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516-02-9 Usage

Description

Barium oxalate, a Barium salt of oxalic acid, is a white odourless powder that is sometimes used as a green pyrotechnic colorant generally in specialized pyrotechnic compositions containing magnesium. Though largely stable, it can be reactive with strong acids. A mild skin irritant, the substance is considered toxic when ingested, causing nausea, vomiting, renal failure and injury to the gastrointestinal tract. Its molecular structure is written as C2BaO4. The raw materials that are required to prepare Barium oxalate are oxalic acid, Barium hydroxide octahydrate, and Barium hydroxide. It can also be prepared alternatively by using an oxalic acid solution and a Barium chloride solution, with the reaction as follows: BaCl2 + (COOH)2 > BaC2O4 + HCl It is different from most pyrotechnic colorants in that it is a reducing agent, and not an oxidizing agent. It is extremely insoluble in water and converts to the oxide form when heated.

Chemical Properties

white powder(s), 99.999% purity [ALF93]

Uses

Different sources of media describe the Uses of 516-02-9 differently. You can refer to the following data:
1. Analytical reagent, pyrotechnics.
2. Barium oxalate, Puratronic isused as a green pyrotechnic colorant?generally in specialized?pyrotechnic compositions?containing?magnesium.

Check Digit Verification of cas no

The CAS Registry Mumber 516-02-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,1 and 6 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 516-02:
(5*5)+(4*1)+(3*6)+(2*0)+(1*2)=49
49 % 10 = 9
So 516-02-9 is a valid CAS Registry Number.
InChI:InChI=1/C2H2O4.Ba/c3-1(4)2(5)6;/h(H,3,4)(H,5,6);/q;+2/p-2

516-02-9 Well-known Company Product Price

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  • Alfa Aesar

  • (13009)  Barium oxalate, Puratronic?, 99.999% (metals basis)   

  • 516-02-9

  • 5g

  • 336.0CNY

  • Detail
  • Alfa Aesar

  • (13009)  Barium oxalate, Puratronic?, 99.999% (metals basis)   

  • 516-02-9

  • 25g

  • 1219.0CNY

  • Detail
  • Alfa Aesar

  • (13009)  Barium oxalate, Puratronic?, 99.999% (metals basis)   

  • 516-02-9

  • 100g

  • 3661.0CNY

  • Detail

516-02-9SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name Barium Oxalate

1.2 Other means of identification

Product number -
Other names Barium oxalate

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:516-02-9 SDS

516-02-9Synthetic route

Hg(b),Ba(0.298) (W%)

Hg(b),Ba(0.298) (W%)

carbon dioxide
124-38-9

carbon dioxide

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
In neat (no solvent) treatment of Ba amalgam with CO2 at ambient temp., complete exclusion of O2 and atmospheric moisture;;52.04%
In neat (no solvent) treatment of Ba amalgam with CO2 at ambient temp., complete exclusion of O2 and atmospheric moisture;;52.04%
carbon dioxide
124-38-9

carbon dioxide

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
With Ba-amalgam52%
sodium oxalate
62-76-0

sodium oxalate

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
With BAS
BaC2O4+2 H2O

BaC2O4+2 H2O

BaC2O4+0.5 H2O

BaC2O4+0.5 H2O

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
at 140 - 150℃;
sodium oxalate
62-76-0

sodium oxalate

barium carbonate

barium carbonate

A

carbonate(2-)
3812-32-6

carbonate(2-)

B

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
In not given effect of 0.1 M-Na2C2O4-solution on BaCO3 at 16-18°C for 2 h forms an equilibrium under formation of BaC2O4 and CO3(2-); examination of the equilibrium dependent on time;;
barium(II) oxide

barium(II) oxide

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
With oxalic acid In methanol pptn.;
With oxalic acid In methanol pptn.;
oxalic acid
144-62-7

oxalic acid

barium(II) hydroxide

barium(II) hydroxide

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
In not given mixing of Ba(OH)2-solution with dild. oxalic acid-solution forms BaC2O4; crystallisation after 5 min.; examination of the reaction;;
In water titration of Ba(OH)2-solution with oxalic acid in aq. solution pptn. BaC2O4; examination of the decrease of the electric conductivity of the reaction solution;;
In water Ba(OH)2:HOOCCOOH=0.98:1.125 (molar ratio);
barium oxalate hemihydrate

