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Lithium bromide

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Name

Lithium bromide

EINECS 231-439-8
CAS No. 7550-35-8 Density 1.57 g/mL at 25 °C
PSA 0.00000 LogP -2.99600
Solubility 61 g/100 mL (25 °C) in water Melting Point 550 °C(lit.)
Formula BrLi Boiling Point 1265 °C
Molecular Weight 86.845 Flash Point 1265 °C
Transport Information UN 2056 3/PG 2 Appearance White powder
Safety 26 Risk Codes 22-36/37-12-36/37/38
Molecular Structure Molecular Structure of 7550-35-8 (Lithium bromide) Hazard Symbols HarmfulXn, IrritantXi, HighlyF+
Synonyms

Lithium bromide;lithiummonobromide;lithiun bromide;LiBr;thiuM broMide;ithium bromide;LITHIUM HALIDE;Lithium Bromide 99.;Lithiumbromide;Lithiumbromid;

Article Data 90

Lithium bromide Synthetic route

lithium tetra-tert-butoxytitanate * THF

t-BuOMgBr

A

magnesium penta-tert-butoxytitanate

B

7550-35-8

lithium bromide

Conditions
ConditionsYield
In tetrahydrofuran Ar atmosphere; 20°C; solvent removal (vacuum), extraction (hexane), crystn. (20°C, 40 h); elem. anal.;A 25%
B 100%

lithium tetra-tert-butoxytitanate * THF

magnesium bromide

A

magnesium bis(tetra-tert-butoxytitanate)

B

7550-35-8

lithium bromide

Conditions
ConditionsYield
In tetrahydrofuran Ar atmosphere; 20°C; solvent removal (vacuum), extraction (hexane), crystn. on cooling (-78°C); elem. anal.;A 33%
B 100%
14516-54-2

bromopentacarbonylmanganese(I)

59501-96-1

[C6H5S(O)CH2](1-)*Li(1+)=[C6H5S(O)CH2]Li

A

10170-69-1

dimanganese decacarbonyl

B

1193-82-4

racemic methyl phenyl sulfoxide

C

882-33-7

diphenyldisulfane

D

7550-35-8

lithium bromide

Conditions
ConditionsYield
In tetrahydrofuran mixing reactants in THF at -78°C, slow warming to room temp.; evapn. in vac., extn. with pentane, ether and finally acetone or CH2Cl2, concn., chromy. on Al2O3, purifn. by crystn., distn. or sublimation;A 87%
B 41%
C 40%
D 93%

1-lithio-2,4,6-trimethylborazine

7789-60-8

phosphorus tribromide

A

1064704-42-2

bromobis(2,4,6-trimethylborazinyl)phosphane

B

7550-35-8

lithium bromide

Conditions
ConditionsYield
In diethyl ether; hexane under inert gas; soln. of borazine (3.26 mmol) in mixt. of hexane (10 ml) and Et2O (10 ml) added to soln. of PBr3 (1.63 mmol) in hexane; stirredovernight; LiBr removed by filtration; evapd. (vac.) by 2/3 of volume; kept (5°C, wk); elem. anal.;A 80%
B 90%
768-66-1

2,2,6,6-tetramethyl-piperidine

13450-88-9

gallium(III) bromide

A

bis(2,2,6,6-tetramethylpiperidino)gallium bromide

B

7550-35-8

lithium bromide

Conditions
ConditionsYield
With n-butyllithium In diethyl ether; hexane under inert atmosphere, piperidine in hexane reacted with n-BuLi in hexane, dropwise addn. of GaBr3 in diethyl ether at room temp., refluxed for 30 min, stirred at room temp. for 12 h; evapn. of solvent, taken up in pentane, filtered, evapd. in vac.; elem. anal.;A 88%
B n/a

C14H16NO2(1+)*Br(1-)

33454-82-9

lithium trifluoromethanesulfonate

A

C14H16NO2(1+)*CF3O3S(1-)

B

7550-35-8

lithium bromide

Conditions
ConditionsYield
In water at 20℃; for 1h;A 87%
B n/a
101315-57-5

1,2-bis(diethylamino)diboron dibromide

54760-74-6, 98900-11-9

dilithium N,N'-dimethylethylenediaminate

A

158752-93-3

2,3-bis(diethylamino)-1,4-dimethyl-1,4,2,3-diazadiborinane

B

7550-35-8

lithium bromide

Conditions
ConditionsYield
In hexane under N2, addn. of B-compd. in hexane to Li-compd. in hexane at -60°C with stirring, allowed to warm up to room temp., kept for 30 min at reflux; solid material sepd., distd.; elem. anal.;A 86%
B n/a

C13H14NO(1+)*Br(1-)

