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Natrium bromida

Natrium bromida
Model 3D natrium bromida
Bubuk natrium bromida
Nama
Nama IUPAC
Natrium bromida
Penanda
Model 3D (JSmol)
3DMet {{{3DMet}}}
ChEMBL
ChemSpider
Nomor EC
Nomor RTECS {{{value}}}
UNII
  • InChI=1S/BrH.Na/h1H;/q;+1/p-1 YaY
    Key: JHJLBTNAGRQEKS-UHFFFAOYSA-M YaY
  • InChI=1/BrH.Na/h1H;/q;+1/p-1
    Key: JHJLBTNAGRQEKS-REWHXWOFAR
  • [Na+].[Br-]
Sifat
BrNa
Massa molar 102,89 g·mol−1
Penampilan Bubuk putih, higroskopik
Densitas 3.21 g/cm3 (anhidrat)
2.18 g/cm3 (dihidrat)
Titik lebur 747 °C (1.377 °F; 1.020 K)
(anhidrat)
36 °C (97 °F; 309 K)
(dihidrat) berdekomposisi[1]
Titik didih 1.390 °C (2.530 °F; 1.660 K) [1]
71.35 g/100 mL (−20 °C)
79.52 g/100 mL (0 °C)
94.32 g/100 mL (25 °C)[2]
104.9 g/100 mL (40 °C)
116.2 g/100 mL (100 °C)[3]
Kelarutan Dapat larut dalam alkohol, amonia, piridin, hidrazin, SO2, amin
Tidak dapat larut dalam aseton, asetonitril[2]
Kelarutan dalam Metanol 17.3 g/100 g (0 °C)
16.8 g/100 g (20 °C)
16.1 g/100 g (40 °C)
15.3 g/100 g (60 °C)[2]
Kelarutan dalam Etanol 2.45 g/100 g (0 °C)
2.32 g/100 g (20 °C)
2.29 g/100 g (30 °C)
2.35 g/100 g (70 °C)[2]
Kelarutan dalam Asam format 19.3 g/100 g (18 °C)
19.4 g/100 g (25 °C)[2]
Kelarutan dalam Gliserol 38.7 g/100 g (20 °C)[2]
Kelarutan dalam Dimetilformamida 3.2 g/100 g (10.3 °C)[2]
Tekanan uap 1 torr (806 °C)
5 torr (903 °C)[1]
−41.0·10−6 cm3/mol
Konduktivitas termal 5.6 W/m·K (150 K)[4]
Indeks bias (nD) 1.6428 (24 °C)
nKrF = 1.8467 (24 °C)
nHe–Ne = 1.6389 (24 °C)[5]
Viskositas 1.42 cP (762 °C)
1.08 cP (857 °C)
0.96 cP (937 °C)[2]
Struktur
Cubic
a = 5.97 Å[4]
Termokimia
Kapasitas kalor (C) 51.4 J/mol·K[2]
Entropi molar standar (So) 86.82 J/mol·K[2]
Entalpi pembentukan standarfHo) −361.41 kJ/mol[2]
Energi bebas GibbsfG) −349.3 kJ/mol[2]
Bahaya
Lembar data keselamatan External MSDS
Frasa-R R36
Frasa-S S2, S24/25, S46
Titik nyala 800 °C (1.470 °F; 1.070 K)
Dosis atau konsentrasi letal (LD, LC):
3500 mg/kg (tikus, lewat mulut)
Senyawa terkait
Anion lain
Natrium fluorida
Natrium klorida
Natrium iodida
Natrium astatida
Kation lainnya
Litium bromida
Kalium bromida
Rubidium bromida
Caesium bromida
Francium bromida
Kecuali dinyatakan lain, data di atas berlaku pada suhu dan tekanan standar (25 °C [77 °F], 100 kPa).
N verifikasi (apa ini YaYN ?)
Referensi

Natrium bromida adalah senyawa anorganik dengan rumus NaBr. Senyawa ini merupakan senyawa padat kristalin berwarna putih yang menyerupai natrium klorida. Senyawa ini sering digunakan untuk memperoleh ion bromida.[7]

Natrium bromida dibuat dengan mereaksikan natrium hidroksida dengan hidrogen bromida. Senyawa ini juga dapat digunakan untuk membuat unsur brom; hal ini dapat d ilakukan dengan mereaksikan natrium bromida dengan klor:

2 NaBr + Cl2 → Br2 + 2 NaCl

Manfaat

Natrium bromida dapat dimanfaatkan sebagai obat antikonvulsan. Senyawa ini juga digunakan bersama dengan klor sebagai disinfektan di kolam renang. Selain itu, di bidang perminyakan, natrium bromida digunakan untuk menyiapkan cairan padat yang digunakan di sumur minyak.

Referensi

  1. ^ a b c Pradyot, Patnaik (2003). Handbook of Inorganic Chemicals. The McGraw-Hill Companies, Inc. ISBN 0-07-049439-8. 
  2. ^ a b c d e f g h i j k l http://chemister.ru/Database/properties-en.php?dbid=1&id=714
  3. ^ Seidell, Atherton; Linke, William F. (1919). Solubilities of Inorganic and Organic Compounds (edisi ke-2nd). D. Van Nostrand Company. 
  4. ^ a b "Sodium Bromide (NaBr)". korth.de. Korth Kristalle GmbH. Diarsipkan dari versi asli tanggal 2014-07-14. Diakses tanggal 2014-06-11. 
  5. ^ Polyanskiy, Mikhail. "Refractive index of NaBr (Sodium bromide) - Li". refractiveindex.info. Diakses tanggal 2014-06-11. 
  6. ^ Kesalahan pengutipan: Tag <ref> tidak sah; tidak ditemukan teks untuk ref bernama scl
  7. ^ Michael J. Dagani, Henry J. Barda, Theodore J. Benya, David C. Sanders "Bromine Compounds" in Ullmann's Encyclopedia of Industrial Chemistry Wiley-VCH, Weinheim, 2000. doi:10.1002/14356007.a04_405

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