Kalsium fluorida
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No. Pendaftaran CAS |
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Imej model 3D Jmol |
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ECHA InfoCard | 100.029.262 | ||
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Formula kimia | CaF2 | ||
Jisim molar | 78.07 g·mol−1 | ||
Rupa bentuk | White crystalline solid (single crystals are transparent) | ||
Ketumpatan | 3.18 g/cm3 | ||
Takat lebur | 1,418 °C (2,584 °F; 1,691 K) | ||
Takat didih | 2,533 °C (4,591 °F; 2,806 K) | ||
Keterlarutan dalam air | 0.015 g/L (18 °C) 0.016 g/L (20 °C) | ||
Hasil keterlarutan (Ksp) | 3.9 × 10−11 [1] | ||
Keterlarutan | insoluble in acetone slightly soluble in acid | ||
Kerentanan magnet (χ) | -28.0·10−6 cm3/mol | ||
Indeks biasan (nD) | 1.4338 | ||
Struktur | |||
Struktur kristal | cubic crystal system, cF12[2] | ||
Kumpulan ruang | Fm3m, #225 | ||
Geometri koordinasi | Ca, 8, cubic F, 4, tetrahedral | ||
Bahaya | |||
Bahaya-bahaya utama | Reacts with concentrated sulfuric acid to produce hydrofluoric acid | ||
MSDS | ICSC 1323 | ||
NFPA 704 (berlian api) | ![]() 0 0 0 | ||
Takat kilat | Non-flammable | ||
Dos maut (LD) atau kepekatan dos maut (LC) | |||
LDLo (paling rendah diketahui) | >5000 mg/kg (oral, guinea pig) 4250 mg/kg (oral, rat)[3] | ||
Sebatian berkaitan | |||
Anion lain | kalsium klorida kalsium bromida kalsium iodida | ||
Kation lain | berylium fluorida Magnesium fluorida Strontium fluorida Barium fluorida | ||
Kecuali jika dinyatakan sebaliknya, data diberikan untuk bahan-bahan dalam keadaan piawainya (pada 25 °C [77 °F], 100 kPa). | |||
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Rujukan kotak info | |||
Kalsium fluorida ialah sejenis kimia tidak organik yang ada atom kalsium dan fluorin dengan formula kimia CaF2. Ia ialah sejenis pepejal yang putih. Ia dapat diketahui di dalam fluorit.
References
- ^ Pradyot Patnaik. Handbook of Inorganic Chemicals. McGraw-Hill, 2002, ISBN 0-07-049439-8
- ^ X-ray Diffraction Investigations of CaF2 at High Pressure, L. Gerward, J. S. Olsen, S. Steenstrup, M. Malinowski, S. Åsbrink and A. Waskowska, Journal of Applied Crystallography (1992), 25, 578-581 doi:10.1107/S0021889892004096
- ^ "Fluorides (as F)". Immediately Dangerous to Life or Health Concentrations (IDLH). Institut Kebangsaan untuk Keselamatan dan Kesihatan Pekerjaan (NIOSH).