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Magnesium chloride
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Name

Magnesium chloride

 EINECS 232-094-6
CAS No. 7786-30-3 Density 2.32 g/mL at 25 °C(lit.)
PSA 0.00000 LogP -5.99200
Solubility 400 g/L (20 °C) in water Melting Point 714 °C(lit.)
Formula Cl2Mg Boiling Point 1412 °C
Molecular Weight 95.211 Flash Point N/A
Transport Information N/A Appearance white powder
Safety 26-36-24/25-22-36/37-39 Risk Codes 36/37/38-43-36/37
Molecular Structure Molecular Structure of 7786-30-3 (Magnesium chloride) Hazard Symbols IrritantXi
Synonyms

Magnesiumchloride (6CI,7CI,8CI);Aerotex Accelerator MX;C-TEK;Catalyst G;Ekimac;FIX-Mg;Freecat MX;HMC 23D;Magnesium dichloride;Magnesium(II) chloride;Magnogene;NSC 529832;TMT 2;White Nigari NS;Magnesium chloride anhydrous;

Article Data 343

Magnesium chloride Synthetic route

Mg(2+)*2Mo(6+)*2Cl(1-)*6O(2-)*4C4H8O=[Mg(ClMoO3)2(C4H8O)4]

A

molybdenum(VI) oxide

B

7786-30-3

magnesium chloride

Conditions
ConditionsYield
In tetrahydrofuran Ar atm.; hot THF;A 100%
B 100%
7439-95-4

magnesium

7646-85-7

zinc(II) chloride

7786-30-3

magnesium chloride

Conditions
ConditionsYield
In melt melting the starting materials in an evacuated silica ampoule at 900°C for 48 h, cracking the ampoule under Ar;95%
In neat (no solvent) reduction of molten ZnCl2 with Mg forming MgCl2;;
In neat (no solvent) reduction of molten ZnCl2 with Mg forming MgCl2;;
10026-11-6

zirconium(IV) chloride

7439-95-4

magnesium

A

7440-67-7

zirconium

B

7786-30-3

magnesium chloride

Conditions
ConditionsYield
In melt heating at 800°C under inert gas in a closed vessel, Kroll-process; apparatus described;; separation of Mg and MgCl2 by vacuum destillation;;A 93%
B n/a
In melt heating at 800°C under inert gas in a closed vessel, Kroll-process; apparatus described;; separation of Mg and MgCl2 by vacuum destillation;;A 93%
B n/a

magnesium silicide

ammonium chloride

silicon nitride

B

7664-41-7

ammonia

C

1333-74-0

hydrogen

D

7786-30-3

magnesium chloride

Conditions
ConditionsYield
In neat (no solvent) High Pressure; mixed, sealed in autoclave under Ar, heated at 450, 500, 550, and 600 °C for 10 h; washed with water, dried in vac. at 70 °C for 12 h; powder XRD;A 93%
B n/a
C n/a
D n/a
...Expand
194354-14-8

dichlorobis(3,5-di-tert-butylpyrazolylato)titanium(IV)

676-58-4

methylmagnesium chloride

A

222026-71-3

dimethylbis(3,5-di-tert-butylpyrazolylato)titanium(IV)

B

7786-30-3

magnesium chloride

Conditions
ConditionsYield
In tetrahydrofuran; hexane Ar-atmosphere; MeMgCl soln. (THF) addn. (0°C), stirring (room temp., 20 h), evapn. (reduced pressure); extg. (hexane), filtering, evapn. (reduced pressure); elem. anal.;A 93%
B n/a
13170-43-9

(trimethylsilyl)methylmagnesium chloride

7721-01-9

tantalum pentachloride

594-09-2

trimethylphosphane

((CH3)3SiCH2)3Ta(P(CH3)3)(CHSi(CH3)3)

