Tsev > Kev Paub > Ntsiab lus
High Purity Copper
- Sep 05, 2017 -

Element cim CU, atomic number 29, atomic weight 63.55, peripheral electron arrangement 3d104s1, nyob hauv Quaternary IB tsev neeg. Atomic radius ntawm 127.8 pi meters, + vojvoog ntawm 72, thawj zog ionization 750kj / mol, electronegativity 1.9, hom oxidation tooj + 1, +2. Violet-red glimmer hlau nrog zoo ductility thiab kub hloov thiab ua tau zoo. Density 8.96g / cm3, melting point 1083.4 ± 0.2 ℃, boiling point 2.567 ℃. Tshuaj lom neeg tsis muaj zog, nyob hauv cov huab cua qhuav, nyob rau hauv cov huab cua ntawm cov pa roj carbon dioxide yooj yim los ua cov alkaline copper carbonate, feem ntau hu ua Patina (CU2 (OH) 2co3). Copper oxide raug tsim thaum kub nrog oxygen, tooj liab halide yog tsim nrog halogen ras txog, thiab cuprous sulfide raug tsim los ntawm cov tshuaj tiv thaiv nrog leej faj. Tsis ua pa nrog dej. Insoluble nyob rau hauv cov kua qaub thiab dilute sulfuric acid. Soluble nyob rau hauv nitric acid thiab kub concentrated sulfuric acid. Tseem soluble hauv concentrated hydrochloric acid los ua kom muaj H2cucl3 thiab H2. Maj mam dissolve hauv ammonia. susceptible to alkali erosion. Feem ntau siv hluav taws xob kev lag luam, xws li hlau, cable, ntau yam khoom siv hluav taws xob. Kuj tseem siv rau ntau hom kev sib txawv, xws li tooj dag, tooj liab, tooj liab thiab xee caj npab, thiab tseem siv rau electroplating. Tooj liab tau pom nyob rau hauv ancient sij hawm, thiab cov zaub mov tseem ceeb tau chalcopyrite (CuFeS2), Chalcocite (cu2s), liab Copper ($ literal) thiab Malachite (CU2 (OH) 2co3). Copper pob zeb tooj liab, thiab lim purified yog thaum kawg los ntawm electrolysis.