कोबाल्ट
- REDIRECTsaancha:Infobox element
kobalt (aangrezi:cobalt) ek rasayanik tatv hai. kobalt ka sanket Co, paramanu sankhya 27, paramanu bhar 59.94 hai. prachin kal ke rangin kaanch ke vishleshan se pata lagata hai ki kobalt ke khanij ka upayog tab jnat tha. aigrikola ne 1530 ee. mean kuchh khanijoan aur ayaskoan ke lie kobalt shabd ka prayog kiya tha. 1742 ee. mean braant ne pahale pahal ashuddh roop mean is dhatu ko prapt kiya tha. unhoanne isake chuanbakiy gun aur ooanche dravanaank ka bhi pata lagaya tha. kuchh khanijoan ke pighalane se nile rang ke banane ka karan yahi tatv tha. is dhatu ka praranbhik adhyayan bairgamain ne kiya. kobalt any dhatuoan ke khanijoan, visheshat: lohe aur sise ke khanijoan ke sath mila hua paya jata hai.
khanijoan se dhatu prapt karane ki vidhi khanijoan ki prakriti aur unamean upasthit dhatuoan par nirbhar karati hai. dhatu karm vastut: kuchh pechida hota hai. is khanij ko dalakar bhatthiyoan mean bhoonate haian. isase vashpashil aansh bahut kuchh nikal jata hai. phir namak ke sath uttapt karate haian, jisase chaandi aviley silvar kloraid mean parinat ho jati haian. jalaviley nishkarsh mean kobalt ke atirikt nikal aur taanba rahate haian. lauh dhatu ke upachar se taanbe ko avakshipt karake alag kar lete haian. avashesh ko ab haidroklorik aml mean ghulate haian. vilayan ko choona patthar se udasin banakar, lohe ko haidramksaid ke roop mean avakshipt kar lete haian. nisyand ko ab biranjak choone ke upachar se kobalt ka kale kobalt haidr aauksaid ke roop mean avakshep nikal jata hai aur nikal vilayan mean rah jata hai.
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tika tippani aur sandarbh
sanbandhit lekh
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| H | He | ||||||||||||||||||||||||||||||||||||||||
| Li | Be | B | C | N | O | F | Ne | ||||||||||||||||||||||||||||||||||
| Na | Mg | Al | Si | P | S | Cl | Ar | ||||||||||||||||||||||||||||||||||
| K | Ca | Sc | Ti | V | Cr | Mn | Fe | Co | Ni | Cu | Zn | Ga | Ge | As | Se | Br | Kr | ||||||||||||||||||||||||
| Rb | Sr | Y | Zr | Nb | Mo | Tc | Ru | Rh | Pd | Ag | Cd | In | Sn | Sb | Te | I | Xe | ||||||||||||||||||||||||
| Cs | Ba | La | Ce | Pr | Nd | Pm | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | Hf | Ta | W | Re | Os | Ir | Pt | Au | Hg | Tl | Pb | Bi | Po | At | Rn | ||||||||||
| Fr | Ra | Ac | Th | Pa | U | Np | Pu | Am | Cm | Bk | Cf | Es | Fm | Md | No | Lr | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Uut | Uuq | Uup | Lv | Uus | Uuo | ||||||||||
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