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Cerium tetrahydroxide cas 12014-56-1Appearance:white crystalline powder Storage:Store in dry, dark and ventilated place Package:25KG drum Application:intermediate Transportation:by air, by sea, by express
Conditions | Yield |
---|---|
In water at pH = 5.8 - 6.1;; pptn.;; | |
In water |
Conditions | Yield |
---|---|
In water at pH = 6.2 - 6.5;; pptn.;; | |
In water |
Conditions | Yield |
---|---|
In water addition of a 0.1 M solution of Ca(OCl)2 in H2O to a 0.1 M CeCl3 solution;; 82.2 % CeO2, 0.85 % Cl2 and 16.8 % H2O;; |
water
cerium(IV) hydroxide
Conditions | Yield |
---|---|
With Ce-amalgam In not given byproducts: H2; |
Conditions | Yield |
---|---|
byproducts: H2; |
sodium hypochlorite
water
cerium chloride
cerium(IV) hydroxide
Conditions | Yield |
---|---|
In not given byproducts: HOCl, Cl(1-); |
Conditions | Yield |
---|---|
In neat (no solvent) inflammation;; |
Conditions | Yield |
---|---|
With NH3 In ammonia aq. NH3; pptg. with 15 M aq. NH3 from aq. soln. of Ce-salt; |
Conditions | Yield |
---|---|
In water Kinetics; byproducts: H2, C2H2; 20°C; | |
In neat (no solvent) Kinetics; byproducts: C2H2, H2; reaction of water vapour with arc-melted beads (100 mg) of dicarbide at constant temp. in the range 0-60°C; no isolation, thermogravimetric and pressure monitoring; |
cerium(IV) hydroxide
Conditions | Yield |
---|---|
With ammonia In water addition of an excess of aq. NH3 to a hot solution of Ce(NO3)3 in H2O, washing and drying in air;; mixture of Ce(4+) and Ce(3+);; |
cerium(IV) hydroxide
Conditions | Yield |
---|---|
With ammonia In water precipitation from a cold solution of Ce(SO4)2 with aq. NH3;; washing with H2O, drying on air for 10 days and heating at 385°C;; | |
With ammonia In water precipitation with aq. NH3;; drying in vacuum at 40°C;; | |
With ammonia In water reaction with aq. NH3;; 69.6 % Ce(4+), 1.3 % Ce(3+);; | |
In water precipitation from a 0.01 M Ce(SO4)2 solution at pH = 2.70;; |
Conditions | Yield |
---|---|
In sulfuric acid addition of a NaOH solution (6 weight %) to a 0.5 M solution of Ce(SO4)2 in 2 n H2SO4;; precipitation; repeated washing with H2O (suspension) and drying in air, washing with 0.1 n HCl and H2O and drying in air; impured by SO4(2-), 18.3 % H2O;; |
morpholine
cerium(IV) hydroxide
Conditions | Yield |
---|---|
With ceric acid In not given morpholine addn. to ceric acid soln.; |
Conditions | Yield |
---|---|
In sulfuric acid addition of 10 n NaOH solution to a solution of 0.02 n Ce(4+) and 0.02 n Ce(3+) (same volume) in 1 n H2SO4 at 25°C to pH = 2.73, addition of 2 n NaOH solution (formation of CeO(OH)2 at pH = 3.75) to pH = 8.5 and addition of 10 n NaOH solution;; |
Conditions | Yield |
---|---|
In water boiling a concentrated NaOH solution with an insoluble Ce(4+) salt;; granulated Ce(OH)4;; |
Conditions | Yield |
---|---|
In water 2 M aq. naOH was added to 1 M soln. of Ce-compd.; ppt. was filtered, washed, dried at 373 K for 20 h; | |
In water filtering, washing, drying for ca. 20 h in a drying oven at 100 °C; | |
In water |
Conditions | Yield |
---|---|
In not given soln. of ceric ammonium nitrate pptd. with dilute soln. of NH4OH; washed several times (H2O), dried; |
cerium(IV) hydroxide
Conditions | Yield |
---|---|
With ammonia In water precipitation with diluted aq. NH3;; drying on air;; |
cerium(IV) hydroxide
Conditions | Yield |
---|---|
In not given oxydation in alkaline solution under exclusion of CO2;; |
cerium(IV) hydroxide
Conditions | Yield |
---|---|
With air In not given oxydation on air in alkaline solution;; | |
With Cl2 or NaBO3 In not given introduction of Cl2 into the mother liquor of Ce(OH)3 at 3 - 5°C or addition of NaBO3, storing for 2 hours and boiling;; | |
In neat (no solvent) heating in air at 120°C;; | |
With air In not given oxydation on air in alkaline solution;; |
Conditions | Yield |
---|---|
In water byproducts: O2; oxydation with 30 % H2O2 under stirring under formation of O2, 1 hour;; precipitation; washing with ethanol and ether; CeO2*2H2O (17.55 % H2O);; | |
In water byproducts: O2; oxydation with 30 % H2O2 under stirring under formation of O2, 1 hour;; precipitation; washing with H2O, dioxane and petroleum ether; CeO2*2H2O;; | |
In not given heating a suspension of Ce(OH)3 in presence of H2O2;; |
cerium(IV) hydroxide
Conditions | Yield |
---|---|
