Sodium Phosphate, Dibasic → Tricalcium Phosphate

HRID 2118934Notes

Reaction equation

HRID 2118934 reaction equation
[Cr](O)(O)(=O)=O.[Cl-].[Ca+2:7].[Cl-].[P:9]([O-:13])([O-:12])([OH:11])=[O:10].[Na+].[Na+]>Cl.O>[P:9]([O-:13])([O-:12])([O-:11])=[O:10].[Ca+2:7].[P:9]([O-:13])([O-:12])([O-:11])=[O:10].[Ca+2:7].[Ca+2:7]

Participants

6

Reactant 3

HCID 24203Sodium Phosphate, DibasicHCID 24425Chromic AcidHCID 5284359Calcium Chloride

Product 1

HCID 24456Tricalcium Phosphate

Reagents, catalysts & solvents 2

HCID 313Hydrochloric AcidCatalystHCID 962WaterSolvent2×

Procedure

To 1800 ml of distilled water in a 2 liter volumetric flask, previously cleaned with hot chromic acid, is added 20 ml of the calcium chloride solution, followed by 2 drops of concentrated hydrochloric acid. 40 ml of the disodium hydrogen phosphate solution is then added. The volume of the mixture is brought to 2 liters with distilled water. 100 ml aliquots of the mixed solution are placed in a small (112 ml) glass bottle fitted with a screw cap. To this solution is added sufficient of the solution of the test compound to provide the required concentration of the test compound in the final volume of test solution (100 ml). Thus, 1.0 ml of 0.1% solution of test compound gives a concentration of the test compound in the final solution of 10 ppm.

Workup

  1. customfitted with a screw
  2. customcap
  3. additionTo this solution is added sufficient of the solution of the test compound

Sources & evidence

ORD record
ord-a26c7ec9c6084a3a8e564eee6f1e33de
Source dataset
uspto-grants-1987_07
Patent number
US04681686

Reaction notes

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