रोडियम
- REDIRECTsaancha:Infobox element
rodiyam (aangrezi:Rhodium) avart sarani ka ek tatv hai. rodiyam ka sanket 'Rh', paramanu bhar 102.9, paramanu sankhya 45 hai. bulaistan ne 1804 ee. mean pahale pahal isaka pata lagaya tha. yah sada plaitinam khanijoan ke sath paya jata hai, par unamean isaki matra kam hoti hai.
plaitinam khanijoan ko aikva rejiya ke sath upacharit karane se aausmiyam, iridiyam aur rootheniyam aviley rah jate haian, par adhikaansh rodiyam plaitinam ke sath nikal jata hai. amoniyam kloraid ke sath kriya se plaitinam avakshipt ho jata hai. avashesh drav mean raddi lohe ko dalane se any dhatuean nikshipt hoti hai. nikshep ka phir potaishiyam baisalphet ke sath upachar kar, jal ke nishkarshan se tatha pun: kristalan se rodiyam ka shuddh lavan prapt hota hai.
sthool roop mean rodiyam alp nila-shvet rang ka hota hai. isaka ghanatv pray: 12.1 hai. 1840° sean. par yah pighalata hai aur isase kuchh ooanche tap par vashpibhoot hota hai. vayu mean garam karane se isaka bahy tal aauksikrit ho, nile aauksaid ka avaran banata hai. yah amloan athava aikva rejiya mean aviley hota hai, par saandr salphyoorik aml se akraant hota hai. any dhatuoan, visheshat: sis, ke sath jo mishradhatu banati hai vah prabal amlo mean viley hoti hai.
rodiyam ke char aauksaid jnat hai. inamean ek kala choorn hai, jo rodiyam haidraksaid ko garam karane se prapt hota hai aur kuchh mahatv ka hai. isake tin kloraid prapt hue haian. kshariy kloraidoan ke sath isake kloraid yugm lavan banate haian. haidr aauksaid par tanu salphyoorik aml ke prabhav se rodiyam salphet banata hai, jo yugm lavan banata hai. amoniya ke sath rodiyam anek yaugik, jaise roziyo, parapuriyo aur lootiyo banata hai, jo tadanukool kobalt ke lavanoan se samanata rakhate haian.
rodiyam ke lavan alp matra mean drav svarn ke nirman mean prayukt hote haian. choo diyoan ke nirman mean drav-svarn upayog mean ata hai. plaitinam ke sath rodiyam-plaitinam mishradhatu banata hai, jisaka upayog uchch tap mapane ke lie tharmokapul ke nirman mean hota 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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