氟化镁 | 7783-40-6

• 物质功能分类: 无机化工 - 无机盐 - 金属卤化物及卤酸盐
• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 碱土金属盐
• 中文名称: 氟化镁
• 中文别名: 二氟化镁；氟化镁水合物
• 英文名称: Magnesium difluoride
• 英文别名: magnesium;difluoride
• CAS: 7783-40-6
• 化学式: F2Mg
• 分子量: 62.302
• InChiKey: ORUIBWPALBXDOA-UHFFFAOYSA-L

物化性质

• 熔点：
  1263 °C (lit.)
• 沸点：
  2227 °C/1 atm (lit.)
• 密度：
  3.15 g/mL at 25 °C (lit.)
• 暴露限值：
  a/nm
• 物理描述：
  OtherSolid; PelletsLargeCrystals
• 稳定性/保质期：
  在电光下加热时会呈现弱紫色荧光，其晶体具有良好的偏振作用，特别适于紫外和红外光谱分析。在25℃时，它在100克水中溶解度为0.013克。该物质微溶于稀酸，并且容易溶解于硝酸中。

计算性质

• 辛醇/水分配系数(LogP)：
  -6.37
• 重原子数：
  3
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  2

安全信息

• TSCA：
  Yes
• 危险品标志：
  Xi
• 安全说明：
  S26,S37/39
• 危险类别码：
  R36/37/38
• WGK Germany：
  3
• 海关编码：
  28261900
• RTECS号：
  OM3325000

SDS

Name:	Magnesium Fluoride 98+% Material Safety Data Sheet
Synonym:	Afluon; Irtran 1; Magnesium fluorure; Sellait
CAS:	7783-40-6

Section 1 - Chemical Product MSDS Name:Magnesium Fluoride 98+% Material Safety Data Sheet
Synonym:Afluon; Irtran 1; Magnesium fluorure; Sellait

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Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS

CAS#	Chemical Name	content	EINECS#
7783-40-6	Magnesium fluoride, 99.999%		231-995-1

Hazard Symbols: None Listed.
Risk Phrases: None Listed.

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Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
The toxicological properties of this material have not been fully investigated.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation.
Ingestion:
May cause irritation of the digestive tract.
Inhalation:
May cause respiratory tract irritation.
Chronic:
No information found.

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Section 4 - FIRST AID MEASURES
Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Do not induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Get medical aid immediately.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively.

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Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.
Extinguishing Media:
Use water spray, dry chemical, carbon dioxide, or chemical foam.

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Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Clean up spills immediately, observing precautions in the Protective Equipment section. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal.

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Section 7 - HANDLING and STORAGE
Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
Storage:
Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.

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Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 7783-40-6: United Kingdom, WEL - TWA: (listed as fluorides, inorganic): 2.5 mg/m3 TWA (as F) United Kingdom, WEL - STEL: (listed as fluorides, inorganic): 6.2 mg/m3 STEL (as F) United States OSHA: 2.5 mg/m3 TWA (as F) (listed under Fluorides).2.5 mg/m3 TWA (as F) (listed under Fluorides).
Belgium - TWA: (listed as fluorides, inorganic): 2.5 mg/m3 VLE (a France - VME: (listed as fluorides): 2.5 mg/m3 VME (as F) Germany: (listed as fluorides): 2.5 mg/m3 VME (as F) Malaysia: (listed as fluorides): 2.5 mg/m3 TWA (as F) Netherlands: (listed as fluorides): 3.5 mg/m3 STEL (as F) Russia: 2.5 mg/m3 TWA Russia: 0.5 mg/m3 STEL Spain: (listed as fluorides, inorganic): 2.5 mg/m3 VLA-ED (except uranium hexafluoride, as F) Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves and clothing to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

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Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Solid
Color: off-white
Odor: None reported.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 2239 deg C @ 760.00mmHg
Freezing/Melting Point: 1263 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: Slightly soluble.
Specific Gravity/Density:
Molecular Formula: F2Mg
Molecular Weight: 62.31

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Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials:
Strong oxidizing agents, strong acids.
Hazardous Decomposition Products:
Irritating and toxic fumes and gases, fluoride fumes.
Hazardous Polymerization: Has not been reported.

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Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 7783-40-6: OM3325000 LD50/LC50:
CAS# 7783-40-6: Oral, rat: LD50 = 2330 mg/kg.
Carcinogenicity:
Magnesium fluoride, 99.999% - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

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Section 12 - ECOLOGICAL INFORMATION

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Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.

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Section 14 - TRANSPORT INFORMATION

IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.

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Section 15 - REGULATORY INFORMATION

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
WGK (Water Danger/Protection)
CAS# 7783-40-6: 1
Canada
CAS# 7783-40-6 is listed on Canada's DSL List.
CAS# 7783-40-6 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 7783-40-6 is listed on the TSCA inventory.

