Oxygen → Orthosilicic acid

HRID 596526

Reaction equation

HRID 596526 reaction equation
[O-:1][Si:2]([O-:4])=[O:3].[K+:5].[K+].[S:7]([O-:11])([OH:10])(=[O:9])=[O:8].[K+].O=O>O>[Si:2]([OH:8])([OH:4])([OH:1])[OH:3].[S:7]([O-:11])([O-:10])(=[O:9])=[O:8].[K+:5].[K+:5]

Participants

6

Reactant 3

HCID 977OxygenHCID 66200Silicic acid (H2SiO3), potassium salt (1:2)2×HCID 516920Potassium bisulfate

Product 2

HCID 14942Orthosilicic acidHCID 24507Potassium Sulfate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

About equal parts by weight of a dry potassium metasilicate containing less than 6 mols of water per mol of potassium metasilicate and potassium hydrogen sulfate are mixed. The mixture is agitated at ambient pressure and the chemical reaction causes oxygen to evolve in 1 to 3 minutes; considerable heat is produced, and the chemical reaction is complete in 1 to 2 hours, thereby producing white granules of a silicic acid compound and potassium sulfate. The mixture is washed with water and filtered to remove the salt. The silicic acid compound is air dried at 25° to 75° C.

Workup

  1. customthe chemical reaction
  2. temperatureconsiderable heat
  3. customis produced
  4. customthe chemical reaction
  5. waitis complete in 1 to 2 hours

Sources & evidence

ORD record
ord-d7a24ae2d7a64c1f8dcc706dfddc713d
Source dataset
uspto-grants-1977_03
Patent number
US04011253

Linked notes

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