B

7786-30-3

magnesium chloride

Conditions
ConditionsYield
In diethyl ether; hexane under N2 atm. slurry TaCl5 in hexane at -20°C was treated dropwise with Me3SiCH2MgCl in Et2O, solvent was removed in vacuo, residue was taken up in hexane at 0°C and filtered, PMe3 was added and heated to 50°C for 1 h; soln. was filtered, concd. and cooled to -20°C;A 92%
B n/a
154005-14-8, 141724-21-2, 162429-20-1, 100080-82-8, 112243-78-4

rac-ethanediyl-bis(1-indenyl)zirconium dichloride

75-16-1

methylmagnesium bromide

A

rac-ethylenebis(1-indenyl)zirconium dimethyl

B

7786-30-3

magnesium chloride

Conditions
ConditionsYield
In 1,4-dioxane; diethyl ether; hexane (N2); dioxane was added to 3 M soln. MeMgBr in hexane and Et2O, stirred for 1 h, filtered, filtrate was added to soln. of zirconium complex in Et2O at -78°C, warmed to room temp. overnight; evapd., dissolved in benzene, filtered, evapd. in vac., crystd. from toluene/hexanes;A 91%
B n/a
925-90-6

ethylmagnesium bromide

palladium dichloride

A

74-84-0

ethane

B

74-85-1

ethene

C

7440-05-3

palladium

D

magnesium bromide

E

7786-30-3

magnesium chloride

Conditions
ConditionsYield
In tetrahydrofuran To a soln. of anhydrous salt is added C2H5MgBr at 20°C with stirring. The reaction mixture is left for 5 - 6 h at room temp.; decantation, washing with THF, water and ethanol; electron diffraction;A n/a
B n/a
C 90%
D n/a
E n/a
...Expand
185154-26-1

bis(η5-tetramethyl(trimethylsilyl)cyclopentadienyl)titanium dichloride

7439-95-4

magnesium

14630-40-1

Bis(trimethylsilyl)ethyne

A

195259-28-0

(η2-bis(trimethylsilyl)ethyne)bis(η5-tetramethyl(trimethylsilyl)cyclopentadienyl)titanium(II)

B

7786-30-3

magnesium chloride

Conditions
ConditionsYield
In tetrahydrofuran -18°C (40 h), filtering, evapn. (vac.); extg. (hexane), MgCl2 pptn. (-5°C, overnight), concg., crystn. (-18°C, overnight); elem. anal.;A 80%
B n/a
7440-55-3

gallium

7439-95-4

magnesium

74-88-4

methyl iodide

A

7786-30-3

magnesium chloride

B

1445-79-0

trimethyl gallium

Conditions
ConditionsYield
In neat (no solvent) inert gas atmosphere; mixing, heating in autoclave (100 - 160°C, stirring, 12 h); distillation;A n/a
B 65%

Magnesium chloride Chemical Properties

Molecule structure of Magnesium chloride anhydrous (CAS NO.7786-30-3):

IUPAC Name: Magnesium dichloride 
Molecular Weight: 95.211 g/mol
Molecular Formula: Cl2Mg 
Density: 2.32 g/mL at 25 °C(lit.)
Melting Point: 714 °C(lit.)
Boiling Point: 1412 °C
Refractive Index: n20/D 1.336
Storage Temp.: 2-8 °C
Water Solubility: 400 G/L (20 °C)
Sensitive: hygroscopic
H-Bond Acceptor: 2
Exact Mass: 93.922747
MonoIsotopic Mass: 93.922747
Heavy Atom Count: 3
Complexity: 2.8
Canonical SMILES: [Mg+2].[Cl-].[Cl-]
InChI: InChI=1S/2ClH.Mg/h2*1H;/q;;+2/p-2
InChIKey: TWRXJAOTZQYOKJ-UHFFFAOYSA-L
EINECS: 232-094-6
Product Categories: Inorganics;Crystal Grade Inorganics;Inorganic Salts;Magnesium Salts;MagnesiumMetal and Ceramic Science;Salts;Synthetic Reagents;G - M;Salt Solutions;Volumetric Solutions;PCR OptimizationMolecular Biology;PCR Reaction Components;PCR/Amplification;Optimization Reagents;BioUltraProtein Structural Analysis;DNA&RNA Purification;Molecular Biology;Molecular Biology Reagents;Optimization ReagentsMolecular Biology;Reagents;X-Ray Crystallography;BiochemicalsSynthetic Reagents;Magnesium;Companion Products and ReagentsSynthetic Reagents;Insect Platform;Serum-free Media

Magnesium chloride Uses

 Magnesium chloride anhydrous (CAS NO.7786-30-3) is used for the manufacture of metal magnesium, disinfectants, fire extinguishing agents, frozen brine, ceramics and also used in flipper fabric, paper making, and in the manufacture of oxychloride cement, etc.