With NH3 In water dissolved in H2O, precipitated with 15 M ammonia; | |
With ammonia In water pptd.; | |
With NH3 In water pptg. with 15 M NH3 from aq. soln. of Ce-salt; drying; | |
With ammonia In water Ce(SO4)2*4H2O dissolved in water and Ce(OH)4 precipitated with ammonia; |
cerium(IV) hydroxide
Conditions | Yield |
---|---|
With ammonia In water addition of a solution of (NH4)2Ce(NO3)6 in H2O to an excess of NH3 solution;; | >99 |
With urea In nitric acid solvation of same amounts of (NH4)2Ce(NO3)6 and NH2CONH2 in boiling diluted aq. HNO3 and boiling (addition of evaporated H2O) for 90 minutes;; drying on air;; | >99 |
With ammonia In water reaction of (NH4)2Ce(NO3)6 with aq. NH3 solution;; boiling with H2O2; no traces of Ce(OH)3;; | |
In water precipitation;; washing (free from NH3);; |
Conditions | Yield |
---|---|
In water dissolving cerium(IV) ammonium nitrate in water, addn. of ammonium hydroxide; allowing the ppt. to settle for 48 h, leaching several times with water; |
cerium(IV) hydroxide
Conditions | Yield |
---|---|
With ammonia In water precipitation in presence of As(5+);; complete coprecipitation of As(5+) at pH 7 - 9, rather complete coprecipitation at pH = 9 - 10.5;; | |
With ammonia In water addition of aq. NH3;; precipitation and drying;; | |
With ammonia In water precipitation in presence of salt solution of Se and Te;; coprecipitation;; | |
With ammonia In water very slow addition of aq. NH3 to pH = 0.7 - 1.0 (3) in presence of other lanthanides;; purity 99.9 (98.5 - 98.8) %;; | >99 |
In water hydrolysis of a (0.01 - 0.1 mol/l) Ce(4+) solution in presence of (3 M) NaNO3 at 25.+-.0.5°C, pH = 0 - 1;; |
cerium(IV) hydroxide
Conditions | Yield |
---|---|
With ammonia In not given addn. of ammonia until pH=10; filtn., repeatedly washing; | |
With sodium hydroxide |
Conditions | Yield |
---|---|
In ammonia aq. ammonia=NH3; decompn.;; | |
In sodium hydroxide aq. NaOH; decompn.;; |
Conditions | Yield |
---|---|
In ammonia aq. ammonia=NH3; decompn.;; | |
In sodium hydroxide aq. NaOH; decompn.;; |
Conditions | Yield |
---|---|
In ammonia aq. ammonia=NH3; decompn.;; | |
In sodium hydroxide aq. NaOH; decompn.;; |
Conditions | Yield |
---|---|
In ammonia aq. ammonia=NH3; decompn.;; | |
In sodium hydroxide aq. NaOH; decompn.;; |
cerium(IV) hydroxide
Conditions | Yield |
---|---|
With HCL In methanol HCl was passed throug a mixture of Ce(IV) hydroxide in dry methanol for 2 h; addn. of the ligand to the solution;; precipitation; filtration; the product was dried in vacuo for 3 h at 120 ° C;; | 80% |
Conditions | Yield |
---|---|
In not given acidified Na2SO3 soln.;; | 19% |
In not given acidified Na2SO3 soln.;; | 19% |
Conditions | Yield |
---|---|
In neat (no solvent) tempering pressed tablets of SrCO3 and Ce(OH)4 mixture 4 d at 850°C, then 4 h at 1000°C;; |
Conditions | Yield |
---|---|
In neat (no solvent) tempering a pressed mixture of BaCO3 and Ce(OH)4 for 1 day at 680°C, for 1 day at 800°C and 2 days at 970°C forms BaCeO3;; |
Conditions | Yield |
---|---|
In water | |
In perchloric acid Ce(OH)4 dissolved in perchloric acid; | |
dissolving of cerium(IV) hydroxide in perchloric acid; filtration; |
Conditions | Yield |
---|---|
In neat (no solvent) |
cerium(IV) hydroxide
Conditions | Yield |
---|---|
In neat (no solvent) calcination at 773 K for 4 h in air flow with a temp. rate of 0.5 K/min; | |
In neat (no solvent) heating (air, 4 h), evacuating (1 h, 773 K), treating in O2 at 290 K; | |
In neat (no solvent) heating at 450 °C under N2 for 2 h; |
cerium(IV) hydroxide
sulfuric acid
Conditions | Yield |
---|---|
In water Ce(OH)4 added to saturated aq. soln. of K2CrO4; concentrated sulfuric acid added until Ce(OH)4 completely dissolved; additional saturated aq. K2CrO4 added; sample left covered; after a year crystals started to periodically form and dissolve; |
Conditions | Yield |
---|---|
In water (NH4)2CrO4 and Ce(OH)4 added to water; stirred; solid residue removed by filtration; solvent evaporated; recrystn. from water; |
perchloric acid
cerium(IV) hydroxide
Conditions | Yield |
---|---|
In not given addition of an excess of HClO4 (free from H2O) to Ce(OH)4;; | |
In not given |
Conditions | Yield |
---|---|
In not given drying Ce(IV) hydroxide at 120°C and addition of an excess of 50 % H2SeO4;; | |
In not given |
Conditions | Yield |
---|---|
In not given | |
In not given |
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