10241-04-0

Basic information

• Product Name: cobalt trichloride
• Synonyms: cobalt trichloride;Cobaltic Chloride;Cobalt(III) trichloride;Trichlorocobalt(III);Cobalt chloride (cocl3);Einecs 233-574-8
• CAS NO: 10241-04-0
• Molecular Formula: Cl₃Co
• Molecular Weight: 165.2922
• EINECS: 233-574-8
• Mol File: 10241-04-0.mol

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: 2.940
• Vapor Pressure: 33900mmHg at 25°C
• CAS DataBase Reference: cobalt trichloride(CAS DataBase Reference)
• NIST Chemistry Reference: cobalt trichloride(10241-04-0)
• EPA Substance Registry System: cobalt trichloride(10241-04-0)

Safety Data

• Hazardous Substances Data: 10241-04-0(Hazardous Substances Data)

Usage

Uses

Used in Chemical Synthesis:
Cobalt trichloride is used as a catalyst and reagent in the chemical synthesis of various organic compounds. Its strong oxidizing nature allows it to facilitate a range of reactions, making it a valuable component in the production of pharmaceuticals, dyes, and other chemicals.
Used in Analytical Chemistry:
In analytical chemistry, cobalt trichloride is used as a volumetric standard for the estimation of certain compounds. Its ability to liberate iodine from potassium iodide in acid solution makes it a useful tool for titration and other quantitative analysis techniques.
Used in Material Science:
Cobalt trichloride can be used in the preparation of various cobalt-containing materials, such as cobalt oxides and cobalt-based catalysts. These materials have applications in the electronics, energy, and environmental industries due to their unique properties and reactivity.
Used in Electrochemistry:
The strong oxidizing nature of cobalt trichloride makes it suitable for use in electrochemical processes, such as the production of batteries and fuel cells. It can be used as an additive to improve the performance and stability of these energy storage devices.
Used in Water Treatment:
Cobalt trichloride can be employed in water treatment processes, particularly for the removal of chlorine from water. Its ability to react with chlorine gas makes it a potential candidate for use in water purification systems.

InChI:InChI=1/3ClH.Co/h3*1H;/q;;;+3/p-3

Synthetic route

cobalt(II) chloride (7646-79-9) → cobalt(III) chloride (10241-04-0)

Conditions	Yield
With Cl2 In ethanol oxidation at -60°C;;
With HCl In ethanol Electrochem. Process; anodic oxidation of CoCl2, dissolved in cold alcoholic HCl, formation of a green soln.;;
With HCl; Cl2 In ethanol oxidation of CoCl2, dissolved in cold alcoholic HCl, by chlorination, formation of a green soln.;;

potassium hexacyanocobaltate(III) + ammonium chloride → cobalt(III) chloride (10241-04-0)

Conditions	Yield
In neat (no solvent) calcination with NH4Cl;;
In neat (no solvent) calcination with NH4Cl;;

hydrogenchloride (7647-01-0) + cobalt(III) oxide → cobalt(III) chloride (10241-04-0)

Conditions	Yield
In diethyl ether suspension of freshly prepared Co2O3 is treated at -5°C in the dark with dry HCl-gas;;
In diethyl ether suspension of Co2O3 in ether is treated in the dark with HCl-gas;;
In diethyl ether suspension of freshly prepared Co2O3 is treated at -5°C in the dark with dry HCl-gas;;
In diethyl ether suspension of Co2O3 in ether is treated in the dark with HCl-gas;;

hydrogenchloride (7647-01-0) + (x)Co2O3*(x)H2O → cobalt(III) chloride (10241-04-0)

Conditions	Yield
In ethanol gaseous HCl is passed into a suspension of Co2O3*xH2O in abs. alcohol;; solution is concentrated in vacuum at -15 - -20°C to a small volume and stored over CaCl2, P2O5 and NaOH at low temperatures;;

hydrogenchloride (7647-01-0) + cobalt (7440-48-4) → cobalt(III) chloride (10241-04-0)