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SECTION 16 - ADDITIONAL INFORMATION
N/A

制备方法与用途

理化性质

氟化镁（化学式：MgF₂）是一种无色正四面体晶体或白色粉末，分子量为62.31。在灯光照射下会发出紫色荧光。它微溶于硝酸、难溶于水和乙醇，熔点为1248℃，沸点为2239℃，相对密度为3.148。氟化镁有毒，可通过碳酸镁或氧化镁与氢氟酸作用制得，也可由硫酸镁与氟化钠反应制备。该物质广泛应用于光谱试剂、光学玻璃、陶瓷以及阴极射线屏的荧光材料等领域，同时也用于电解铝工业。

氟化镁镀膜

氟化镁是一种优质的镀膜材料。晶体结构属于四方晶系，熔点为1255℃，具有高硬度和良好的机械性能，化学稳定性强，不易潮解和腐蚀，在真空紫外波段有较高的透过率（在170nm下透光率仍超过80%）。氟化镁被广泛应用在光纤通信、军工领域以及各种光学元件中。

水中溶解度

每100毫升水中溶解的氟化镁量如下：

• 20℃时：7.325×10^-3克

毒性

操作人员需穿戴必要的防护用品，因为氟化镁有毒。

化学性质

氟化镁为无色四方晶系晶体或粉末，无味。它能溶于硝酸，微溶于稀酸，并且难以溶解于水和醇中。

用途

氟化镁广泛应用于光学玻璃、陶瓷以及电子工业领域：

• 制造陶器
• 玻璃制品
• 助溶剂用于冶炼镁金属
• 镜头及滤光器的涂层材料
• 阴极射线屏的荧光材料
• 光学透镜的反折射剂
• 焊接剂
• 钛颜料的涂着剂

生产方法 碳酸镁法

在衬铅反应器中，加入过量氢氟酸，在搅拌下缓慢加入菱镁矿浆。于90～95℃条件下进行反应生成氟化镁，再经过滤、洗涤及干燥处理（105℃左右）后粉碎制得成品。

化学方程式如下： [ \text{MgCO}_3 + 2\text{HF} \rightarrow \text{MgF}_2 + \text{H}_2\text{O} + \text{CO}_2↑ ]

反应信息

• 作为反应物：
  描述：

  氟化镁 生成 氢氟酸
  参考文献：
  名称：

  XIDAKA, MITITAKA

  摘要：

  DOI：
• 作为产物：
  描述：

  氢氟酸 生成 氟化镁
  参考文献：
  名称：

  KINDIG, JAMES K.;REYNOLDS, JAMES E.

  摘要：

  DOI：

文献信息

• Method of producing protective coatings that are resistant to corrosion
  申请人：Electro Chemical Engineering GmbH

  公开号：US04978432A1

  公开（公告）日：1990-12-18

  A method of producing protective coatings that are resistant to corrosion and wear on magnesium and magnesium alloys by anodic oxidation. In order to obtain coatings that have little or no inherent color, that can be easily colored, and that provide a satisfactory adhesive base for lacquering or subsequent processing, a low-alkali aqueous electrolyte bath containing (a) borate or sulfonate anions and (b) phosphate and fluoride or chloride ions and adjusted to a pH of 5 to 11 and preferably 8 to 9 is employed. A direct current is applied and is either briefly turned off or its polarity incompletely reversed to allow the formation of manganese phosphate and magnesium fluoride or magnesium chloride and optionally magnesium aluminate.

  一种通过阳极氧化在镁和镁合金上制备耐腐蚀和耐磨保护涂层的方法。为了获得具有很少或没有固有颜色、易于着色并提供满意的粘接基础用于清漆或后续加工的涂层，采用低碱度水性电解质浴，其中包含（a）硼酸盐或磺酸盐阴离子和（b）磷酸盐和氟化物或氯化物离子，并调节至pH 5至11，最好是8至9。施加直流电并且要么短暂关闭电源，要么电极性不完全反转，以允许锰磷酸盐和镁氟化物或镁氯化物的形成，可选择加入镁铝酸盐。
• SMIRNOVA, O. M.;MOGILKO, EH. T.;PERUNINA, L. M.;SEREDENKO, A. S.;PANTALER+, SB. NAUCH. TR.,(1988) N2, S. 22-25
  作者：SMIRNOVA, O. M.、MOGILKO, EH. T.、PERUNINA, L. M.、SEREDENKO, A. S.、PANTALER+

  DOI：——

  日期：——
• DIDASH, I. N.;SEREDENKO, A. S.;SMIRNOVA, O. M., SB. NAUCH. TR.,(1988) N2, S. 132-134
  作者：DIDASH, I. N.、SEREDENKO, A. S.、SMIRNOVA, O. M.

  DOI：——

  日期：——
• XOSAKA, KODZI
  作者：XOSAKA, KODZI

  DOI：——

  日期：——
• PROTSYUK, A. P.;SYRKIN, L. N., TEZ. DOKL. BCEC. SEMIN. ZHOSFAT. MATER. ZH. 1, APATITY,(1990) S. 62
  作者：PROTSYUK, A. P.、SYRKIN, L. N.

  DOI：——

  日期：——

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