{"id":342,"date":"2025-11-20T11:06:16","date_gmt":"2025-11-20T11:06:16","guid":{"rendered":"https:\/\/poisonshops.com\/?post_type=product&p=342"},"modified":"2025-12-02T15:32:34","modified_gmt":"2025-12-02T15:32:34","slug":"niklov-karbonil","status":"publish","type":"product","link":"https:\/\/poisonshops.com\/hr\/proizvod\/niklov-karbonil\/","title":{"rendered":"karbonil nikla"},"content":{"rendered":"

Kupite karbonyl nikla online<\/h2>\n

\u0160to je nikl-karbonil?<\/h4>\n

Kupite karbonyl nikla online<\/a> (IUPAC naziv: tetrakarbonsilnikl) je organoniklov spoj s formulom Ni(CO)4. Ova bezbojna teku\u0107ina je glavni karboksil nikla.<\/p>\n

To je posrednik u Mondovom procesu za proizvodnju vrlo \u010distog nikl-karbonila (kupi nikl-karbonil online) i reagens u organsko-metalskoj kemiji, iako je Mondov proces prestao biti u uobi\u010dajenoj upotrebi zbog zdravstvenih opasnosti pri radu s tim spojem.<\/p>\n

Karbilnik nikla jedna je od najopasnijih tvari ikad prona\u0111enih u kemiji nikla zbog svoje izuzetno visoke toksi\u010dnosti, poja\u010dane velikom isparljivo\u0161\u0107u i brzim upijanjem kroz ko\u017eu. Kupite karbilnik nikla na crnom tr\u017ei\u0161tu.<\/p>\n

\"Trgovina<\/p>\n

Struktura i vezanje<\/span><\/h2>\n

U nikl-tetrakarbonilu se oksidacijsko stanje nikla odre\u0111uje kao nula. Formula je u skladu s pravilom o 18 elektrona. Molekula je tetraedarska, s \u010detiri karboksilna (monoksid ugljika) liganda. Studije difrakcije elektrona provedene su na ovoj molekuli, a udaljenosti Ni\u2013C i C\u2013O izra\u010dunate su na 1,838(2) i 1,141(2) angstroma, redom. Kupite nikl-karbonil online.<\/p>\n

Priprema<\/span><\/h3>\n

Ni(CO)4 je prvi put sintetiziran 1890. godine od Ludwiga Munda izravnom reakcijom nikl-metala s CO. Ovaj pionirski rad predvidio je postojanje mnogih drugih karbona karbona metalnih spojeva, uklju\u010duju\u0107i one vanadija, kroma, mangana, \u017eeljeza i kobalta. Do kraja 19. stolje\u0107a tako\u0111er se industrijski primjenjivao za pro\u010di\u0161\u0107avanje nikla.<\/p>\n

Pri 323 K (50 \u00b0C; 122 \u00b0F) uglji\u010dni monoksid prolazi preko ne\u010distog nikla. Optimalna brzina nastaje pri 130 \u00b0C. Kupite nikl-karbonil na crnom tr\u017ei\u0161tu.<\/p>\n

Termalna dekarbonizacija<\/span><\/h4>\n

Na umjerenoj toplini, Ni(CO)4<\/sub> Raspad na uglji\u010dni monoksid i metalni nikl. U kombinaciji s lakim stvaranjem iz CO-a i \u010dak vrlo ne\u010distog nikla, ovaj raspad je osnova Mondovog procesa za pro\u010di\u0161\u0107avanje kupovnog nikl-karbona ili za galvanizaciju povr\u0161ina. Termi\u010dki raspad zapo\u010dinje pri otprilike 180 \u00b0C i poja\u010dava se na vi\u0161im temperaturama.<\/p>\n

