AMMONIUM PENTABORATE EXTRA PURE

CBI

two crystal(s) forms: ortho-rhomb (α) and monoclinic (β); very stable with respect to loss of NH3, losing less than 1% NH3 at 50°C and only 2% at 200°C; prepared from an aqueous solution of NH3 and boric acid; used in flameproofing formulations [HAW93] [KIR78]

In the carbon ammonia method, the roasted boron-magnesium ore powder and ammonium bicarbonate are heated and reacted in a closed reactor, the slurry is filtered, and the filtrate is sent to the ammonia distillation tower to recover excess ammonia, and the ammonia is evaporated to the molar ratio of ammonia to boron (NH3: B2O3) It is 1: (2.3~2..5), and then evaporated under reduced pressure (the temperature does not exceed 70°C), cooled and crystallized, centrifuged, and dried below 70°C to obtain a finished product of ammonium pentaborate. Its metathesis method puts boric acid in a solution such as ammonia water prepared with liquid ammonia, and reacts at a boiling temperature. To ensure the progress of the reaction, the ammonia water should be appropriately excessive. After all the materials are dissolved, the clear liquid is cooled, crystallized, centrifuged, and then dried at a temperature lower than 20°C to obtain the finished ammonium pentaborate.

Used in the manufacture of fire-resistant wood, fire-resistant textiles, telecommunications equipment and advanced glass

Molecular Weight:312.1
Hydrogen Bond Donor Count:1
Hydrogen Bond Acceptor Count:15
Exact Mass:312.0082509
Monoisotopic Mass:313.0046193
Topological Polar Surface Area:347
Heavy Atom Count:21
Formal Charge:-14
Complexity:8
Covalently-Bonded Unit Count:6
Compound Is Canonicalized:Yes