Ammonium pentaborate is a chemical compound with the chemical formula NH4B5O8.[1][2]

Synthesis

The compound can be prepared by a controlled reaction of ammonia, boric acid, and water.[3][4]

Physical properties

The compound forms white crystals soluble in water.[5]

Ammonium pentaborate forms tetrahydrate H4B5NO8 · 4H2O[6] and octahydrate H4B5NO8 · 4H2O.[7]

Uses

The compound is used to inhibit heat, flame, and corrosion in a variety of industrial applications.[8]

References

  1. ^ Cheremisinoff, Nicholas P.; Davletshina, Tatyana A. (22 October 2013). Fire and Explosion Hazards Handbook of Industrial Chemicals. Elsevier. p. 22. ISBN 978-0-8155-1719-1. Retrieved 28 February 2025.
  2. ^ Song, Yuxiang; Wang, Junpeng; Chen, Ling; Yang, Ping (1 September 2020). "Ammonium pentaborate crystals with adjustable and bright phosphorescence and long lifetime". Journal of Luminescence. 225: 117325. doi:10.1016/j.jlumin.2020.117325. ISSN 0022-2313. Retrieved 28 February 2025.
  3. ^ Morgan, Alexander B. (16 November 2021). Non-halogenated Flame Retardant Handbook. John Wiley & Sons. p. 246. ISBN 978-1-119-75206-6. Retrieved 28 February 2025.
  4. ^ Kirk-Othmer Concise Encyclopedia of Chemical Technology, 2 Volume Set. John Wiley & Sons. 16 July 2007. p. 320. ISBN 978-0-470-04748-4. Retrieved 28 February 2025.
  5. ^ "AMMONIUM PENTABORATE | CAMEO Chemicals | NOAA". cameochemicals.noaa.gov. Retrieved 28 February 2025.
  6. ^ "Ammonium pentaborate tetrahydrate". Sigma Aldrich. Retrieved 28 February 2025.
  7. ^ "Ammonium pentaborate octahydrate". Sigma Aldrich. Retrieved 28 February 2025.
  8. ^ "Ammonium Pentaborate". Retrieved 28 February 2025.
Allikas: https://en.wikipedia.org/wiki/Ammonium_pentaborate
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