Ammonium Hydroxide → Hafnium

HRID 47054

Reaction equation

HRID 47054 reaction equation
[Cl-].[Cl-].[Cl-].[Cl-].[Hf+4:5].[O:6]=[C:7]1[O:13][C@H:12]([C@H:14]([CH2:16][OH:17])[OH:15])[C:10]([OH:11])=[C:8]1[OH:9].[OH-].[NH4+]>O>[O:6]=[C:7]1[O:13][C@H:12]([C@H:14]([CH2:16][OH:17])[OH:15])[C:10]([OH:11])=[C:8]1[OH:9].[Hf:5]

Participants

6

Reactant 3

HCID 14923Ammonium HydroxideHCID 9927068Hafnium chloride (HfCl4) (6CI,8CI); Hafnium chloride; Hafnium tetrachloride; Hafnium(IV) chloride; Hafnium chloride (HfCl4), (T-4)-HCID 54670067L-Ascorbic Acid

Product 2

HCID 23986HafniumHCID 54670067L-Ascorbic Acid

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

Hydrated hafnium-ammonium-ascorbate was prepared as follows: 1.6 grams of hafnium-tetrachloride and 1.86 grams of crystalline ascorbic acid were dissolved in 5 ml of water, and the pH was adjusted to 6.5 with ammonium hydroxide. Two ml portions of the resulting solution were administered orally to rats and radiographs were obtained comparable to those seen with preparations described in the previous examples. Soluble complexes of ascorbic acid and hafnium possessing similar properties were obtained using molar ratios of ascorbic acid to hafnium of from 1:1 to 4:1.

Workup

  1. customradiographs were obtained comparable to

Sources & evidence

ORD record
ord-11eeb6d0b2e44c278b2f82f270f7498e
Source dataset
uspto-grants-1979_11
Patent number
US04176173

Linked notes

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