Asem borat
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Sunyata Rikat Identifikasi, Sifat ...
Asem borat | |
---|---|
Boric acid Trihydroxidoboron | |
Jeneng liya Orthoboric acid, Boracic acid, Sassolite, Optibor, Borofax, Trihydroxyborane, Boron(III) hydroxide, Boron Trihydroxide | |
Identifikasi | |
Nomor CAS | [10043-35-3] |
PubChem | 7628 |
Nomer EINECS | 233-139-2 |
KEGG | D01089 |
ChEBI | CHEBI:33118 |
SMILES | OB(O)O |
InChI | 1/BH3O3/c2-1(3)4/h2-4H |
Sifat | |
Rumus kimia | H3BO3 |
Massa molar | 61.83 g mol−1 |
Panampilan | White crystalline solid |
Densitas | 1.435 g/cm3 |
Titik leleh |
170.9 °C, 444 K, 340 °F |
Titik umob |
300 °C, 573 K, 572 °F |
Kelarutan dalam air | 2.52 g/100 mL (0 °C) 4.72 g/100 mL (20 °C) 5.7 g/100 mL (25 °C) 19.10 g/100 mL (80 °C) 27.53 g/100 mL (100 °C) |
Kelarutan dalam other solvents | Soluble in lower alcohols moderately soluble in pyridine very slightly soluble in acetone |
log P | -0.29[1] |
Kaasaman (pKa) | 9.24, 12.4, 13.3 |
Struktur | |
Wangun molekul | Trigonal planar |
Momen dipol | Zero |
Bahaya | |
NFPA 704 | |
Titik murub | Non-flammable |
Kejaba ditélakaké suwaliké, data ing ndhuwur kanggo ing suhu lan tekanan standar (25°C, 100 kPa) |
Tutup
Asem borat, uga diarani hidrogén borat, asem boracat, lan asem ortoborat minangka asem boron monopolitik Lewis sing lemah. Nanging, sawetara prilaku marang sawetara reaksi kimia sing nuduhaké pangertené asem trasat saka Brønsted. Asem borat asring digunakaké minangka antiseptik sing entheng[2], insektisida, panahan geni, penyerap neutron, utawa prekursor kanggo senyawa kimia liyané. Iki nduwèni formula kimia H 3 B O 3 (kadhang ditulis B (OH) 3 ), lan ana ing bentuk kristal tanpa warna utawa bubuk putih sing larut ing banyu.
. Nalika kedadéyan minangka mineral, diarani sassolite.