Conditions	Yield
In diethyl ether Electrolysis; solution of HCl in ether is electrolyzed with Co-anode and Cu-cathode at 0°C in the dark;;
In diethyl ether Electrolysis; solution of HCl in ether is electrolyzed with Co-anode and Cu-cathode at 0°C in the dark;;

hydrogenchloride (7647-01-0) + cobalt(II) chloride (7646-79-9) → cobalt(III) chloride (10241-04-0)

Conditions	Yield
With CaCl2 In ethanol -70°C;;

chlorine (7782-50-5) + cobalt(II) chloride (7646-79-9) → cobalt(III) chloride (10241-04-0)

Conditions	Yield
In neat (no solvent) CoCl2 is treated with Cl2 at ambient temperatures;;
In neat (no solvent) at higher temperatures;;
In neat (no solvent) at higher temperatures;;
In neat (no solvent) CoCl2 is treated with Cl2 at ambient temperatures;;
In ethanol -60°C;;

perdeuteriopyridine (7291-22-7) + C(2)H3C(NO(2)H)C(NO(2)H)C(2)H3 + 2-bromo-[1,1,1,2,3,3,3-2H7]-propane (39091-63-9) + cobalt(III) chloride (10241-04-0) → Co(C(2)H(C(2)H3)2)(NC5(2)H5)(NOCC(2)H3CC(2)H3NO(2)H)2

Conditions	Yield
With deuteriated sodium hydroxide In d(4)-methanol CoCl3 and glyoxime were dissolved in MeOD containing NaOD and pyridine-d5 under N2, then isopropyl bromide was added under D2 and stirred; neutralized with DCl, the soln. was diluted with D2O and filtered, the crystals were washed with D2O, petroleum ether and ether, then dissolved in CDCl3/MeOD, and pptd. by D2O, drying;	86%

cobalt(III) chloride (10241-04-0) + 4-(2-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)hydrazono)-3-methyl-5-oxo-4,5-dihydro-1H-pyrazole-1-carbothioamide (624746-31-2) → [Co(N-(3-methyl 1-thiocarbamyl-5-oxo-2-pyrazolin-4-ylene)-N'-(4'-antipyrine)hydrazine)Cl3] (624746-09-4)

Conditions	Yield
In ethanol; water refluxing soln. metal salt in aq. EtOH and soln. ligand in EtOH for 1 h; react. mixt. was cooled, ppt. was filtered, washed with EtOH and benzene, and dried over P4O10; elem. anal.;	65%

cobalt(III) chloride (10241-04-0) + 1,2-dicyano-4,5-diheptylbenzene (142557-68-4) → (2,3,9,10,16,17,23,24-octaheptylphthalocyaninato)cobalt(II) (165285-38-1)

Conditions	Yield
In ethylene glycol refluxing (24 h); cooling, pouring into MeOH (pptn.), centrifugation, washing (acetone), drying, chromy. (silica gel/toluene), collection of blue fraction, evapn.; elem. anal.;	63%

bis-(biacetylmonoxime)carbohydrazone (144934-93-0) + cobalt(III) chloride (10241-04-0) → {Co(OC(NHNC(CH3)C(CH3)NO)2)Cl} (145393-95-9)

Conditions	Yield
In ethanol refluxing, 8h; evapn.; cooling; addn. of Et2O; pptn.; drying (vac., CaCl2); elem. anal.;	62%

3,6-diheptylphthalodinitrile (119931-43-0) + cobalt(III) chloride (10241-04-0) → (1,4,8,11,15,18,22,25-octaheptylphthalocyaninato)cobalt(II) (165285-37-0)

