ðə kˈɑːmpaʊnd ɪz hˌaɪɡɹəskˈɑːpɪk, fˈɔːɹmɪŋ ðə tɹˈaɪhaɪdɹˌeɪt , wˈɛɹɪn wˈʌn wˈɔːɾɚɹ ɪn koʊˈɔːɹdɪnˌeɪɾᵻd tə bˈoːɹɑːn ænd ðɪ ˈʌðɚ tˈuː wˈɔːɾɚz ɑːɹ hˈaɪdɹədʒənbˈɑːndᵻd tə ðə koʊˈɔːɹdɪnˌeɪɾᵻd wˈɔːɾɚ.
The compound is hygroscopic, forming the trihydrate , wherein one water in coordinated to boron and the other two waters are hydrogen-bonded to the coordinated water.