درخواست مطلب جامع " تهیه صنعتی برم "

enigma22

سلام
ازتون ممنون میشم اگر لطف کنید و مطلب نسبتا کامل و جامعی درمورد فرایند صنعتی تهیه عنصر برم برای قرار بدید . بسیار ضروری هست
مرسی

mohammad1365

enigma22 نوشته شده:سلام
ازتون ممنون میشم اگر لطف کنید و مطلب نسبتا کامل و جامعی درمورد فرایند صنعتی تهیه عنصر برم برای قرار بدید . بسیار ضروری هست
مرسی

سلام دوست عزيز
راستش من در مورد تهيه صنعتي برم مطلبي پيدا نكردم البته يك سري از سايتها هستند كه مقاله ارائه مي دهند اما بايد عضو شده و براي مقاله مورد نياز خود مبلغي را پرداخت كنيد. اما اگر خودت خواستي سرچ كني ميتوني اين جمله را سرچ كني
industrial preparation bromine

در متن زير توضيحاتي در مورد برم وجود دارد
در قسمت اول در مورد خواص فيزيكي برم توضيح داده شده است
در قسمت دوم در مورد خواص شيميايي برم توضيح داده شده است
در قسمت چهارم درمورد حالت طبيعي برم و در قسمت پنجم در مورد كاربرد هاي برم توضيح داده شده است

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:   is the element whose atomic number is 35. The bromine is represented by the symbol Br. The various properties of bromine are:
  PHYSICAL PROPERTIES OF BROMINE
  . Bromine exists in nature in liquid phase.
  . The density of bromine is 3.10 g/cm[SUP]3[/SUP]
  . The melting point of bromine is 265
  . The boiling point of bromine is 332
  . The heat of vaporization of bromine is 29 KJ/
  CHEMICAL PROPERTIES OF BROMINE:
  . Bromine is present in various oxidation states like 7, 5, 4, 3, 1 and -1.
  . The electro negativity of bromine is 2.96 in Pauling scale.
  . The ionization enthalpy of bromine is as such:
   ionization enthalpy: 1139 KJ/
   ionization enthalpy: 2103 KJ/
   ionization enthalpy: 3470 KJ/
  . Bromine is diamagnetic in nature.

  . The crystal structure of bromine is orthorhombic.
  Bromine Natural State   nature the bromine exists in the form of bromide salts. It is also present in the crustal rock in diffuse amount. The bromide salts are available in sea water. There is a need to follow some processes to get bromide salt from sea water. The concentration of bromide salt is very less compared to chloride. The economically recovery of bromine is from the bromide-rich wells. The dead sea waters are also the source of bromine. The bromine diatomic compound Br[SUB]2 [/SUB]that we are using in the reactions does not present naturally. There are very less number of organobromine compounds present in the nature. The organobromine compounds prepared from the below reaction:

C[SUB]2[/SUB]H[SUB]4[/SUB] + Br[SUB]2[/SUB] → CH[SUB]2[/SUB]BrCH[SUB]2[/SUB]      most abundant place of bromine in earth is in Columbia and Union.Both are present in United Stataes of America. There are two stables isotopes of bromine which are exists in nature. One is [SUP]79[/SUP]Br which is present in amount of around 50.69 %. The another isotope is [SUP]81[/SUP]Br which is present in 49.31%. Many of isotopes of bromine are fission products. The radioactive isotopes of bromine have very short life. The half life of neutron deficient [SUP]77[/SUP]Br is the longest life with 2.376 days. The bromine isotopes are also available in the form of metastable isomers.Stable [SUP]79[/SUP]Br exhibits a radioactive isomer , with a half life of 4.86 seconds. It decays by isomeric transition to the stable ground state.
is very soluble in with organic solvent alchohls and acetic acid. So, lots of bromine compounds are available in this form also. The bromine is also soluble in water. The formation of bromine compounds with metals is doen in the presence of water. The reaction of bromine with organic compounds uses dissociation reaction. In dissociation reaction there is a dissociation of diatomic molecule of bromine takes place.
[SUB]2[/SUB]

2 Br·
Uses of Bromine   The various uses of bromine are:
  . The use of bromine in the industry for the prepearation of various organobromine compounds.
  . Bromine compounds are used to polysters and epoxy resins.
  . It acts as an additive with gasolines.
  . It is used as a pesticide to fumigate soil.
  . It is used in the production of brominated vegetable oils.

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درخواست مطلب جامع " تهیه صنعتی برم "

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