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Copper(II) formate and urea complex

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   Copper(II) formate and urea complex   
Names: Complex of copper(II) formate and urea
Formula: Cu(HCOO)2 · 2CO(NH2)2 (anhydrous)
Cu(HCOO)2 · 2CO(NH2)2 · 2H2O (dihydrate)
Molar mass: 273.691 g/mol (anhydrous)
309.721 g/mol (dihydrate)
Crystal system: monoclinic (dihydrate)
a=8.275 Å, b=8.346 Å, c=8.018 Åα=90°, β=96.36°, γ=90°
Shapes:
https://en.crystalls.info/w/uploads/media/d/d0/Truncated_deformed_oblique_hexagonal_prism.json
Truncated deformed oblique hexagonal prism
https://en.crystalls.info/w/uploads/media/9/9a/Truncated_deformed_hexagonal_prism.json
Truncated deformed hexagonal prism

Color: bright blue
Optical properties: birefringence
Stability: stable (dihydrate)

Description

Organic compound, adduct of urea and copper(II) formate. From water solutions crystallizes as dihydrate.

Precursors

Reaction between urea and copper(II) formate.

Chemical equation:

Cu(HCOO)2 + 2CO(NH2)2 = Cu(HCOO)2 · 2CO(NH2)2


For preparation of 100.00g of copper(II) formate and urea complex dihydrate а 38.78g of urea and 72.85g of copper(II) formate tetrahydrate is required.

Dissolve compounds in hot water apart and then mix solutions into one container with intense stirring. Cooling or evaporation of a solution will cause double salt crystallyzation.

Storage conditions

Store in its original form or under several layers of varnish at average humidity and room temperature. Do not store in matchboxes or cotton wool and do not heat.

Gallery


Sources


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   Formates

Barium formate (Ba(COOH)2) • Calcium formate (Ca(COOH)2) • Cadmium formate (Cd(COOH)2) • Copper(II) formate (Cu(COOH)2) • Copper(II) formate and urea complex (Cu(HCOO)2 · 2CO(NH2)2) • Iron(II) formate (Fe(COOH)2) • Iron(III) formate (Fe2(COOH)3) • Lead(II) formate (Pb(COOH)2) • Manganese(II) formate (Mn(COOH)2) • Strontium formate (Sr(COOH)2) • Zinc formate (Zn(COOH)2)


   Copper compounds
Salts

Copper (Cu) • Copper(II) acetate (Cu(CH3COO)2) • Copper(II) dihydrophosphate (Cu(H2PO4)2) • Copper(II) formate (Cu(COOH)2) • Copper(II) lactate (Cu(C3H5O3)2) • Copper(II) nitrate (Cu(NO3)2) • Copper(II) sulfamate (Cu(NH2SO3)2) • Copper(II) sulfate (CuSO4) • Copper(II) tartrate (CuC4H4O6) • Copper(II) chloride (CuCl2)

Double salts

Copper-calcium acetate (CuCa(CH3COO)4) • Copper(II)-iron(II) sulfate ((Cu,Fe)SO4) • Copper(II)-ammonium sulfate ((NH4)2Cu(SO4)2) • Copper(II)-potassium sulfate (K2Cu(SO4)2)

Complexes

Dicarbonatocuprates • Dioxalatocuprates • Bis-thetramethylethylenediaminecopper(II) nitrate ([Cu((H3CNCH3)2C4H8)](NO3)2) • Glycinecopper(II) sulfate ([Cu(NH2CH2COOH)]SO4) • Copper(II) formate and urea complex (Cu(HCOO)2 · 2CO(NH2)2) • Potassium dioxalatocuprate(II) (K2[Cu(C2O4)2]) • Sodium dioxalatocuprate(II) (Na2[Cu(C2O4)2]) • Sodium dicarbonatocuprate(II) (Na2[Cu(CO3)2]) • Tetraamminecopper(II) sulfate ([Cu(NH3)4]SO4) • Tetrachlorocuprates • Tris(hydroxymethyl)methanoaminecopper(II) sulfate ([Cu(NH2C(CH2OH)3)4]SO4)


   Adducts

Diglycine hydrochloride (2NH2CH2COOH · HCl) • Glucose and sodium bromide complex (2C6H12O6 · NaBr) • Glucose and sodium chloride complex (2C6H12O6 · NaCl) • Glutamic acid hydrochloride (C5H9NO4 · HCl) • Glutamic acid sulfate (C5H9NO4 · H2SO4) • Hydroxylammonium chloride (NH2OH · HCl) • P-nitroaniline hydrochloride (C6H6N2O2 · HCl) • Urea and sodium chloride complex (CO(NH4)2 · NaCl) • Copper(II) formate and urea complex (Cu(HCOO)2 · 2CO(NH2)2) • Urea citrate ((NH2)2CO · C6H8O7)


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