7116-98-5

Basic information

• Product Name: RADIUMCARBONATE
• Synonyms: RADIUMCARBONATE
• CAS NO: 7116-98-5
• Molecular Weight: 0
• Mol File: 7116-98-5.mol
• Article Data: 0

Chemical Properties

• Appearance: /
• Water Solubility: insoluble H2O [HAW93]
• CAS DataBase Reference: RADIUMCARBONATE(CAS DataBase Reference)
• NIST Chemistry Reference: RADIUMCARBONATE(7116-98-5)
• EPA Substance Registry System: RADIUMCARBONATE(7116-98-5)

Safety Data

• Hazardous Substances Data: 7116-98-5(Hazardous Substances Data)

Usage

Description

Radium carbonate, with the molecular formula RaCO3, is a soluble radium compound that is more soluble than its barium counterpart. It is characterized by its ability to concentrate in the soluble fraction during fractional precipitation of barium-radium mixtures and is soluble in dilute acids and concentrated ammonium carbonate solution.

Uses

Used in Medicine:
Radium carbonate is used as a radioactive material in medical applications, particularly for the treatment of cancer. Its radioactivity allows for targeted radiation therapy to destroy cancer cells.
Used in Preparation of Radium Compounds:
Radium carbonate serves as a precursor in the production of other radium compounds, which can be utilized in various industrial and research applications. Its solubility properties make it a suitable starting material for the synthesis of these compounds.

Preparation

In general, RaCO3 is prepared in conjunction with BaCO3 and then separated. Radium sulfate is the most insoluble of the alkaline earth sulfates and probably the most insoluble radium compound known.Radium carbonate may also be prepared by precipitation from neutral or weakly alkaline solutions of radium salts with a solution of ammonium carbonate. Gram quantities of radiumhave been recovered from a concentrated solution of radium nitrate by precipitation as the carbonate. The radium nitrate solution was adjusted to pH 9.2-9.5 with concentrated ammonium hydroxide. Carbon dioxide gas was bubbled into the solution until the pH was just slightly above 7.0. To insure complete precipitation of radium carbonate, ethyl alcohol and some additional ammonium hydroxide solution were added. The radium carbonate was filtered and washed with 90% ethyl alcohol. It was first dried at 110°C to remove the alcohol and weighed as RaCO3.