Product Name

  • Name

    Lanthanum

  • EINECS 231-099-0
  • CAS No. 7439-91-0
  • Article Data78
  • CAS DataBase
  • Density 6.19 g/mL at 25 °C(lit.)
  • Solubility
  • Melting Point 920 °C(lit.)
  • Formula La
  • Boiling Point 3464 °C(lit.)
  • Molecular Weight 138.905
  • Flash Point
  • Transport Information UN 3264 8/PG 3
  • Appearance solid
  • Safety 26-27-36/37/39-45-33-16-23-43
  • Risk Codes 11-34-23/24/25-14/15
  • Molecular Structure Molecular Structure of 7439-91-0 (Lanthanum)
  • Hazard Symbols FlammableF,ToxicT
  • Synonyms Lanthan;57La;Lanthanum chips;Lanthane;Lanthanum foil;Lantano;Lanthanum ingot;LANTHANUM;
  • PSA 0.00000
  • LogP 0.00000

Synthetic route

lanthanum(III) fluoride
13709-38-1

lanthanum(III) fluoride

lanthanum
7439-91-0

lanthanum

Conditions
ConditionsYield
With lithium In neat (no solvent) reduction at 1000K, under He, Mo-vessel;;98.4%
In neat (no solvent) 1mol I2 per 1.5mol LaF3;; product containing 470ppm C and 213ppm N;;94%
In gas electric discharge in presence of H2;; intermediate formation of LaF indicated by MS;
lanthanum(III) nitrate

lanthanum(III) nitrate

lanthanum
7439-91-0

lanthanum

Conditions
ConditionsYield
In ethylenediamine Electrolysis; 1.77g La/l (in form of nitrate), 250-300VV, 20mA (2.3mA/cm**2);;96.2%
In ethanol Electrolysis; Hg cathode, satd. soln. in abs. ethanol, current density 0.3A/cm**2, 4h; formation of La amalgame;;
lanthanum(III) chloride
10099-58-8

lanthanum(III) chloride

lanthanum
7439-91-0

lanthanum

Conditions
ConditionsYield
With Mg or Ca In neat (no solvent) booster: I2, addn. of o.5mol dry I2 or 0.3mol I2 and 0.0625mol KClO4 per 1mol LaCl3, CaO-coated bomb; decrease of react. temp. to 850°C on addn. of 20mol-% KCl (flux);;91%
In melt Electrolysis; electrolyte: LaCl3, KCl, 1-5wt.-% CaF2, 960-980°C, 7V, 12A, cathodic current density 4A/cm**2, coal anode (with caps of fluorite and porcelain), Mo cathode;; product free from Ca and Al, small amounts of Si and Fe;;65%
In melt Electrolysis; melt (in wt.-%): 27% LaCl3, 68 KCl, 5 CaF2, graphite anode, Mo cathode, 100°C, cathodic current density 7A/cm**2, current yield 50%;;60%
lanthanum(III) bromide
13536-79-3

lanthanum(III) bromide

lanthanum
7439-91-0

lanthanum

Conditions
ConditionsYield
With potassium In neat (no solvent) passing K-vapor over LaBr3 in vac.;;90%
lanthanum(III) iodide
13813-22-4

lanthanum(III) iodide

lanthanum
7439-91-0

lanthanum

Conditions
ConditionsYield
In gas Van Arkel-De Boer-process, 1000-1100°C;;20%
lanthanum(III) tris-tartrato lanthanate(III) decahydrate

lanthanum(III) tris-tartrato lanthanate(III) decahydrate

A

lanthanum(III) oxide

lanthanum(III) oxide

B

lanthanum
7439-91-0

lanthanum

C

lanthanum sesquicarbide

lanthanum sesquicarbide

D

lanthanum oxycarbide

lanthanum oxycarbide

Conditions
ConditionsYield
In neat (no solvent) byproducts: H2O, CO, CO2; heated in air at 970°C; detd. by X-ray diffraction, IR spectra, thermogravimetry and DTA;A n/a
B 1%
C n/a
D 1%
lanthanum(III) oxide

