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Magnesium fluoride

HCID 24546
NotesReactions
Basic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
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Basic information

CAS
7783-40-6
Standard SMILES
[F-].[F-].[Mg+2]
InChIKey
ORUIBWPALBXDOA-UHFFFAOYSA-L
Molecular formula
F2Mg
Average molar mass
62.302 g/mol
Monoisotopic mass
61.981848

Overview

Sellaite is a mineral with formula of MgF2. The IMA symbol is Sel.

Names & identifiers

Preferred name
Magnesium fluoride
IUPAC
magnesium difluoride
English name
Magnesium fluoride
Molecular formula
F2Mg
Molecular weight
62.3

Names & synonyms

AfluonIrtran 1Magnesium fluoride (MgF2)Magnesium fluorureMagnesia Fluorata5N014C7IWURefChem:58725DTXCID1031096231-995-17783-40-6DTXSID7052523Magnesium difluoride
Show more names
irtran1Magnesium fluxmagnesiumfluorureMagnesium fluoridMAGNESIUM FLUOIRDEMagnesiumfluoride2
Magnesium fluorideSellaitemagnesium;difluorideMagnesium fluorure [French]EINECS 231-995-1UNII-5N014C7IWUMagnesium fluoride, anhydrousAluminum chlorohydrate solution

Database identifiers

CAS
7783-40-6
PubChem CID
24546
EC Number
231-995-1

Properties

Computed structural properties

Topological polar surface area
0 Ų
Hydrogen bond donors
0
Hydrogen bond acceptors
2
Rotatable bonds
0
Heavy atoms
3
Formal charge
0
Complexity
2.8

Experimental & physicochemical properties

Chemical ClassesMetals -> Metals, Inorganic Compounds
CosmeticsAntiplaque; Oral care
Density3.148 @25 °C
Boiling Point2227 °C @760 [mm Hg]
Melting Point1263 °C
Food Contact SubstancesFCS -> FDA Inventory of Food Contact Substances Listed in 21 CFR
Physical Description · 2 items

CBI; Large Crystals

Colorless solid with mild violet fluorescence; [Merck Index] White solid that fluoresces under electric light; [Hawley] Off-white odorless chunks; [MSDSonline]

Physicochemical properties

Melting point
1263 °C · 1263 °C (lit.)
Boiling point
2227 °C/1 · 2227 °C/1 atm (lit.)
Density
3.15 g/mL · 3.15 g/mL at 25 °C (lit.)

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

GHS classification

GHS Classification · 5 items

This chemical does not meet GHS hazard criteria for 33.7% (168 of 498) of reports.

Warning

H315 (62.2%): Causes skin irritation [Warning Skin corrosion/irritation]

P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 498 reports by companies from 16 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Regulatory Information · 4 items

Chemical: Magnesium fluoride (MgF2)

Magnesium fluoride (MgF2) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Magnesium fluoride (MgF2) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

REACH registered substance: Magnesium fluoride (EC: 231-995-1)

Magnesium fluoride (MgF2): Does not have an individual approval but may be used under an appropriate group standard

Other Safety InformationIMAP assessments - Magnesium fluoride (MgF2): Human health tier I assessment
Hazards SummaryA strong irritant; [Hawley] An irritant; [MSDSonline] See FLUORIDES.
Hazard Classes and CategoriesSkin Irrit. 2 (62.2%)

Safety & protection

Exposure Control and Personal Protection

Chemistry & industry

Uses & manufacturing

Uses · 3 items

Used in ceramics, single crystal polarizing prisms, lenses, and windows; [Hawley] Used as a flux in metallurgy; Crystals are used in optical applications; Also used with graphite and fluorine to make ternary compounds with high electrical conductivity; [Ullmann]

Metal Preparation and Pouring [Category: Foundry]

Ceramics making [Category: Hobbies]

U.S. Production2023: 75,000 - <500,000 lb
Consumer UsesPigment
Industry UsesFlux agent
Household ProductsInformation on 1 consumer products that contain Magnesium fluoride in the following categories is provided:
Use ClassificationCosmetics -> Antiplaque; Oral care
General Manufacturing Information · 2 items

Paint and Coating Manufacturing

Magnesium fluoride (MgF2): ACTIVE

Applications · 5 items

DescriptionMagnesium fluoride is a by-product of the manufacture of metallic beryllium and uranium. It is a fine white crystalline powder with low chemical reactivity. Magnesium fluoride is used as flux in magnesium metallurgy and in the ceramics industry. Magnesium fluoride may be used for the extraction of aluminum from arc-furnace alloys with Fe, Si, Ti, and C. Optical windows of highly purified magnesium fluoride which transmit light from the vacuum ultraviolet (140 nm) into the infrared (7) are recommended for use as ultraviolet optical components for the use in space exploration. Magnesium fluoride is can be also used as an antireflection coating material having a good antireflection effect and a low refractive index.

