Phosphoric Acid → HCID 86735709, compound

HRID 372145Notes

Reaction equation

[P:1](=[O:5])([OH:4])([OH:3])[OH:2].[B:6]([OH:9])([OH:8])[OH:7]>>[B:6]([OH:9])([OH:8])[OH:7].[P:1](=[O:2])([OH:5])([OH:4])[OH:3]

Participants

Reactant 2

HCID 1004Phosphoric Acid

HCID 7628Boric Acid

Product 1

HCID 86735709HCID 86735709, compound

Procedure

To a round bottom, 3 liter, 3-necked reaction flask fitted with a heating mantle, mechanical stirrer, reflux condenser and thermometer are added 1650 parts of 85% phosphoric acid. Under mild agitation, 50 parts of granular boric acid are charged to yield a boric acid-phosphoric acid dispersion. The boric acid is added as a smooth steady "stream", as opposed to dumping in bulk, to avoid clumping. To the agitated dispersion are added 310 parts of hydrated alumina (Alcoa, C-33 grade) as a smooth steady stream to give a milky-white slurry.

Workup

customTo a round bottom, 3 liter, 3-necked reaction flask fitted with a heating mantle, mechanical stirrer
temperaturereflux condenser

Sources & evidence

ORD record: ord-b7e7886b70904f9cbe00f4fa07933298
Source dataset: uspto-grants-1978_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04089692

Reaction notes

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