lanthanum(III) oxide

lanthanum
7439-91-0

lanthanum

Conditions
ConditionsYield
With magnesium byproducts: MgO;
With aluminium In neat (no solvent) byproducts: AlO; reduction in vac. at 800-1500°C;;
With (3S,3aS,4S,4aS,6S,8aR,8bR,11S)-6,11-dihydroxy-3-methyl-12-methylene-2-oxo-4a,6-ethano-3,8b-prop-1-enoperhydroindeno[1,2-b]furan-4-carboxylic acid In neat (no solvent) no reduction at 298 to 2000K;;0%
In melt Electrolysis; 26mol-% LaF3, 30-80mol-% LiF, 5-50mol-% BaF2, graphite anode, Mo cathode, 8-15V, 400-800A, contineuous process;;>97
With Hg; HCl; acetic acid In hydrogenchloride byproducts: H2; Electrochem. Process; soln. La2O3 in HCl; amalgamation on Hg cathode in buffer pH=3.4-3.7 (CH3COOH, CH3COONa); decomposed at 900-1250°C below 1E-6 Torr; various product yields (36-70.9%) for various conditions; amalgam rinsed (H2O, EtOH); degassed at 1000°C in vac.; elem. anal.;
lanthanum(III) oxide

lanthanum(III) oxide

A

lanthanum
7439-91-0

lanthanum

B

lanthanum(II) oxide

lanthanum(II) oxide

C

oxygen

oxygen

Conditions
ConditionsYield
vapor of the oxide studied by MS; detected by MS;
lanthanum(III) oxide

lanthanum(III) oxide

magnesium
7439-95-4

magnesium

lanthanum
7439-91-0

lanthanum

lanthanum(III) oxide

lanthanum(III) oxide

aluminium
7429-90-5

aluminium

lanthanum
7439-91-0

lanthanum

Conditions
ConditionsYield
1000-1700°C, in vac.;
lanthanum(III) oxide

lanthanum(III) oxide

lanthanum(III) fluoride
13709-38-1

lanthanum(III) fluoride

lanthanum
7439-91-0

lanthanum

Conditions
ConditionsYield
In melt Electrolysis; 73 wt.-% LaF3, 15 wt.-% LiF, 12 wt.-% BaF2, La2O3, 810-830°C, 11V, 249A, 11A7cm**2 (cathode), 4.4A/cm**2 (anode), 132 min, energy consumption: 7.5kWh/kg;; pure metal;;
In melt Electrolysis; melt of LiF and LaF3 with 2% La2O3, 95A, 27V, current density in the beginning: 1.0A/cm**2 (anode), 31.4A/cm**2 (cathode), 850-1000°C;; purity 99.8%;;
lanthanum nickel

lanthanum nickel

lanthanum
7439-91-0

lanthanum

Conditions
ConditionsYield
In further solvent(s) Electrolysis; all manipulations under Ar atm.; LaNi5 alloy ingot (as anode) electrolyzed in molten salt containing 59 mol% LiCl-41 mol% KCl with steel cathodeat 793 K vs. Ag(1+)/Ag;
zirconium
7440-67-7

zirconium

zirconium(IV) fluoride
851363-60-5, 7783-64-4

zirconium(IV) fluoride

lanthanum(III) fluoride
13709-38-1

lanthanum(III) fluoride

sodium fluoride

sodium fluoride

A

lanthanum
7439-91-0

lanthanum

B

Na7Zr6F31

Na7Zr6F31

C

zirconium difluoride

zirconium difluoride

D

NaLaF4

NaLaF4

Conditions
ConditionsYield
In melt treatment of LaF3 (2-10 wt%) with Zr (Zr:LaF3=4:1) in mixt. of NaF (51 mol%) and ZrF4 (49 mol%); outgassing at 200 and 400°C for 1 h; heating to 570-650°C in Ar; monitoring by XRD;
zirconium
7440-67-7

