Лекции.Кобальт Flashcards by Gabriel Vladimirov

Q

Минералы кобальта

A

CoAs2 - кобальтовый шпейс смальтит
CoAs3 - скуттерудит CoAsS - кобальтовый блеск кобальтит

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Q

CoS + O2

A

Co3O4 + SO2

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Q

Co3O4 + C

A

Co + CO

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Q

KO2 + Co3O4 (1100)

A

K4CoO4 + O2

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Q

Co(OH)2 + O3

A

CoO2 + O2 + H2O ([CoO2*nH2O)]

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Q

CoCl2 + CsCl + F2

A

Cs2[CoF6] + Cl2 - жёлтый

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Q

K4CoO4 + H2SO4

A

CoSO4 + K2SO4 + O2 + H2O

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Q

CoSO4 + KOH + H2O2

A

Co(OH)3 + K2SO4

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Q

CoSO4 + KOH + Br2

A

CoOOH + KBr + K2SO4

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Q

Co(OH)3 + H2SO4(конц)

A

H[Co(SO4)2] + H2O - зелёный

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Q

Co(OH)3 + H2SO4(разб)

A

CoSO4 + O2 + H2O

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Q

Co + F2

A

CoF3

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Q

CoF3 + CsF

A

Cs3[CoF6]

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Q

K3[CoF6] + H2O

A

KF + HF + CoF2 + O2 - быстро разлагается

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Q

Co2(SO4)3 + H2O

A

CoSO4 + H2SO4 + O2 - медленно разлагается

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Q

Cs2SO4 + Co2(SO4)3 + h2O

A

CsCo(SO4)2*12H2O - устойчив

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Q

Аммиакаты Co(+3)

A

[Co(NH3)6]Cl3 - жёлтый
[CoCl(NH3)5]Cl2 -красный
[CoCl2(NH3)4]Cl - 2 изомера
[CoCl3(NH3)3] - 2 изомера

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Q

[Co(NH3)6]Cl3 + H2SO4

A

реакция не идёт

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Q

[Co(NH3)6]Cl3 + KI

A

[Co(NH3)6]I3↓ + KCl

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Q

[Co(NH3)6]Cl3 + SbF3 + KF

A

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Q

CoCl2 + NaNO2 + HCl + en

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A

[Co(NO2)2en2]Cl + NaCl + NO + H2O

Q

CoCl2 + O2 + KCN

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A

K6[Co2(O2)(CN)10] + KCl

Q

Структурные типы металлов

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A

Кобальт - Cu(ГЦК) Mg(ГПУ).
Родий и иридий - Cu

Q

α-Co(ГЦК) (769)

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A

β-Co(ГПУ)

Co + H2SO4(к) Co + HNO3(к) Co + HNO3 + HCl

реакция не идёт

Co + HCl

CoCl2 + H2

Co + HNO3(разб)

Co(NO3)2 + N2 + H2O

Co + KOH (р-р)

реакция не идёт

Co + O2

Co3O4

Co + Cl2 (800)

CoCl2

Co + F3(300)

CoF3

Co + P(800)

CoP3

Co + HF

CoF2 + H2

Co + I2

CoI2

CoO -зелёный+ HCl

CoCl2 + H2O

CoO + O2 (600)

Co3O4

Co(NO3)2

Co3O4 + NO2 + O2

Co3O4 + HCl

CoCl2 + Cl2 + H2O

Co(OH)2 + H2SO4

CoSO4 + H2O

Co(OH)2 + KOH(конц)

K2[Co(OH)4]

CoCl2(р-р) + NH3

[Co(NH3)6]Cl2

[Co(NH3)6]Cl2 + H2O

реакция не идёт

Co(CN)2 + KCN

K3[Co(CN)5] -коричневый

K3[Co(CN)5] (hv)

K6[Co2(CN)10]

CoCl2 + NH3(г)

[Co(NH3)6]Cl2 - жёлто-розовый

[Co(NH3)6]Cl2 + H2O

[Co(H2O)6]Cl2 + NH3 - красный

[Co(H2O)6]Cl2

[Co(H2O)4]Cl2 + H2O - розовый

[Co(H2O)4]Cl2

CoCl2 = H2O - голубой

[Co(H2O)4]Cl2 + HCl

H2[CoCl4] + H2O - синий

H2[CoCl4] + H2O

[Co(H2O)6]Cl2 + HCl - красный

[Co(H2O)6](2+) + O2 [Co(NH3)6](2+) + O2

реакция не идёт [Co(NH3)6](3+)