Barium oxalate Property

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 Reference

516-02-9(CAS DataBase Reference)

EPA Substance Registry System

Ethanedioic acid, barium salt (1:1) (516-02-9)

Safety

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

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H302Harmful if swallowed

H312Harmful in contact with skin

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P321Specific treatment (see … on this label).

Barium oxalate Chemical Properties,Usage,Production

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

Analytical reagent, pyrotechnics.

Uses

Barium oxalate, Puratronic isused as a green pyrotechnic colorant?generally in specialized?pyrotechnic compositions?containing?magnesium.