zirconium

lanthanum(III) fluoride
13709-38-1

lanthanum(III) fluoride

A

lanthanum
7439-91-0

lanthanum

B

zirconium(IV) fluoride
851363-60-5, 7783-64-4

zirconium(IV) fluoride

C

zirconium difluoride

zirconium difluoride

Conditions
ConditionsYield
With NaF; LiF In melt byproducts: NaLaF4, LiLaF4; heating of LaF3 and Zr in molten mixt. of 39 mol % NaF and 61 mol % LiF at 465 - 625°C; monitoring by differential thermal XRD and IR;
lanthanum dicarbide

lanthanum dicarbide

lanthanum
7439-91-0

lanthanum

Conditions
ConditionsYield
With tantalum In neat (no solvent) heating a pressed mixture of LaC2 and Ta (99.7 wt.-% Ta) under Ar to 1800-1900°C; distn. >2000°C;;
La(NO3)3.7H2O

La(NO3)3.7H2O

lanthanum
7439-91-0

lanthanum

Conditions
ConditionsYield
In ethanol Electrolysis; Hg cathode, satd. soln. in abs. ethanol, current density 0.2A/cm**2, 3h; formation of La amalgame;;
lanthanum(III) tris-2,2,6,6-tetramethylheptane-3,5-dionate

lanthanum(III) tris-2,2,6,6-tetramethylheptane-3,5-dionate

lanthanum
7439-91-0

lanthanum

Conditions
ConditionsYield
In neat (no solvent) Irradiation (UV/VIS); lanthanide compd. photodissociation by excimer laser irradiation at 248 nm; LIF detection;
lanthanum chloride hydrate
51305-40-9

lanthanum chloride hydrate

lanthanum
7439-91-0

lanthanum

Conditions
ConditionsYield
In ethanol Electrolysis; 20g LaCl3*H2O in 100ml ethanol, Hg cathode, 20V, current density 0.02A/cm**2, 30h, formation of an amalgame with 2.5-3 wt.-% La, washing with ethanol and ether, generation of La by decompn.;;
tris(6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedionate) lanthanum(III)

tris(6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedionate) lanthanum(III)

lanthanum
7439-91-0

lanthanum

Conditions
ConditionsYield
In gaseous matrix Irradiation (UV/VIS); 248 nm photodissociation (excimer laser); buffer gas N2; LIF detection;
actinium (3+)

actinium (3+)

lanthanum(III) nitrate

lanthanum(III) nitrate

A

lanthanum
7439-91-0

lanthanum

B

actinium

actinium

Conditions
ConditionsYield
In ethanol Electrolysis; coprecipitation with La;;
In ethanol
lanthanum chromate

lanthanum chromate

A

chromium oxide

chromium oxide

B

lanthanum
7439-91-0

lanthanum

C

chromium (VI) oxide

chromium (VI) oxide

D

lanthanum(II) oxide

lanthanum(II) oxide

E

chromium
7440-47-3

chromium

Conditions
ConditionsYield
In solid decompn. at 1910-2313K; not isolated; MS;
LaBr2H0.90

LaBr2H0.90

A

lanthanum
7439-91-0

lanthanum

B

LaBr2

LaBr2

C

lanthanum(III) bromide
13536-79-3

lanthanum(III) bromide

Conditions
ConditionsYield
In neat (no solvent) thermal dehydration in dynamic high vacuum (850°C, 20h, end pressure: 1E-5mbar);;A n/a
B 0%
C n/a
manganese(IV) oxide
1313-13-9

manganese(IV) oxide

lanthanum(III) oxide

lanthanum(III) oxide

calcium oxide

calcium oxide

A

manganese oxide cation

manganese oxide cation

B

lanthanum
7439-91-0

lanthanum

C

La(1+)

La(1+)