barium oxalate hemihydrate

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
140-150°C;
140-150°C;
In neat (no solvent, solid phase) byproducts: H2O; dehydrated in a N2 stream in a tube furnace;
barium dioxalatodioxygenosmate * BaC2O4 * 6 H2O

barium dioxalatodioxygenosmate * BaC2O4 * 6 H2O

oxalic acid
144-62-7

oxalic acid

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
In water partly decompn.;;
In water partly decompn.;;
potassium tris(oxalato)chromate(III)

potassium tris(oxalato)chromate(III)

barium(II) hydroxide

barium(II) hydroxide

A

chromium(III) oxide * x H2O

chromium(III) oxide * x H2O

B

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
In water pptn.;;
In water pptn.;;
ammonium iron(III) oxalate

ammonium iron(III) oxalate

barium(II) chloride

barium(II) chloride

A

barium iron(III) oxalate *xH2O

barium iron(III) oxalate *xH2O

B

barium oxalate
516-02-9

barium oxalate

BaO*CO2=BaCO3

BaO*CO2=BaCO3

3H(1+)*{IrCl4(C2O4)}(3-)*99H2O=H3{IrCl4(C2O4)}*99H2O

3H(1+)*{IrCl4(C2O4)}(3-)*99H2O=H3{IrCl4(C2O4)}*99H2O

A

iridium (III) chloride
10025-83-9

iridium (III) chloride

B

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
In water filtering;evapn.;
barium trioxalatochromate(III) *14H2O

barium trioxalatochromate(III) *14H2O

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
In water at elevated temp.;;
In water at elevated temp.;;
barium sulfide

barium sulfide

sodium oxalate
62-76-0

sodium oxalate

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
In not given
barium sulfide

barium sulfide

sodium oxalate
62-76-0

sodium oxalate

A

sodium sulfide

sodium sulfide

B

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
In not given formation of Na2S as by-product by prepn. of Ba-oxalate from Na-oxalate and BaS;;
In not given formation of Na2S as by-product by prepn. of Ba-oxalate from Na-oxalate and BaS;;
barium sulfide

barium sulfide

oxalic acid
144-62-7

oxalic acid

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
In water BaS soln. was boiled with oxalic acid;;
In water BaS soln. was boiled with oxalic acid;;
oxalic acid
144-62-7

oxalic acid

barium(II) oxide

barium(II) oxide

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
In methanol; water pptn. from BaO soln. (methanol) with aq. oxalic acid soln.; drying;
In not given pptn.;
In methanol; water pptn. from BaO soln. (methanol) with aq. oxalic acid soln.; drying;
In not given pptn.;
rac. cis-K3{IrCl2(C2O4)2}*H2O

rac. cis-K3{IrCl2(C2O4)2}*H2O

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
With barium(II) chloride In water0%
With BaCl2 In water0%
barium platinum(II) dinitrooxalate

barium platinum(II) dinitrooxalate

A

barium oxalate
516-02-9

barium oxalate

B

platinum
7440-06-4

platinum

Conditions
ConditionsYield
byproducts: NO2;
byproducts: NO2;
barium oxalate * x H2O

barium oxalate * x H2O

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
In solid dehydratn. of hydrated oxalate under N2; ppt. was dried in air;
(NH4)2O*BeO*2C2O3

(NH4)2O*BeO*2C2O3

barium(II) chloride

barium(II) chloride

A

beryllium(II) chloride
7787-47-5

beryllium(II) chloride

B

barium oxalate
516-02-9

barium oxalate

potassium barium platinum(II) dinitrooxalate*4H2O

potassium barium platinum(II) dinitrooxalate*4H2O

A

potassium oxalate
583-52-8

potassium oxalate

B

barium oxalate
516-02-9

barium oxalate

C

platinum
7440-06-4

platinum

Conditions
ConditionsYield
byproducts: NO2; 150 °C;
byproducts: NO2; 150 °C;
oxalate dianion
338-70-5

