Lithium Hydroxide → Dilithium monocopper(II) citrate

HRID 65823

反応式

HRID 65823 の反応式
[C:1]([O-:13])(=[O:12])[CH2:2][C:3]([CH2:8][C:9]([O-:11])=[O:10])([C:5]([O-:7])=[O:6])[OH:4].[Li+:14].[Li+].[Li+].[OH-].[Li+].[Cu:19].C([O-])(=O)CC(CC([O-])=O)(C([O-])=O)O>O>[C:1]([O-:13])(=[O:12])[CH2:2][C:3]([CH2:8][C:9]([O-:11])=[O:10])([C:5]([O-:7])=[O:6])[OH:4].[Cu+2:19].[Li+:14].[Li+:14]

参加物

6

反応物 4

HCID 3939Lithium HydroxideHCID 13520Lithium CitrateHCID 23978CopperHCID 31348Citrate

生成物 1

HCID 23056454Dilithium monocopper(II) citrate

試薬・触媒・溶媒 1

HCID 962Water溶媒

実験手順

10 millimoles of lithium citrate were dissolved in 10 milliliters of water. To this solution, 10 millimoles of cupric chloride (CuCl2.2H2O) were added gradually with stirring. A deep blue solution was formed. This was neutralized to a pH of about 7 with 10 millimoles of lithium hydroxide (LiOH.H2O). This solution, when evaporated to dryness, gave a deep blue, semicrystalline solid. This solid was ground to a fine powder and the lithium chloride was extracted with 50 milliliters of dry methanol, five times, at 35° C. The blue solid which remained behind was evacuated to remove methanol and desiccated. An attempt was made to crystallize the salt from water-organic solvent systems, but apparently due to the extremely hygroscopic nature of the salt and the high negative charge on the ionized molecule, the solid obtained was microcrystalline to amorphous. The following formula is proposed for the 1:1 complex of copper and citrate based on elucidation of the structure and analyses described hereinafter.

後処理

  1. customA deep blue solution was formed
  2. customThis solution, when evaporated to dryness
  3. customgave a deep blue, semicrystalline solid
  4. extractionthe lithium chloride was extracted with 50 milliliters of dry methanol, five times, at 35° C
  5. custombehind was evacuated
  6. customto remove methanol
  7. customto crystallize the salt from water-organic solvent systems
  8. additionapparently due to the extremely hygroscopic nature of the salt and the high negative charge on the ionized molecule
  9. customthe solid obtained

出典と根拠

ORDレコード
ord-4f353ea2a7a64395b4c6d4bfd0269ea2
出典データセット
uspto-grants-1978_12
特許番号
US04129509

関連ノート

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