D

LaOMn
220958-03-2

LaOMn

E

oxygen

oxygen

Conditions
ConditionsYield
In neat (no solvent, solid phase) Irradiation (UV/VIS); laser ablation of La-Ca-Mn-O target (mixture of oxides, nominal composition La0.67Ca0.33MnO3, calcination at 800°C for 5 h); laser beam 532nm (Nd:YAG laser); quadrupole and TOF mass spectrometry;
sodium
7440-23-5

sodium

lanthanum(III) iodide
13813-22-4

lanthanum(III) iodide

A

lanthanum
7439-91-0

lanthanum

B

lanthanum monoiodide

lanthanum monoiodide

Conditions
ConditionsYield
In melt reduction LaI3 with Na (1:2.2) in Ta container at 500-550°C for 3days;
N,N'-p‐phenylenebis(salicylideneimine)diaqua lanthanum chloride heptahydrate

N,N'-p‐phenylenebis(salicylideneimine)diaqua lanthanum chloride heptahydrate

lanthanum
7439-91-0

lanthanum

Conditions
ConditionsYield
Stage #1: N,N'-p‐phenylenebis(salicylideneimine)diaqua lanthanum chloride heptahydrate at 30 - 183℃;
Stage #2: at 184 - 750℃;
F6La(3-)
63269-81-8

F6La(3-)

lanthanum
7439-91-0

lanthanum

Conditions
ConditionsYield
With (LiF)0.465(NaF)0.115(KF)0.42 In melt at 649.84℃; Kinetics; Temperature; Electrochemical reaction;
C3H7ClLaN2

C3H7ClLaN2

lanthanum
7439-91-0

lanthanum

Conditions
ConditionsYield
at 340 - 470℃;
gallium
7440-55-3

gallium

lanthanum
7439-91-0

lanthanum

lanthanum(III) chloride
10099-58-8

lanthanum(III) chloride

La10Cl4Ga5

La10Cl4Ga5

Conditions
ConditionsYield
In neat (no solvent) stoich. mixt. sealed in Ta tubes under Ar; Ta tubes sealed in silica ampoules (1E-2 mbar); heated (900°C, 20 d);100%
boron

boron

lanthanum
7439-91-0

lanthanum

lanthanum(III) bromide
13536-79-3

lanthanum(III) bromide

La4Br5B4

La4Br5B4

Conditions
ConditionsYield
In neat (no solvent) stoich. mixt. heating in sealed Ta capsule under Ar at 1450 K for 7 d;100%
In neat (no solvent) dry Ar-atmosphere; stoich. amts., sealed Ta-capsule, 1450 K, 7 d; quenching in cold water;
boron

boron

lanthanum
7439-91-0

lanthanum

lanthanum(III) iodide
13813-22-4

lanthanum(III) iodide

La4I5B4

La4I5B4

Conditions
ConditionsYield
In neat (no solvent) stoich. mixt. heating in sealed Ta capsule under Ar at 1370 K for 10 d;100%
In neat (no solvent) dry Ar-atmosphere; stoich. amts., sealed Ta-capsule, 1370 K, 10 d; quenching in cold water;
arsenic

arsenic

lanthanum
7439-91-0

lanthanum

lanthanum(III) iodide
13813-22-4

lanthanum(III) iodide

La3I3As

La3I3As

Conditions
ConditionsYield
In neat (no solvent) under Ar, stoich. amt. of starting materials were heated at 950 °C for 20 days, Ta-tube in an evacuated silica ampoule;100%
gallium
7440-55-3

gallium

lanthanum
7439-91-0

lanthanum

lanthanum(III) bromide
13536-79-3

lanthanum(III) bromide

La3Br3Ga

La3Br3Ga

Conditions
ConditionsYield
In neat (no solvent) stoich. mixt. sealed in Ta tubes under Ar; Ta tubes sealed in silica ampoules (1E-2 mbar); heated (850°C, 20 d);100%
gallium
7440-55-3

gallium

lanthanum
7439-91-0

lanthanum

lanthanum(III) bromide
13536-79-3

lanthanum(III) bromide

La10Br4Ga5

La10Br4Ga5

Conditions
ConditionsYield
In neat (no solvent) stoich. mixt. sealed in Ta tubes under Ar; Ta tubes sealed in silica ampoules (1E-2 mbar); heated (950°C, 33 d);100%
lanthanum
7439-91-0

