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ID number:382668
 
Evaluation:
Published: 31.01.2007.
Language: Latvian
Level: Secondary school
Literature: n/a
References: Not used
Extract

Broms
Broms ir ķīmiskais elements ar simbolu Br un atomskaitli 35. Broms ir halogēns. Bromam ir iespējamas oksidācijas pakāpes no -1 līdz +7.
Atommasa- 79,904 g/mol
Blīvums- 3119 kg/m3
Kušanas temperatūra- 265,8 K (-7,3°C
Vārīšanās temperatūra- 332 K (58,8°C)

Broma iegūšana.
Galvenie broma iegūšanas avoti ir jūras ūdens, ezeri un pazemes urbumi. Rūpnieciski Bromu iegūst no bromīdiem, iedarbojoties uz tiem ar hloru un atdala no šķīduma ar tvaika vai gaisa plūsmas palīdzību. …

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