oxalate dianion

barium(II) chloride

barium(II) chloride

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
With Sulfate In not given byproducts: BaSO4; pptn. of BaC2O4 out of solutions containing SO4(2-) and C2O4(2-) with BaCl2; also pptn. of BaSO4;; not isolated;;
With SO4(2-) In not given byproducts: BaSO4; pptn. of BaC2O4 out of solutions containing SO4(2-) and C2O4(2-) with BaCl2; also pptn. of BaSO4;; not isolated;;
potassium oxalate
583-52-8

potassium oxalate

barium(II) chloride

barium(II) chloride

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
In water byproducts: KCl; pptn. zone formation in polyacrylamide gel (tube filled with polyacrylamide/water 10/90% contg. 0.2-0.3 M K2C2O4 in contact with aq. BaCl2) or in Celophane skins (Celophane separating aq. solns. of educts); room temp.;
ammonium oxalate

ammonium oxalate

barium(II) chloride

barium(II) chloride

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
In water dilute soln. (pptn.); filtration, repeated washing (hot H2O), drying (423 K);
barium(II) nitrate

barium(II) nitrate

oxalic acid
144-62-7

oxalic acid

oxalic acid diethyl ester
95-92-1

oxalic acid diethyl ester

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
In nitric acid aq. HNO3; Ba(NO3)2 was dissolved in aq. HNO3, pH 3-3.5, diethyl oxalate was added,digested for 2 h, hot soln. of oxalic acid was added, digested for 1 h; filtered, washed with water, dried;
barium(II) nitrate

barium(II) nitrate

ammonium hydroxide

ammonium hydroxide

oxalic acid
144-62-7

oxalic acid

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
In not given byproducts: H2O; pptn. begins at pH 2.4;
barium(II) nitrate

barium(II) nitrate

ammonium oxalate

ammonium oxalate

oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
In not given addn. of soln. of Ba-salt to mixt. of H2C2O4 and (NH4)2C2O4 (excess of (NH4)2C2O4, 25+/-0.2°C, continuous stirring), pptn.; ppt. filtration off, washing, drying (150°C); AAS;
oxalate dianion
338-70-5

oxalate dianion

barium(II)

barium(II)

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
In not given titration of C2O4(2-) with Ba(2+) forms BaC2O4;;
In not given titration of C2O4(2-) with Ba(2+) forms BaC2O4;;
barium(II)

barium(II)

oxalic acid
144-62-7

oxalic acid

barium oxalate
516-02-9

barium oxalate

Conditions
ConditionsYield
In not given pptn.;
In not given pptn.;
barium oxalate
516-02-9

barium oxalate

sodium carbonate
497-19-8

sodium carbonate

barium carbonate

barium carbonate

Conditions
ConditionsYield
In not given 5 min boiling;100%
In not given 5 min boiling;100%
barium chromate

barium chromate

oxalic acid dihydrate
6153-56-6

oxalic acid dihydrate

barium oxalate
516-02-9

barium oxalate

(Ba6(H2O)17[Cr(oxalate)3]4)*7H2O

(Ba6(H2O)17[Cr(oxalate)3]4)*7H2O

Conditions
ConditionsYield
In water Ba2C2O4 and H2C2O4*2H2O were dissolved in water at 60°C, soln. was filtered, BaCrO4 was added and stirred for 45 min; soln. was filtered and evapd. slowly, crystals were washed with water, dried in air and in oven (120°C); elem. anal.;89.3%
boric acid
11113-50-1

boric acid

barium oxalate
516-02-9

barium oxalate

barium polyborate

barium polyborate

Conditions
ConditionsYield
With NH2CH2CH2NH2; CH3NH2 In water High Pressure; stirring of mixt. of Ba(COO)2, H3BO3, NH2CH2CH2NH2, CH3NH2 and H2O in molar ratio 1:0.75:3:4:67 in Teflon-lined stainless steel vessels under autogenous pressure, heating at 180°C for 3 days, initial pH = 13; crystn., filtration, washing with distd. water, drying in air at ambienttemp.;80%
iron(III) chloride hexahydrate