lanthanum

lanthanum(III) bromide
13536-79-3

lanthanum(III) bromide

silicon
7440-21-3

silicon

La3Br3Si

La3Br3Si

Conditions
ConditionsYield
In neat (no solvent) under Ar, stoich. amt. of starting materials were heated at 1150 °C for 6 days, Ta-tube in an evacuated silica ampoule;100%
lanthanum
7439-91-0

lanthanum

lanthanum(III) iodide
13813-22-4

lanthanum(III) iodide

silicon
7440-21-3

silicon

La3I3Si

La3I3Si

Conditions
ConditionsYield
In neat (no solvent) under Ar, stoich. amt. of starting materials were heated at 1150 °C for 2 days, Ta-tube in an evacuated silica ampoule;100%
lanthanum
7439-91-0

lanthanum

pyrographite
7440-44-0

pyrographite

lanthanum(III) bromide
13536-79-3

lanthanum(III) bromide

3La(3+)*3Br(1-)*C2(6-)=La3Br3C2

3La(3+)*3Br(1-)*C2(6-)=La3Br3C2

Conditions
ConditionsYield
In neat (no solvent) under Ar, stoich. amt. of starting materials were heated at 1100 °C for 3 days, Ta-tube in an evacuated silica ampoule;100%
N,N,N,N,N,N-hexamethylphosphoric triamide
680-31-9

N,N,N,N,N,N-hexamethylphosphoric triamide

lanthanum
7439-91-0

lanthanum

1,3,5,7-cycloocatetraene

1,3,5,7-cycloocatetraene

(C8H8)La(OP(N(CH3)2)3)4(1+)*La(C8H8)2(1-)=[(C8H8)La(OP(N(CH3)2)3)4][La(C8H8)2]
209743-19-1

(C8H8)La(OP(N(CH3)2)3)4(1+)*La(C8H8)2(1-)=[(C8H8)La(OP(N(CH3)2)3)4][La(C8H8)2]

Conditions
ConditionsYield
iodine In tetrahydrofuran Ar-atmosphere; stirring (50°C, 10 d); crystn. on concg. (-20°C);100%
indium
7440-74-6

indium

lanthanum
7439-91-0

lanthanum

tellurium

tellurium

cesium chloride

cesium chloride

A

CsInTe2

CsInTe2

B

Cs3LaCl6

Cs3LaCl6

Conditions
ConditionsYield
at 299.84 - 999.84℃;A 100%
B n/a
lanthanum
7439-91-0

lanthanum

tellurium

tellurium

LaTe3

LaTe3

Conditions
ConditionsYield
With rubidium chloride at 700℃; for 96h; Sealed tube;99.5%
With rubidium chloride; lithium chloride In neat (no solvent) La, Te, RbCl and LiCl mixed; mixt. in vac. quartz ampoules heated and kept at 650°C for 50 h; gradually cooled to 540°C in 100 h; XRD;
In melt mixt. of element powders sealed in quartz ample together with of the flux (LiCl:RbCl=1:1); ample kept at 650°C for two ds; temp. gradually lowered to 540°C in 4 ds;
indium
7440-74-6

indium

lanthanum
7439-91-0

lanthanum

LaAu2In4

LaAu2In4

Conditions
ConditionsYield
In melt heating lanthanum, gold and indium in molar ratio 1:2:4 to 1000 for 10 hin vac., keeping at 1000°C for 120 h; cooling to room temp. for 48 h, X-ray anal.;99%
hydrogenchloride
7647-01-0

hydrogenchloride

lanthanum
7439-91-0

lanthanum

isopropyl alcohol
67-63-0

isopropyl alcohol

lanthanum(III) isopropoxide

lanthanum(III) isopropoxide

Conditions
ConditionsYield
With sodium In isopropyl alcohol byproducts: NaCl, H2; dry educts; dry atmosphere;; NaCl centrifuged off; evapd.; dried under 1 torr vacuum at 110°C; elem. anal.;;99%
lanthanum
7439-91-0