33454-82-9

lithium trifluoromethanesulfonate

A

C13H14NO(1+)*CF3O3S(1-)

B

7550-35-8

lithium bromide

Conditions
ConditionsYield
In water at 20℃; for 1h;A 85%
B n/a
7727-15-3

aluminium bromide

7412-67-1

neopentyl lithium

A

42916-36-9

tris(neopentyl)aluminium

B

7550-35-8

lithium bromide

Conditions
ConditionsYield
In hexane Addn. of neopentyllithium to a suspn. of AlBr3 in hexane at 0°C in 20 min under protective gas, refluxing (3 h).; Vac. distn. of hexane, sepn. of Al-compd. from LiBr by flask to flask vac. distn. at 120°C. Short-path vac. distn., elem. anal., mol wt.;A 82.3%
B n/a
133911-59-8

1,3-dibromo-1,2,3-tris(dimethylamino)triborane(5)

A

158819-19-3

1,3-bis(tert-butylamino)-1,2,3-tris(dimethylamino)triborane(5)

B

7550-35-8

lithium bromide

Conditions
ConditionsYield
With LiNHCMe3 In toluene anhydrous and oxygen-free condns., addn. of Li-compd. in toluene to a stirred soln. of B-compd. in toluene at -78°C within 10 min, allowed to attain ambient temp., reaction time: 3 h; centrifuged, evapn. of solvent in vac., crystn. (pentane/toluene, -78°C); elem. anal.;A 81%
B n/a

Lithium bromide History

Lithium bromide(7550-35-8) was used as a sedative beginning in the early 1900s, but it fell into disfavor in the 1940s when some heart patients died after using it as a salt substitute. Like lithium carbonate and lithium chloride it was used as treatment for bipolar disorder.

Lithium bromide Consensus Reports

Reported in EPA TSCA Inventory.

Lithium bromide Specification

Lithium bromide, with the CAS registry number 7550-35-8, is also named as Lithium monobromide. The product's categories are Inorganics; Crystal Grade Inorganics; Lithium Salts; Lithium Metal and Ceramic Science; Analytical Reagents for General Use; Inorganic Salts; Synthetic Reagents; Essential Chemicals; Reagent Plus; Routine Reagents. It is white powder which is easily soluble in water, slightly soluble in pyridine, in methanol, soluble in alcohol, ether acetone, ethylene glycol and other organic solvents. What's more, it is stable. And the anhydrous form is extremely hygroscopic. Additioanlly, this chemical should be sealed in the container and stored in the ventilate and dry place.

The other characteristics of Lithium bromide can be summarized as: (1)H-Bond Donor: 0; (2)H-Bond Acceptor: 1; (3)Rotatable Bond Count: 0; (4)Exact Mass: 85.934342; (5)MonoIsotopic Mass: 85.934342; (6)Topological Polar Surface Area: 0; (7)Heavy Atom Count: 2; (8)Formal Charge: 0; (9)Complexity: 2; (10)Isotope Atom Count: 0; (11)Covalently-Bonded Unit Count: 2; (12)Density: 3.464 g/cm3; (13)Melting point: 550 °C; (14)Boiling point: 1265 °C.

Preparation of Lithium bromide: It can be obtained by the neutralization reaction of lithium hydroxide and hydrobromic acid. By bleaching, filtration, concentration filtrate, filtration, concentration and crystallization, separation, we can get the product. LiOH+HBr→LiBr+H2O

Uses of Lithium bromide: It is used in air-conditioning systems as desiccant. Otherwise the salt is useful as a reagent in organic synthesis. It is also used in pharmaceutical industry and photographic industry. And it was used as a sedative beginning in the early 1900s, but it fell into disfavor in the 1940s when some heart patients died after using it as a salt substitute.

When you are using this chemical, please be cautious about it as the following:
It is extremely flammable. And it is not only harmful if swallowed, but also irritating to eyes, respiratory system and skin. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

People can use the following data to convert to the molecule structure.
1. SMILES:[Li+].[Br-];
2. InChI:InChI=1/BrH.Li/h1H;/q;+1/p-1;
3. InChIKey:AMXOYNBUYSYVKV-REWHXWOFAS;

The following are the toxicity data which has been tested.

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
guinea pig LD50 intraperitoneal 580mg/kg (580mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 33(10), Pg. 57, 1989.
mouse LD50 intraperitoneal 1160mg/kg (1160mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 33(10), Pg. 57, 1989.
mouse LD50 oral 1840mg/kg (1840mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 33(10), Pg. 57, 1989.
mouse LD50 subcutaneous 1680mg/kg (1680mg/kg)   Russian Pharmacology and Toxicology Vol. 33, Pg. 266, 1970.
rat LD50 oral 1800mg/kg (1800mg/kg)   Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 33(10), Pg. 57, 1989.

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