Water → HCID 86756076, compound

HRID 1281634Notes

Reaction equation

HRID 1281634 reaction equation
B(O)(O)O.O.[B:6]([O:9][B:10]([OH:12])[OH:11])([OH:8])[O-:7].[NH4+:13].Br([O-])(=O)=O.Br([O-])(=O)=O.[NH4+].[NH4+]>>[B:6]([O:9][B:10]([OH:12])[OH:11])([O-:8])[O-:7].[NH4+:13].[NH4+:13]

Participants

5

Reactant 4

HCID 962WaterHCID 7628Boric Acid2×HCID 86756077HCID 86756077, compoundHCID 86756078HCID 86756078, compound

Product 1

HCID 86756076HCID 86756076, compound

Procedure

100 gms of boric acid are heated to 160° C. to 200° C. until three mols of water is removed per molecule thereby producing boron oxide (B2O3). The powdered boric oxide is slowly added to 100 gms of aqueous ammonia containing 25% ammonia while agitating and keeping the temperature below the temperature wherein the ammonia evaporates from the water. Increase pressure may also be used to prevent the loss of ammonia from the water and the ammonia may be added to the water in a gaseous form, The mixture is allowed to react for 1-4 hours thereby producing a mixture of monoammonium diborate, diammonium dibromate, polyammonium dibromate and ammonium salt of boric acid. The mixture is dried and the ammonium salt of boric acid condensates to form diammonium diborate. The mixture is pulverized into a fine powder.

Workup

  1. customis removed per molecule
  2. additionThe powdered boric oxide is slowly added to 100 gms of aqueous ammonia containing 25% ammonia
  3. customevaporates from the water
  4. temperatureIncrease pressure
  5. additionthe ammonia may be added to the water in a gaseous form
  6. customto react for 1-4 hours
  7. customthereby producing
  8. customThe mixture is dried

Sources & evidence

ORD record
ord-81b212b42e7e4d8c8610197ea99d9464
Source dataset
uspto-grants-2002_09
Patent number
US06454968B1

Reaction notes

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