lanthanum

lanthanum(III) iodide
13813-22-4

lanthanum(III) iodide

ruthenium
7440-18-8

ruthenium

La3I3Ru

La3I3Ru

Conditions
ConditionsYield
In neat (no solvent) La/LaI3/Ru in a 2/1/1 mole ratio in Nb tube heated to 900°C for 7wk;99%
lanthanum
7439-91-0

lanthanum

sodium azide

sodium azide

sulfur
7704-34-9

sulfur

lanthanum(III) bromide
13536-79-3

lanthanum(III) bromide

La6N3S4Br

La6N3S4Br

Conditions
ConditionsYield
With NaBr In neat (no solvent, solid phase) byproducts: NaBr; calcd. amts. of elements and compds. reacted in evacuated silica tube with excess NaBr as flux at 850°C for 7 d;99%
lanthanum
7439-91-0

lanthanum

lanthanum(III) bromide
13536-79-3

lanthanum(III) bromide

La6Br10Fe

La6Br10Fe

Conditions
ConditionsYield
In neat (no solvent) (Ar); heating stoich. mixt. of lanthanum, lanthanum bromide and iron at 800°C for 21 d; powder X-ray;99%
lanthanum
7439-91-0

lanthanum

uranium

uranium

selenium
7782-49-2

selenium

A

La2USe5

La2USe5

B

La2U2Se9

La2U2Se9

Conditions
ConditionsYield
With Sb2Se3 In melt the mixt. of U, La, Se and Sb2Se3 as flux was placed in the furnace heated to 1123 K in 17 h, kept at 1123 K for 6 days, cooled to 673 K in 150 h, annealed at 673 K for 7 days; sepd. manually;A n/a
B 99%
hydrogenchloride
7647-01-0

hydrogenchloride

lanthanum
7439-91-0

lanthanum

water
7732-18-5

water

([La(μ-Cl)(H2O)7](Cl)2)2

([La(μ-Cl)(H2O)7](Cl)2)2

Conditions
ConditionsYield
In hydrogenchloride Schlenk techniques; dissolution La in concd. aq. HCl (37%);99%
lanthanum
7439-91-0

lanthanum

water
7732-18-5

water

hydrogen bromide
10035-10-6, 12258-64-9

hydrogen bromide

[(H2O)7La(μ-Br)2La(OH2)7] bromide

[(H2O)7La(μ-Br)2La(OH2)7] bromide

Conditions
ConditionsYield
In hydrogen bromide aq. HBr; Schlenk techniques; dissolution La in concd. aq. HBr (48%);99%
lanthanum
7439-91-0

lanthanum

water
7732-18-5

water

hydrogen iodide
10034-85-2

hydrogen iodide

[La(water)9](I)3

[La(water)9](I)3

Conditions
ConditionsYield
In further solvent(s) Schlenk techniques; dissolution La in concd. aq. HI (55%);99%
tetrahydrofuran
109-99-9

tetrahydrofuran

lanthanum
7439-91-0

lanthanum

mercury(II) thiocyanate
592-85-8

mercury(II) thiocyanate

[La(NCS)3(tetrahydrofuran)4]2

[La(NCS)3(tetrahydrofuran)4]2

Conditions
ConditionsYield
In tetrahydrofuran byproducts: Hg; under N2 using Schlenk techniques; La powder (5.0 mmol) mixed with Hg(SCN)2 (2.5 mmol); thf added; stirred (ambient temp., 5 d); settled; filtered; concd.; crystd. (5°C); elem. anal.;99%
lanthanum
7439-91-0

lanthanum

(S)-3-phenyl-2-phthaloylaminopropanal

(S)-3-phenyl-2-phthaloylaminopropanal

A

(2R,3S)-1-nitro-4-phenyl-3-phthaloylamino-2-butanol

(2R,3S)-1-nitro-4-phenyl-3-phthaloylamino-2-butanol

B

(2S,3S)-1-nitro-4-phenyl-3-phthaloylamino-2-butanol

(2S,3S)-1-nitro-4-phenyl-3-phthaloylamino-2-butanol

Conditions
ConditionsYield
With hydrogenchloride; sodium chloride In tetrahydrofuran; nitromethane; waterA 98%
B n/a
lanthanum
7439-91-0