\"Biolo\u0161ko<\/p>\n

Kupite karbonyl nikla online<\/h3>\n

Reakcije s elektrofilima i oksidacijskim sredstvima<\/span><\/h5>\n

Karbonil nikla mo\u017ee se oksidirati. Klor oksidira karbonil nikla u NiCl.2<\/sub>, otpu\u0161taju\u0107i CO plin. Ostali halogeni se pona\u0161aju analogi\u010dno. Ova reakcija pru\u017ea prakti\u010dan na\u010din talo\u017eenja niklnog dijela toksi\u010dnog spoja.<\/p>\n

Reakcije Ni(CO)4<\/sub> s alkilnim i arilnim halidima \u010desto rezultira karboniliranim organskim proizvodima.<\/p>\n

Vinilni halidi, poput PhCH=CHBr, pretvaraju se u nezasi\u0107ene estere pri tretmanu s Ni(CO).4<\/sub> slijedi natrijev metoksid.<\/p>\n

Takve reakcije tako\u0111er vjerojatno teku putem oksidativne adicije. Alilni halidi daju \u03c0-alil-nikl spojevima, kao \u0161to je (alil)2<\/sub>Ni2<\/sub>Cl2<\/sub>:<\/p>\n

\n
2 Ni(CO)4<\/sub>\u00a0+ 2 ClCH2<\/sub>CH=CH2<\/sub>\u00a0\u2192 Ni2<\/sub>(\u03bc<\/i>-Cl)2<\/sub>(\u03b7<\/i>3<\/sup>-C3<\/sub>H5<\/sub>)2<\/sub>\u00a0+ 8 CO<\/dd>\n<\/dl>\n

\"Trgovine<\/p>","protected":false},"excerpt":{"rendered":"

Melting point: :<\/b>-19\u00b0C
\nBoiling point: :<\/b>43\u00b0C
\nDensity\u00a0 :<\/b>1,32 g\/cm3<\/sup>
\nvapor pressure\u00a0 :<\/b>321 mmHg at 20 \u00b0C
\nFlash point: :<\/b><-20\u00b0C
\nform\u00a0 :<\/b>liquid
\ncolor\u00a0 :<\/b>colorless
\nOdor :<\/b>Sooty odor detectable at 0.5 to 3 ppm
\nWater Solubility\u00a0 :<\/b>soluble in ~5000 parts air free H2O; soluble alcohol, benzene, chloroform, acetone, CCl4 [MER06]
\nSensitive\u00a0 :<\/b>heat sensitive
\nExposure limits :<\/b>TLV-TWA: 0.05 ppm (0.35 mg as Ni\/m3<\/sup>) (ACGIH)
\nPEL: 0.001 ppm (0.007 mg Ni\/m3<\/sup>) (OSHA, MSHA and NIOSH)
\nIDLH: 0.001 ppm (NIOSH, OSHA).\u00a0Stability: :<\/b>Stable. Highly flammable and highly reactive. Explosion hazard.
\nEPA Substance Registry System :<\/b>Nickel carbonyl (13463-39-3)<\/p>\n","protected":false},"featured_media":343,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[17],"product_tag":[],"class_list":{"0":"post-342","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-poisons-for-sale","8":"first","9":"instock","10":"shipping-taxable","11":"purchasable","12":"product-type-variable"},"_links":{"self":[{"href":"https:\/\/poisonshops.com\/hr\/wp-json\/wp\/v2\/product\/342","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/poisonshops.com\/hr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/poisonshops.com\/hr\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/poisonshops.com\/hr\/wp-json\/wp\/v2\/comments?post=342"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/poisonshops.com\/hr\/wp-json\/wp\/v2\/media\/343"}],"wp:attachment":[{"href":"https:\/\/poisonshops.com\/hr\/wp-json\/wp\/v2\/media?parent=342"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/poisonshops.com\/hr\/wp-json\/wp\/v2\/product_brand?post=342"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/poisonshops.com\/hr\/wp-json\/wp\/v2\/product_cat?post=342"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/poisonshops.com\/hr\/wp-json\/wp\/v2\/product_tag?post=342"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}