Barium oxalate

Barium oxalate Basic information
Product Name:Barium oxalate
Synonyms:BARIUM OXALATE;BARIUM OXALATE MONOHYDRATE;Ethanedioicacid,bariumsalt(1:1);BARIUM OXALATE 99.999%;Puratronic;Puratronic,99.999% (metals basis);barium oxalate, puratronic;Ethanedioic acid, barium salt
CAS:516-02-9
MF:C2BaO4
MW:225.35
EINECS:208-216-9
Product Categories:
Mol File:516-02-9.mol
Barium oxalate Structure
Barium oxalate Chemical Properties
Melting point 400 °C (dec.)(lit.)
density 2.66 g/mL at 25 °C(lit.)
form Powder
color White
Water Solubility Soluble in water.
Merck 14,985
Solubility Product Constant (Ksp)pKsp: 6.79
CAS DataBase Reference516-02-9(CAS DataBase Reference)
EPA Substance Registry SystemEthanedioic acid, barium salt (1:1) (516-02-9)
Safety Information
Hazard Codes Xn
Risk Statements 20/22-320/22-20/21/22
Safety Statements 28-24/25
RIDADR UN 1564 6.1/PG 3
WGK Germany 1
TSCA Yes
HazardClass 6.1
PackingGroup II
MSDS Information
ProviderLanguage
SigmaAldrich English
ALFA English
Barium oxalate Usage And Synthesis
DescriptionBarium 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 Propertieswhite powder(s), 99.999% purity [ALF93]
UsesAnalytical reagent, pyrotechnics.
UsesBarium oxalate, Puratronic isused as a green pyrotechnic colorant?generally in specialized?pyrotechnic compositions?containing?magnesium.
Barium oxalate Preparation Products And Raw materials
Raw materialsOxalic acid-->Barium hydroxide-->Barium hydroxide octahydrate
Ammonium phosphate dibasic Barium iodide Barium nitrate Potassium chromate Ferrous oxalate Barium Dimethyl oxalate Shikimic acid Barium hydroxide monohydrate Basic Green 4 Barium oxalate Barium hydroxide Ammonium oxalate monohydrate Barium oxalate monohydrate. BARIUM HEXABORIDE Calcium oxalate BARIUM FORMATE Barium sulfate

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