lanthanum

phosphorus

phosphorus

magnesium
7439-95-4

magnesium

La6Mg23P

La6Mg23P

Conditions
ConditionsYield
at 700 - 1100℃; for 336h; Sealed tube; Inert atmosphere;97%
Conditions
ConditionsYield
In 1,2-dimethoxyethane all operations in sealed evacuated tubes with thoroughly dried and degassed solvents; La cutting and t-BuOCu stirred at ca. 20° for 35 h; excess of La and copper ppt. sepd. by centrifugation; reaction mixt. concd. and kept at 80° until complete dissolution of a finely dispersed ppt.; cooled slowly to 20°; crystals sepd. and dried in vacuo; identified by elem. anal.;A 75.6%
B 95.6%

Lanthanum History

    In 1839,Swedish chemist Carl Gustav Mosander discovered Lanthanum when he partially decomposed a sample of cerium nitrate by heating and treating the resulting salt with dilute nitric acid. From the resulting solution, he isolated a new rare earth he called lantana. in 1923,Lanthanum was isolated in relatively pure form .

Lanthanum Specification

The Lanthanum, with the CAS registry number 7439-91-0, belongs to the product categories of Inorganics; LanthanumSpectroscopy; LChemical Synthesis; AA Standard SolutionsAnalytical Standards; AAS; Alphabetic; Matrix Selection; NitrateSpectroscopy; Reference/Calibration Standards; Single Solution; Catalysis and Inorganic Chemistry; Chemical Synthesis; Lanthanum; LanthanumMetal and Ceramic Science; Metals; LanthanumReference/Calibration Standards; Analytical Reagents; Atomic Absorption Spectroscopy (AAS); Matrix Modifier SolutionsSpectroscopy; Matrix Modifiers (for Graphite Furnace AAS)Analytical/Chromatography; Standard Solutions; Trace Analysis Reagents; Metal or element. Its EINECS registry number is 231-099-0. This chemical's molecular formula is La and molecular weight is 138.91. What's more, its IUPAC name is the same with its product name. This chemical is a malleable, ductile, and soft metal that oxidizes rapidly when exposed to air. It is produced from the minerals monazite and bastnäsite using a complex multistage extraction process. Lanthanum compounds have numerous applications as catalysts, additives in glass, carbon lighting for studio lighting and projection, ignition elements in lighters and torches, electron cathodes, scintillators, and others.

Physical properties about Lanthanum are: (1)Phase: solid; (2)Density (near r.t.): 6.162 g·cm-3; (3)Liquid density at m.p.: 5.94 g·cm-3; (4)Melting point: 920 °C; (5)Boiling point: 3464 °C; (6)Heat of fusion: 6.20 kJ·mol-1; (7)Heat of vaporization: 402.1 kJ·mol-1; (8)Molar heat capacity: 27.11 J·mol-1;(9)#H bond acceptors: 0; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 0; (12)Polar Surface Area: 0 Å2.

Uses of Lanthanum: it is used to produce other chemicals. For example, it can react with O2 to get lanthanum(III) oxide. The reaction need the temperature of 150 °C.

4 La + 3 O2 → 2 La2O3

When you are dealing with this chemical, you should be very careful. This chemical may catch fire in contact with air, only need brief contact with an ignition source and have a very low flash point or evolve highly flammable gases in contact with water. It reacts violently with water and liberates extremely flammable gases. In addition, it is toxic by inhalation, in contact with skin and if swallowed. Therefore, you should keep away from sources of ignition and not breathe gas/fumes/vapour/spray. You must wear suitable protective clothing, gloves, eye/face protection and take off immediately all contaminated clothing. In case of contacting with eyes, you should rinse immediately with plenty of water and seek medical advice. And in case of accident or if you feel unwell seek medical advice immediately.

You can still convert the following datas into molecular structure:
(1) SMILES: [La]
(2) InChI: InChI=1S/La
(3) InChIKey: FZLIPJUXYLNCLC-UHFFFAOYSA-N

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