Related reactions

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Compound notes

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On this pageBasic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
refractive index
1.365 · 1.365
Flash point
12 °C · 12.00°C
form
random crystals
color
White to off-white
Specific Gravity
3.15 · 3.15
Water Solubility
87 mg/L · 87 mg/L (18 ºC)
Specific Heat Capacity
0.99 J/ · Cp(crystal): 0.99 J/(g·K), at 25℃
Crystal Structure
Tetragonal, Rutile
crystal system
square
Merck
14 · 14,5665
Solubility Product Constant (Ksp)
10.29 · pKsp: 10.29
Space group
42 · P42/mnm
Lattice constant
a/nm
Symbol(GHS)
7 · GHS07
Signal word
Warning
Hazard statements
335 · H335
Precautionary statements
261 · P261-P271-P304+P340+P312-P403+P233-P405-P501
target organs
Respiratory system
PPE
95 · dust mask type N95 (US), Eyeshields, Gloves
Hazard Codes
Xi
Risk Statements
36 · 36/37/38
Safety Statements
26 · 26-36-37/39
WGK Germany
3 · 3
RTECS
3325000 · OM3325000
Hazard Note
Irritant
TSCA
TSCA listed
HS Code
28261900 · 28261900
Storage Class
13 · 13 - Non Combustible Solids
Hazard Classifications
3 · STOT SE 3
Toxicity
1000 orally, · LD in guinea pigs (mg/kg): 1000 orally, 3000 s.c. (Waldbott)
REACH Registrations
Active
· 2 items

Biological Exposure Indices (BEI) [ACGIH] - Fluorides in urine = 2 mg/L prior to shift or 3 mg/L at end of shift; (Repeated measurements recommended.)

1.0 [mg/m3], inhalable fraction, as F[German Research Foundation (DFG)]

Threshold Limit Values (TLV)2.5 [mg/m3], as F
Permissible Exposure Limit (PEL)2.5 [mg/m3], as F
Protective Action Criteria (PAC) · 3 items

5.4 [mg/m3]

59 [mg/m3]

350 [mg/m3]

Safety data

PPE
dust mask type N95 (US), Eyeshields, Gloves
wgk
3
tsca
TSCA listed
rtecs
OM3325000
hs_code
28261900
Toxicity
LD in guinea pigs (mg/kg): 1000 orally, 3000 s.c. (Waldbott)
risk_code
36/37/38
Signal word
Warning
Symbol(GHS)
GHS07
hazard_code
Xi
hazard_note
Irritant
safety_code
26-36-37/39
Storage Class
13 - Non Combustible Solids
target organs
Respiratory system
Hazard statements
H335
REACH Registrations
Active
Hazard Classifications
STOT SE 3
Precautionary statements
P261-P271-P304+P340+P312-P403+P233-P405-P501

UsesIn Mg metallurgy and in the ceramics industry, Magnesium fluoride is used as a flux. Single crystals of alkaline-earth fluorides, such as Magnesium fluoride, are suitable for optical applications because of their large domain of transparency from the ultraviolet to the middle infrared region. Infrared transparent windows may be prepared by hot-pressing Magnesium fluoride powder. Ternary intercalation compounds of graphite with fluorine and Magnesium fluoride have been prepared; these compounds have high electrical conductivity and would therefore have an important potential as cathodes or new electroconductive materials. Finally, the eutectic NaF–MgF2 has been proposed in advanced latent-heat energy storage for solar power systems.

UsesSuitable for vacuum deposition. Magnesium fluoride occurs in nature as the mineral, sellaite. It is used in glass and ceramics. Single crystals are used for polarizing prisms and lenses.

UsesIn the ceramics and glass industry.Magnesium Fluoride is a durable crystal with low absorption, suitable for high-powered laser, space, and other UV applications. MgF2 is also naturally birefringent, making it an ideal material for use where this property can be exploited, such as retardation plates and polarizing elements, particularly in the wavelength range from 0.13-0.30 µm.

UsesMagnesium fluoride (MgF2) is used to polarize corrective lenses of eyeglasses to reduce the glare of sunlight by selecting the orientation of the light waves passing through the lenses. MgF2 is also used to polarize windows, sunglasses, and similar optical items.

