فلوريد المنغنيز الثنائي
Manganese(II) fluoride is the chemical compound composed of manganese and fluoride with the formula MnF2. It is a light pink solid, the light pink color being characteristic for manganese(II) compounds. It is made by treating manganese and diverse compounds of manganese(II) in hydrofluoric acid. Like some other metal difluorides, MnF2 crystallizes in the rutile structure, which features octahedral Mn centers.[3]
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| اسم أيوپاك
Manganese(II) fluoride
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3D model (JSmol)
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| ChemSpider | |
| ECHA InfoCard | 100.029.054 
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PubChem CID
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| UNII | |
CompTox Dashboard (EPA)
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| InChI | InChI={{{value}}} |
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| الخصائص | |
| الصيغة الجزيئية | MnF2 |
| كتلة مولية | 92.934855 g/mol |
| المظهر | pale pink crystalline |
| الكثافة | 3.98 g/cm3[1] |
| نقطة الانصهار | |
| نقطة الغليان | |
| قابلية الذوبان في الماء | 1.02 g/100 ml |
| القابلية المغناطيسية | +10,700·10−6 cm3/mol |
| المخاطر[2] | |
| ن.م.ع. مخطط تصويري | 
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| ن.م.ع. كلمة الاشارة | Warning |
| H302, H312, H315, H319, H332, H335 | |
| P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P312, P304+P340, P305+P351+P338, P312, P321, P322, P330, P332+P313, P337+P313, P362, P363, P403+P233, P405, P501 | |
| نقطة الوميض | non-flammable |
| مركبات ذا علاقة | |
أنيونات أخرى
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Manganese(II) chloride Manganese(II) bromide Manganese(II) iodide |
كاتيونات أخرى
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Technetium(VI) fluoride Rhenium(VII) fluoride Manganese(III) fluoride Manganese(IV) fluoride |
ما لم يُذكر غير ذلك، البيانات المعطاة للمواد في حالاتهم العيارية (عند 25 °س [77 °ف]، 100 kPa). | |
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Uses
MnF2 is used in the manufacture of special kinds of glass and lasers.[4] It is a canonical example of uniaxial antiferromagnet (with Neel temperature of 68 K)[5] which has been experimentally studied since early on.[6]
References
- ^ Maurice Griffel; J. W. Stout (1950). "Preparation of Single Crystals of Manganous Fluoride. The Crystal Structure from X-Ray Diffraction. The Melting Point and Density". Journal of the American Chemical Society (in English). 72 (10): 4351–4353. doi:10.1021/ja01166a004.
{{cite journal}}: CS1 maint: unrecognized language (link) - ^ "339288 Manganese(II) fluoride 98%". Sigma-Aldrich. Retrieved 2008-06-18.
- ^ Stout, J. W.; Reed, Stanley A. (1954). "The Crystal Structure of MnF2, FeF2, CoF2, NiF2 and ZnF2". J. Am. Chem. Soc. 76 (21): 5279–5281. doi:10.1021/ja01650a005.
- ^ Ayres, D. C.; Hellier, Desmond (1997). Dictionary of Environmentally Important Chemicals. CRC Press. p. 195. ISBN 0-7514-0256-7. Retrieved 2008-06-18.
- ^ Felcher, G. P; Kleb, R (20 November 1996). "Antiferromagnetic domains and the spin-flop transition of MnF 2". Europhysics Letters (EPL). 36 (6): 455–460. Bibcode:1996EL.....36..455F. doi:10.1209/epl/i1996-00251-7. S2CID 250849056.
- ^ Stout, J. W.; Matarrese, L. M. (1 January 1953). "Magnetic Anisotropy of the Iron-Group Fluorides". Reviews of Modern Physics. 25 (1): 338–343. Bibcode:1953RvMP...25..338S. doi:10.1103/RevModPhys.25.338.