Rhodium reacts nrog dab tsi?

Hlau rhodiumreacts ncaj qha nrog cov roj fluorine los tsim cov corrosive rhodium (VI) fluoride, RhF6. Cov khoom no, nrog kev saib xyuas, tuaj yeem ua kom sov rau hauv daim ntawv rhodium (V) fluoride, uas muaj cov qauv tetrameric liab tsaus nti [RhF5] 4.

 

Rhodium yog cov hlau tsis tshua muaj txiaj ntsig thiab muaj txiaj ntsig zoo uas nyob hauv pawg platinum. Nws yog lub npe hu rau nws cov khoom tshwj xeeb, zoo li siab tiv thaiv corrosion thiab oxidation, zoo heev thermal thiab hluav taws xob conductivity, thiab tsawg toxicity. Nws kuj tseem muaj kev cuam tshuam zoo thiab muaj qhov zoo nkauj silvery-dawb zoo li, ua rau nws yog ib qho khoom siv nrov hauv cov hniav nyiaj hniav kub thiab cov khoom zoo nkauj.

 

Rhodium tsis hnov ​​​​mob nrog ntau yam khoom ntawm chav tsev kub, uas ua rau nws tiv taus corrosion heev. Txawm li cas los xij, zoo li txhua yam hlau, rhodium tseem tuaj yeem raug qee yam tshuaj lom neeg hauv qee yam mob. Ntawm no, peb yuav tham txog qee qhov kev tawm tsam uas rhodium tuaj yeem raug.

 

1. Rhodium thiab Oxygen:

Rhodium reacts nrog oxygen ntawm qhov kub thiab txias, tsim rhodium (III) oxide (Rh2O3). Cov tshuaj tiv thaiv no tshwm sim thaum rhodium rhuab saum 400 ° C hauv huab cua. Rhodium (III) oxide yog cov hmoov grey tsaus uas yog insoluble hauv dej thiab feem ntau cov kua qaub.

 

2. Rhodium thiab Hydrogen:

Rhodium kuj reacts nrog hydrogen roj ntawm qhov kub siab txog 600 ° C, tsim rhodium hydride (RhH). Rhodium hydride yog cov hmoov dub uas yog me ntsis soluble hauv dej. Cov tshuaj tiv thaiv ntawm rhodium thiab hydrogen roj yog thim rov qab, thiab cov hmoov tuaj yeem decompose rov qab rau hauv rhodium thiab hydrogen gas.

 

3. Rhodium thiab Halogens:

Rhodium reacts nrog halogens (fluorine, chlorine, bromine, thiab iodine) los tsim rhodium halides. Lub reactivity ntawm rhodium nrog halogens nce los ntawm fluorine rau iodine. Rhodium halides feem ntau yog cov khoom daj lossis txiv kab ntxwv uas yog soluble hauv dej. Rau

Piv txwv li: Rhodium fluoride,Rhodium (III) ChlorideRhodium bromine,Rhodium iodine.

 

4. Rhodium thiab Sulfur:

Rhodium tuaj yeem cuam tshuam nrog sulfur ntawm qhov kub thiab txias los tsim rhodium sulfide (Rh2S3). Rhodium sulfide yog cov hmoov dub uas yog insoluble hauv dej thiab feem ntau cov kua qaub. Nws yog siv nyob rau hauv ntau yam kev siv xws li hlau alloys, lubricants, thiab semiconductors.

 

5. Rhodium thiab Acids:

Rhodium yog resistant rau feem ntau acids; Txawm li cas los xij, nws tuaj yeem yaj hauv qhov sib xyaw ntawm hydrochloric thiab nitric acids (aqua regia). Aqua regia yog cov tshuaj corrosive heev uas tuaj yeem yaj kub, platinum, thiab lwm yam hlau muaj nuj nqis. Rhodium feem ntau dissolves hauv aqua regia los tsim chloro-rhodium complexes.

 

Nyob rau hauv xaus, Rhodium yog ib tug heev resistant hlau uas muaj ib tug tsawg reactivity rau lwm yam tshuaj. Nws yog cov khoom siv tseem ceeb uas siv ntau yam kev siv, suav nrog cov hniav nyiaj hniav kub, khoom siv hluav taws xob, thiab catalytic converters rau tsheb. Txawm hais tias nws qhov xwm txheej tsis zoo, rhodium tuaj yeem ua rau qee yam tshuaj lom neeg xws li oxidation, halogenation, thiab acid dissolution. Zuag qhia tag nrho, qhov tshwj xeeb ntawm cov hlau no lub cev thiab tshuaj lom neeg ua rau nws yog ib qho khoom siv rau ntau yam kev lag luam thiab kev lag luam.