Barium klorida
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| Nama | |
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| Nama lain
Barium muriat
Barium diklorida | |
| Pengecam | |
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Imej model 3D Jmol
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| ChemSpider | |
| ECHA InfoCard | 100.030.704 |
| Nombor EC |
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PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| Sifat | |
| BaCl2 | |
| Jisim molar | 208.23 g/mol (kontang) 244.26 g/mol (dihidrat) |
| Rupa bentuk | Pepejal putih |
| Ketumpatan | 3.856 g/cm3 (kontang) 3.0979 g/cm3 (dihidrat) |
| Takat lebur | 962 °C (1,764 °F; 1,235 K) (960 °C, dihidrat) |
| Takat didih | 1,560 °C (2,840 °F; 1,830 K) |
| 31.2 g/100 mL (0 °C) 35.8 g/100 mL (20 °C) 59.4 g/100 mL (100 °C) | |
| Keterlarutan | Larut dalam metanol, tidak larut dalam etanol, etil asetat[1] |
| -72.6·10−6 cm3/mol | |
| Struktur | |
| Struktur kristal | ortogonal (kontang) monoklin (dihidrat) |
| Geometri koordinasi |
7-9 |
| Termokimia | |
Entalpi pembentukan
piawai (ΔfH⦵298) |
−858.56 kJ/mol |
| Bahaya | |
| Pengelasan EU | {{{value}}} |
| Frasa R | Templat:R20, Templat:R25 |
| Frasa S | S1/2, S45 |
| NFPA 704 (berlian api) | |
| Takat kilat | Tidak mudah terbakar |
| Dos maut (LD) atau kepekatan dos maut (LC) | |
LD50 (median dos)
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78 mg/kg (tikus, oral) 50 mg/kg (tikus belanda, oral)[3] |
LDLo (paling rendah diketahui)
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112 mg Ba/kg (arnab, oral) 59 mg Ba/kg (anjing, oral) 46 mg Ba/kg (tikus, oral)[3] |
| NIOSH (Had pendedahan kesihatan AS): | |
PEL (Dibenarkan)
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TWA 0.5 mg/m3[2] |
REL (Disyorkan)
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TWA 0.5 mg/m3[2] |
IDLH (Bahaya serta-merta)
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50 mg/m3[2] |
| Sebatian berkaitan | |
Anion lain
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Barium fluorida Barium bromida Barium iodida |
Kation lain
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Berilium klorida Magnesium klorida Kalsium klorida Strontium klorida Radium klorida Plumbum klorida |
Kecuali jika dinyatakan sebaliknya, data diberikan untuk bahan-bahan dalam keadaan piawainya (pada 25 °C [77 °F], 100 kPa). | |
 pengesahan (apa yang perlu: / ?)
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| Rujukan kotak info | |
Barium klorida ialah sebuah sebatian kimia barium yang memiliki formula kimia BaCl2. Sebatian ini memiliki sifat beracun, berwarna putih dan higroskopik, di mana sebatian barium klorida akan bertukar kepada bentuk dihidrat, BaCl2(H2O)2. Sebatian ini memiliki kegunaan terhad dalam bidang industri dan dalam makmal.[4]
Penghasilan
Dalam industri, barium klorida dihasilkan melalui proses tindak-tindak balas yang bermula daripada barit (barium sulfat) yang ditukarkan kepada barium sulfida, BaS lalu ditukarkan kepada barium klorida.[5] Tindak balas pertama dilakukan dalam suhu tinggi.
![{\displaystyle {\mathrm {BaSO} {\vphantom {A}}_{\smash[{t}]{4}}{}+{}4\,\mathrm {C} {}\mathrel {\longrightarrow } {}\mathrm {BaS} {}+{}4\,\mathrm {CO} }}](https://wikimedia.org/api/rest_v1/media/math/render/svg/02673ddde7a28651b8d4c9684d8edb2aaee455e1)
![{\displaystyle {\mathrm {BaS} {}+{}2\,\mathrm {HCl} {}\mathrel {\longrightarrow } {}\mathrm {BaCl} {\vphantom {A}}_{\smash[{t}]{2}}{}+{}\mathrm {H} {\vphantom {A}}_{\smash[{t}]{2}}\mathrm {S} }}](https://wikimedia.org/api/rest_v1/media/math/render/svg/f41174708049723f301c2fa276b84926ba7d63f3)
Rujukan
- ^ Handbook of Chemistry and Physics, 71st edition, CRC Press, Ann Arbor, Michigan, 1990.
- ^ a b c NIOSH Pocket Guide to Chemical Hazards. "#0045" (dalam bahasa Inggeris). National Institute for Occupational Safety and Health (NIOSH).
- ^ a b "Barium (soluble compounds, as Ba)". Immediately Dangerous to Life or Health Concentrations (IDLH). Institut Kebangsaan untuk Keselamatan dan Kesihatan Pekerjaan (NIOSH).
- ^ Kresse, Robert; Baudis, Ulrich; Jäger, Paul; Riechers, H. Hermann; Wagner, Heinz; Winkler, Jocher; Wolf, Hans Uwe (2007). "Barium and Barium Compounds". Dalam Ullman, Franz (penyunting). Ullmann's Encyclopedia of Industrial Chemistry. Wiley-VCH. doi:10.1002/14356007.a03_325.pub2.
- ^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (ed. kedua). Butterworth-Heinemann. ISBN 978-0-08-037941-8.
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