Conditions	Yield
In ethylene glycol refluxing (24 h); cooling, pouring into MeOH (pptn.), centrifugation, washing (acetone), drying, chromy. (silica gel/toluene), collection of blue fraction, evapn.; elem. anal.;	58%

ammonium thiocyanate + 2-((2-((o-hydroxy-α-methylbenzylidene)amino)ethyl)amino)ethanol (99899-09-9) + cobalt(III) chloride (10241-04-0) + 2-(2-Aminoethylamino)ethanol (111-41-1) → Co(2-(1-[2-(2-hydroxyethylamino)ethylimino]ethyl)phenolate)(2-(2-aminoethylamino)ethanol)(thiocyanate)

Conditions	Yield
In methanol MeOH soln. of CoCl3 (0.1 mmol) added to MeOH soln. of HOC6H4CH(CH3)NCH2CH2NCH2CH2OH (0.1 mmol), 2-(2-aminoethylamino)ethanol (0.1 mmol) and NH4NCS (0.1 mmol), stirred at ambient temp. for 30 min; allowed to slowly evaporated in air for 13 d, filtrated, washed with MeOH, dried in air; elem. anal., XRD;	32%

water (7732-18-5) + cobalt(III) chloride (10241-04-0) → cobalt(II) chloride hexahydrate

Conditions	Yield
In water decomposition in excessive water;;
In water

water (7732-18-5) + cobalt(III) chloride (10241-04-0) → cobalt(II) chloride dihydrate

Conditions	Yield
In water small amount of water;;
In water small amount of water;;

ammonium sulfite + water (7732-18-5) + cobalt(III) chloride (10241-04-0) → 3 ammonium sulfite * cobalt(III) sulfite * 2 H2O

Conditions	Yield
In not given a moderately concd. CoCl3 soln. mixed with a great excess of (NH4)2SO3;; crystn.;;
In not given a moderately concd. CoCl3 soln. mixed with a great excess of (NH4)2SO3;; crystn.;;

sodium stearate (822-16-2) + cobalt(III) chloride (10241-04-0) → Co(C17H35COO)2F (125171-18-8)

Conditions	Yield
With hydrogen fluoride In water Na stearate is added to an aq. soln. of CoCl3, after 2 h stirring the formed ppt. of Co stearate intermediate is filtered; an aq. 10% soln. of HF is added to the Co stearate; After 2 d the liq. phase is decanted and the residue dried in air;

cobalt(III) chloride (10241-04-0) + sodium nitrite (7632-00-0) → trisodium hexanitrocobaltate(III)

Conditions	Yield
In diethyl ether byproducts: NaCl;
In diethyl ether byproducts: NaCl;

cobalt(III) chloride (10241-04-0) → cobalt(II) chloride dihydrate

Conditions	Yield
With air In neat (no solvent)
With air In neat (no solvent)

cobalt(III) chloride (10241-04-0) → Co(2+)*2{CoCl3(H2O)3}(1-)=Co{CoCl3(H2O)3}2

Conditions	Yield
With water In neat (no solvent) excessive CoCl3;;
With H2O In neat (no solvent) excessive CoCl3;;

cobalt(III) chloride (10241-04-0) → cobalt(II) chloride (7646-79-9)

Conditions	Yield
In neat (no solvent) byproducts: Cl2; on light or in vacuum;;
In neat (no solvent) byproducts: Cl2; on light or in vacuum;;

ammonia (7664-41-7) + cobalt(III) chloride (10241-04-0) → hexammine cobalt(III) chloride

Conditions	Yield
In diethyl ether 0°C;;
In diethyl ether 0°C;;

cobalt(III) chloride (10241-04-0) → H(1+)*{CoCl3(H2O)3}(1-)=H{CoCl3(H2O)3}

Conditions	Yield
With humid air

1-(3-hydroxy-2-naphthoyl)-4-phenyl-3-thiosemicarbazide (54417-21-9) + cobalt(III) chloride (10241-04-0) → Co(2+)*HOC10H6CONNCSNHC6H5(2-)={Co(C18H13N3O2S)}

Conditions	Yield
With sodium acetate In ethanol refluxing of equimolar amts. of H2NPTS and CoCl3 in presence of sodium acetate in abs. ethanol for 2 h;; filtration; washing with ethanol and diethyl ether for several times; drying in a vacuum desiccator over anhydrous CaCl2; elem. anal.;;