Preparation methods · 2 items

PreparationMagnesium fluoride is prepared by treating a magnesium salt solution with hydrofluoric acid or sodium fluoride: MgSO4 + 2HF → MgF2 + 2H+ + SO42– or by adding hydrofluoric acid to magnesium carbonate: MgCO3 + 2HF → MgF2 + CO2 + H2O

PreparationMagnesium fluoride is a colorless salt with the rutile structure. It is formed by reaction of magnesium oxide and HF or magnesium carbonate and NH4F·HF. It is also a by product from the manufacture of elements such as beryllium by reduction of the corresponding fluoride by magnesium metal.

Upstream & downstream products

Upstream raw materials

MagnesiteHydrogen fluoride

Suppliers100 total

国药集团化学试剂有限公司86-21-63210123 · [email protected]
北京华美互利生物化工010-56205725 · [email protected]
上海阿拉丁生化科技股份有限公司400-6206333 13167063860 · [email protected]
合肥翰刚医药科技有限公司+8618062405514 · [email protected]
上海光铧科技有限公司13801626616 · [email protected]
武汉欣扬瑞和化学科技有限公司153-07155313 15307155313 · [email protected]
河北创海生物科技有限公司+86-86-13131129325 · [email protected]
Baoji Guokang Healthchem co.,ltd+8615604608665 15604608665 · [email protected]
Dayang Chem (Hangzhou) Co.,Ltd.+86-0571-88938639 17705817739 · [email protected]
Hebei Yanxi Chemical Co., Ltd.+86-17531190177 · [email protected]
武汉吉业升化工有限公司15387013945 · [email protected]
阿法埃莎(中国)化学有限公司400-6106006 · [email protected]
安耐吉化学&3A(安徽泽升科技股份有限公司)400-0056266 · [email protected]
上海瀚鸿科技股份有限公司021-54306202 13764082696 · [email protected]
武汉丰泰威远科技有限公司027-87465837 19945049750 · [email protected]
天津金汇太亚化学试剂有限公司022-59582624 18622766592 · [email protected]
山东西亚化学有限公司13355009207 13355009207 · [email protected]
玛雅试剂+86 (573) 82222445 (0)18006601000 452520369 · [email protected]
四川库利南科技有限公司400-1166-196 18981987031 · [email protected]
Xiamen AmoyChem Co., Ltd+86-86-5926051114 · [email protected]
常熟市鸿嘉氟科技有限公司0512-52626090 15051765893 · [email protected]
斯百全化学(上海)有限公司021-021-021-67601398-809-809-809 15221380277 · [email protected]
艾科试剂4008-755-333 18080918076 · [email protected]
武汉吉业升化工有限公司15927657268 · [email protected]
北京环宇世纪化学科技有限公司hysj_bj.com
上海将来实业股份有限公司400-0066400 13621662912 · [email protected]
上海将来实业股份有限公司021-61552785 · [email protected]
安徽科迪达化工有限公司0554-2106669 · [email protected]
日照力德士化工有限公司010-51268198 · [email protected]
美岚实业(上海)有限公司021-58958189 · [email protected]
上海爱蝶实业有限公司021-58957966 18930537195 · [email protected]
成都零六生物科技有限公司400-1166-196 13458535857 · [email protected]
广拓化学(上海)有限公司021-60899189-8001 18918189673 · [email protected]
上海创赛科技有限公司400-6087598 15021221957 · [email protected]
上海麦克林生化科技股份有限公司15221275939 15221275939 · [email protected]
上海乾劲化工科技有限公司021-20900665 17321230821 · [email protected]
杭州杰恒化工有限公司0571-87396432 · [email protected]
成都润泽本土化工有限公司13096311329 028-88469284 616445927 · [email protected]
湖北巨胜科技有限公司027-59599241 18871490274 · [email protected]
池州凯隆进出口贸易有限公司[email protected]
Sigma-Aldrich西格玛奥德里奇(上海)贸易有限公司021-61415566 800-8193336 · [email protected]
桦特昇生物科技(武汉)有限公司027-59207879 1972026995 18140587686 · [email protected]
江苏倍达医药科技有限公司0512-63009836 18994340901 · [email protected]
九鼎化学(上海)科技有限公司4009209199 · [email protected]
Henan Alfa Chemical Co., Ltd+8618339805032 · [email protected]
厦门志信化学有限公司+86-5922680277 +86-13806087780 · [email protected]
武汉吉业升化工有限公司15307169873 · [email protected]
成都润泽本土化工有限公司028-88469284 18000562381 · [email protected]
南京艾比克斯生化科技有限公司025-87193546 18652950785 · [email protected]
北京华威锐科化工科技有限公司89508211 18501085097 · [email protected]