iron(III) chloride hexahydrate

potassium oxalate
583-52-8

potassium oxalate

barium oxalate
516-02-9

barium oxalate

potassium trioxalatoferrate(III) trihydrate

potassium trioxalatoferrate(III) trihydrate

Conditions
ConditionsYield
In water soln. digested on water bath for 1 h; filtered in hot, volume reduced by evapn. at reduced pressure, filtered,washed with cold water; elem. anal.;70%
barium oxalate
516-02-9

barium oxalate

CO3

CO3

A

BaCO3

BaCO3

B

C2O4

C2O4

Conditions
ConditionsYield
Equilibrium constant;
barium oxalate
516-02-9

barium oxalate

A

carbon monoxide

carbon monoxide

B

barium carbonate

barium carbonate

C

coal

coal

Conditions
ConditionsYield
at 400℃;
titanium(IV) oxide

titanium(IV) oxide

barium oxalate
516-02-9

barium oxalate

barium titanate

barium titanate

Conditions
ConditionsYield
With sodium chloride In melt react. BaC2O4, TiO2 and polyoxyethylene(9) nonylphenyl ether with gaseous NaCl at 760°C for 24 h; product was washed, centrifugated with water and dried at 100°C for 12 h; X-ray powder diffraction;
With nonylphenyl ether In sodium chloride BaC2O4, anatase, NaCl and nonylphenyl ether mixed in a molar ratio of 1/1/20/3, ground for 20 min, sonicated for 5 min, annealed at 820°Cfor 3.5 h; cooled to room temp., washed with H2O, dried at 120°C overnight; obtained as nanomaterial;
barium oxalate
516-02-9

barium oxalate

barium carbonate

barium carbonate

Conditions
ConditionsYield
In neat (no solvent) thermic decomposition of BaC2O4 at 515°C forms BaCO3;;
In neat (no solvent) thermal decomposition of BaC2O4 forms BaCO3;;
In neat (no solvent) decomposition of BaC2O4 under formation of BaCO3 begins at 346°C and is complete at 476°C;;
barium oxalate
516-02-9

barium oxalate

A

barium silicate

barium silicate

B

barium carbonate

barium carbonate

Conditions
ConditionsYield
In neat (no solvent) byproducts: CO2; heating a mixture of BaCO3 and SiO2 in a mol-ration of 1:10 at 948°C forms BaSiO3 and CO2; examination of the reaction depending on the grain-radius;;
barium oxalate
516-02-9

barium oxalate

A

pyrographite
7440-44-0

pyrographite

B

barium carbonate

barium carbonate

Conditions
ConditionsYield
byproducts: CO; heating;
byproducts: CO; heating;
In neat (no solvent, solid phase) byproducts: CO, CO2; thermal decomposition of BaC2O4 in He, Ar, N2, CO and CO2 atmosphere, the heating rate was 6 deg/min; detd. by XRD and IR;
yttrium oxalate

yttrium oxalate

copper(II) oxalate
814-91-5

copper(II) oxalate

barium oxalate
516-02-9

barium oxalate

yttrium barium copper oxide

yttrium barium copper oxide

Conditions
ConditionsYield
In not given spray-drying of a colloidal suspn. of submicron-sized Y2(C2O4)3, Ba(C2O4) and Cu(C2O4) to spherical granules, dry pressing, decompn. (<=610°C), sintering in air or oxygen (various temp.);
With O2 mixt. decompn. at 1190 K for 10 h in O2, pelletizing, sintering at 1210 K for 8 h in O2; SEM;
water
7732-18-5

water

barium oxalate
516-02-9

barium oxalate

barium oxalate hemihydrate

barium oxalate hemihydrate

copper(II) oxalate
814-91-5

copper(II) oxalate

barium oxalate
516-02-9

barium oxalate

barium cuprate

barium cuprate

Conditions
ConditionsYield
In solid fired at 850°C for 4 h in flowing O2 or at 800°C for 8 h at ambient atm.;
cobalt(II) oxalate
134761-87-8

cobalt(II) oxalate

lanthanum oxalate

lanthanum oxalate

barium oxalate
516-02-9

barium oxalate

La0.80Ba0.20CoO3

La0.80Ba0.20CoO3

Conditions
ConditionsYield
In neat (no solvent) decompn. (600°C), pelletizing, firing (1300°C, several days);
water
7732-18-5

