Ammonia → boric acid, sodium salt

HRID 1274037

Reaction equation

HRID 1274037 reaction equation
[NH3:1].[B:2]([O-:5])([O-:4])[O-:3].[Na+:6].[Na+].[Na+]>>[Na+:6].[NH4+:1].[B:2]([O-:5])([O-:4])[O-:3].[Na+:6].[Na+:6].[Na+:6]

Participants

4

Reactant 2

HCID 222Ammonia2×HCID 159383boric acid, sodium salt2×

Product 2

HCID 159383boric acid, sodium saltHCID 21584762Ammonium sodium salt

Procedure

About 100 parts by weight of powdered borax (Na2B4O7 ·4H2O) are added to 100 parts by weight of concentrated aqueous ammonia containing 25% ammonia while agitating. The mixture is reacted for about 4 hours at ambient temperature and pressure thereby hydrolyzing the sodium borate and splitting the molecules into smaller molecules. The ammonia reacts with the sodium borate to produce an ammonium sodium salt of polyboron oxyacid and polyammonium sodium borate which is dried and pulverized into a powder with the general formula

Workup

  1. customThe mixture is reacted for about 4 hours at ambient temperature

Sources & evidence

ORD record
ord-f357dffde5d842f8850c5d219d5a247b
Source dataset
uspto-grants-2000_12
Patent number
US06156240

Linked notes

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