1-(3-hydroxy-2-naphthoyl)-4-phenyl-3-thiosemicarbazide (54417-21-9) + cobalt(III) chloride (10241-04-0) → Co(2+)*2OC10H6CONHNHCSNHC6H5(1-)={Co(C18H14N3O2S)2}

Conditions	Yield
In ethanol refluxing of equimolar amts. of H2NPTS and CoCl3 in abs. ethanol for 2 h;; filtration; washing with ethanol and diethyl ether for several times; drying in a vacuum desiccator over anhydrous CaCl2; elem. anal.;;

p-chloroisonitrosobenzoylacetone (6797-46-2) + cobalt(III) chloride (10241-04-0) → cobalt(III) tris-p-chloroisonitrosobenzoylacetonate

Conditions	Yield
With sodium hydroxide In ethanol; water aq. soln. of metal chloride reacted with ethanolic soln. of ligand in 1/3 molar ratio; NaOH added; pH 6;; ppt. washed with EtOH; dried in vacuum; elem. anal.;;

p-bromoisonitrosobenzoylacetone (95732-21-1) + cobalt(III) chloride (10241-04-0) → cobalt(III) tris-p-bromoisonitrosobenzoylacetonate

Conditions	Yield
With sodium hydroxide In ethanol; water aq. soln. of metal chloride reacted with ethanolic soln. of ligand in 1/3 molar ratio; NaOH added; pH 6;; ppt. washed with EtOH; dried in vacuum; elem. anal.;;

ethoxythiocarbonyl hydrazide hydrochloride (25645-71-0) + cobalt(III) chloride (10241-04-0) → (Co(NH2NHCSOC2H5)3)(3+)*3Cl(1-)={Co(NH2NHCSOC2H5)3}Cl3

Conditions	Yield
With HCl In ethanol ethanolic solns. of the metal chloride and the hydrazide hydrochloride were mixed, molar ratio 1:3, and some drops HCl added;; after slow evapn. of solvent, the complex was filtered off, washed with EtOH, and dried in vac.; elem. anal.;;

6-methyl-6-(4-amino-2-azabutyl)-1-thia-4-azacycloheptane (150899-98-2) + cobalt(III) chloride (10241-04-0) → cis-dichloro-(6-methyl-6-(4-amino-2-azabutyl)-1-thia-4-azacycloheptane)cobalt(III) perchlorate* 0.5hydrate

Conditions	Yield
In methanol The ligand is dissolved in CH3OH, whilst air is drawn through the soln. a methanol soln. of CoCl3 is added dropwise over 0.5 h.; The air stream is continued for 2 h after completion of addn. followed by filtn., after dilution with water cation excange chromy., solvent is removed under reduced pressure, residue is crystd. from an aq. NaClO4 soln., elem. anal.;

2-(2-carbamothioylhydrazono)butanoic acid (89417-93-6) + cobalt(III) chloride (10241-04-0) → Co(SC(NH2)NHNC(CH2CH3)COO)(SC(NH2)NNC(CH2CH3)COO)

Conditions	Yield
With NaHCO3 In water soln. od CoCl3 added slowly to H2KBTSC/NaHCO3 in H2O; stirred;; slow evapn.; crystn.; elem. anal.;;

Upstream product

• 7646-79-9 cobalt(II) chloride 
• 7647-01-0 hydrogenchloride 
• 7440-48-4 cobalt 
• 7782-50-5 chlorine 

Downstream Products

• 7646-79-9 cobalt(II) chloride 
• 10534-89-1 hexammine cobalt(III) chloride 
• 624746-09-4 [Co(N-(3-methyl 1-thiocarbamyl-5-oxo-2-pyrazolin-4-ylene)-N'-(4'-antipyrine)hydrazine)Cl₃] 
• 60166-10-1 [5,10,15,20-tetraphenylporphyrin]cobalt(III) chloride