water

barium oxalate
516-02-9

barium oxalate

molybdenum(VI) oxide

molybdenum(VI) oxide

Ba(2+)*Mo(6+)*3O(2-)*C2O4(2-)*3.5H2O=Ba{MoO3(C2O4)}*3.5H2O

Ba(2+)*Mo(6+)*3O(2-)*C2O4(2-)*3.5H2O=Ba{MoO3(C2O4)}*3.5H2O

Conditions
ConditionsYield
In water shaking of a suspension of BaC2O4 and MoO3 in H2O for 3-4 hours;;
In water shaking of a suspension of BaC2O4 and MoO3 in H2O for 3-4 hours;;
water
7732-18-5

water

barium oxalate
516-02-9

barium oxalate

molybdenum(VI) oxide

molybdenum(VI) oxide

3BaO*2C2O3*V2O5*6MoO3*17H2O

3BaO*2C2O3*V2O5*6MoO3*17H2O

Conditions
ConditionsYield
With barium vanadate In water aq. suspension of BaC2O4, barium vanadate and MoO3; boiling of the ppt. with H2O;; crystn. from the dild. aq. soln.;;

516-02-9Relevant articles and documents

Zones of sparingly soluble inorganic salts with membrane properties in gels

Choi,Newrzella,Woermann

, p. 1548 - 1553 (1988)

Polyacrylamide gels containing potassium oxalate (sodium oxalate) are brought into contact with aqueous solutions of Pb(NO3)2, CaCl2, SrCl2 and BaCl2 respectively. The electrolyte concentrations in the gel phase and in the solutions are varied systematically. There exists a system specific characteristic concentration cs below which advancing precipitation zones of PbOx, CaOx, SrOx, and BaOx (Ox: oxalate) within the gel are observed. The experiments indicate that the precipitation zones with membrane properties are generated by homogeneous nucleation. The kinetics of formation of oxalate precipitates in cellophane skins is studied by measurement of the membrane potential as function of time. In these systems precipitate is formed by interdiffusion of two solutions containing the appropriate ions.

Lucasse, W. W.,Miller, J. G.,Eckfeldt, E. L.

, p. 1398 - 1409 (1949)

Thermal analysis of La-Ba oxalate and role of γ-irradiation there on

Nayak,Bhatta

, p. 37 - 43 (2008/10/08)

Lanthanum-barium oxalate was prepared and characterised by chemical and thermal analysis, X-ray diffraction and plasma emission spectroscopy. X-ray analysis showed the presence of a uniphase system. The kinetics of decomposition of oxalates of La and Ba as well as coprecipitated La-Ba oxalate have been investigated in air using dynamic thermogravimetry. The decomposition of mixed oxalate occurred with two over-lapping exotherms, corresponding to the decomposition of lanthanum oxalate followed by that of barium. The kinetics of decomposition of the irradiated salt was studied over the same temperature range as that of the unirradiated one in air and activation energies obtained from the slopes of Coat-Redfern's plot. Kinetic analyses following various theoretical models of solid state reactions showed that the best fit was obtained for a third order reaction and geometrical models. It was evident that though there was increase in the activation energy as well as frequency factor with increasing radiation dose, reverse phenomenon takes place in the case of reaction rate. The effect of γ-irradiation on the process and the mechanism involved therein has been discussed.

THE USE OF THERMAL ANALYSIS FOR THE STUDY OF THE CALCINATIONPROCESS OF OXALATEPRECURSORS FOR THE SYNTHESIS OF HIGH TC SUPERCONDUCTORS

Vos, A.,Mullens, J.,Carleer, R.,Yperman, J.,Vanhees, J.,Poucke, L. C. Van

, p. 187 - 192 (2007/10/02)

The decomposition of the oxalateprecursors Y2(C2O4)3 * 4BaC2O4 * (6+n)CuC2O4 * xH2O for the synthesis of high Tc superconductors and the individual Y-, Ba-, Cu-oxalate components is investigated by DTA and by TGA coupled with FTIR.

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