ON THE PRODUCTS OF NIOBIUM PENTOXIDE AND TANTALUM PENTOXIDE REACTION WITH CAUSTIC ALKALI (in Russian)
Journal Article
·
· Fiz. i Khim.
OSTI ID:4231543
The products of niobium pentoxide and tantalum pentoxide reactions with caustic soda and caustic potassium were studied. Reactions of tantalum with caustic soda solutions form various hydrous tantalates (sodium ortho- tantalate, pentatantalate, and hexatanlalate) depending on the concentration of the initial alkali solutions. The refraction indices of sodium penta- and hexatanthiates are verified and the refraction index for sodium orthotantalate is deternuned. The processes of aqueous decomposition of molten alkali containing niobium and tantalum are studied and the mechanism of hydrolytic fracturing of high-alkali niobates and tantalates are analyzed. (R.V.J.)
- Research Organization:
- Vestnik Moskov. Univ. Ser. Mat., Mekhan. Astron.
- NSA Number:
- NSA-14-002386
- OSTI ID:
- 4231543
- Journal Information:
- Fiz. i Khim., Journal Name: Fiz. i Khim. Vol. Vol: No. 6
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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