Magnesium chloride Production

In the Dow process, Magnesium chloride anhydrous is regenerated from magnesium hydroxide using hydrochloric acid:
Mg(OH)2(s) + 2 HCl → MgCl2(aq) + 2 H2O(l)
It can also be prepared from magnesium carbonate by a similar reaction.

Magnesium chloride Toxicity Data With Reference

1.    

mmo-omi 8000 ppm

     APMBAY    Applied Microbiology. 6 (1958),45.
2.    

cyt-hmn:hla 2 mmol/L

     JCLLAX    Journal of Cellular Physiology. 78 (1971),217.
3.    

dns-rat-ipr 2500 µmol/kg

     JOENAK    Journal of Endocrinology. 65 (1975),45.
4.    

dni-rat:lvr 3300 µmol/L

     BIJOAK    Biochemical Journal. 146 (1975),697.
5.    

oms-mus:ast 4 mmol/L

     AMOKAG    Acta Medicia Okayama. 33 (1979),141.
6.    

orl-rat LD50:2800 mg/kg

     JPETAB    Journal of Pharmacology and Experimental Therapeutics. 35 (1929),1.
7.    

ipr-rat LDLo:225 mg/kg

     JPETAB    Journal of Pharmacology and Experimental Therapeutics. 35 (1929),1.
8.    

scu-rat LDLo:900 mg/kg

     ENDOAO    Endocrinology (Baltimore). 24 (1939),523.
9.    

ipr-mus LD50:1338 mg/kg

     COREAF    Comptes Rendus Hebdomadaires des Seances de lAcademie des Sciences. 256 (1963),1043.
10.    

ivn-mus LD50:14 mg/kg

     TXAPA9    Toxicology and Applied Pharmacology. 22 (1972),150.
11.    

 

Magnesium chloride Consensus Reports

Reported in EPA TSCA Inventory. EPA Genetic Toxicology Program.

Magnesium chloride Safety Profile

Hazard Codes: IrritantXi
Risk Statements: 36/37/38-43-36/37 
R36/37/38:Irritating to eyes, respiratory system and skin. 
R43:May cause sensitization by skin contact. 
R36/37:Irritating to eyes and respiratory system.
Safety Statements: 26-36-24/25-22-36/37-39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing. 
S24/25:Avoid contact with skin and eyes. 
S22:Do not breathe dust. 
S36/37:Wear suitable protective clothing and gloves. 
S39:Wear eye / face protection.
WGK Germany: 1
RTECS: OM2800000
F: 3-10
Poison by intraperitoneal and intravenous routes. Moderately toxic by ingestion and subcutaneous routes. Human mutation data reported. In humid environments it causes steel to rust very rapidly. When heated to decomposition it emits toxic fumes of Cl−. See also MAGNESIUM.

Magnesium chloride Specification

 Magnesium chloride anhydrous (CAS NO.7786-30-3) is also named as Aerotex Accelerator MX ; CCRIS 3961 ; Caswell No. 531 ; DUS-top ; EPA Pesticide Chemical Code 013902 ; HSDB 657 ; Magnesium chloride ; Magnesium chloride (Mg2Cl4) ; Magnesium chloride (MgCl2) ; Magnogene ; NSC 529832 ; TMT 2 ; UNII-59XN63C8VM . Magnesium chloride anhydrous (CAS NO.7786-30-3) is colorless, odorless and a small piece, particle, block-type monoclinic crystal. Its various hydrates MgCl2(H2O)x. These salts are typical ionic halides, being highly soluble in water.

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