlorides. • Zinc/calcium bromide can be used with other bromides and chlorides to prepare non- damaging fluids with densities ranging from 15.1 to 19.2 lbs/gal
- 20. Zinc Bromide • ZincBromide is a clear, solid-free brine fluid with minimum density of 19.2 lbs/gal. It is used in completion fluids and offers the following features and benefits:It is non-damaging to the formation, • It is thermally and chemically stable, and • It can be blended with other solutions containing bromides and chlorides. • Zinc Bromide can be used with other bromides and chlorides to prepare non- damaging fluids with densities ranging from 15.1 lbs/gal to 19.2 lbs/gal.
- 21. Calcium Bromide Compound FormulaBr2Ca Molecular Weight 199.89 Appearance -10 mesh beads Melting Point 730° C (1,346° F) Boiling Point 1,935° C (3,515° F) Density 3.353 g/cm3 Exact Mass 199.79722 Monoisotopic Mass 197.799266 Calcium Bromide Properties (Theoretical)
- 22. Manganese Bromide Compound FormulaBr2Mn Molecular Weight 214.75 Appearance Powder or chunks Melting Point 698 °C (1288 °F) Boiling Point 1027 °C (1881 °F) Density 4.385 g/cm3 Exact Mass 214.772678 Monoisotopic Mass 212.774725
- 23. Calcium Bromide •Calcium bromide(CaBr2) is a single salt clear brine fluid of 14.2 lbs/gal density. Calcium bromide has the following features/benefits:It is non-damaging to the formation, •It is thermally and chemically stable, •It can be blended with other solutions containing bromides and chlorides, and •It contains 52 percent by weight calcium bromide in solution. Calcium bromide can be used with calcium chloride brines and dry calcium chloride to formulate non-damaging fluids of densities from 11.7 lbs/gal to 15.1 lbs/gal.
- 24. Zinc Phosphate Compound FormulaO8P2Zn3 Molecular Weight 386.08 Appearance White powder and/or chunks Melting Point 900 °C Boiling Point °C Density 3.998 g/cm3 Exact Mass 383.69117 Monoisotopic Mass 381.69428