The Raman spectrum of sodium ditungstate, Na2W2O7
β Scribed by F. Knee; R.A. Condrate Sr.
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 158 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0022-3697
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π SIMILAR VOLUMES
## Abstract Salt crystallisation in pores is known to cause serious damage to masonry. Sodium sulphate, often regarded as one of the most damaging salts, has a rich hydrate chemistry including one rediscovered metastable hydrate and a new high pressure octahydrate plus five known polymorphs of the
A new compound, Na 2 W 2 O 7 . 1 2 H 2 O, has been found in the Na 2 O-WO 3 -H 2 O system. It is the fourth compound in the Na 2 W 2 O 7 . xH 2 O system and the second phase containing water. The crystals were prepared at a pressure of 1.5 GPa and a temperature of 9001C. Na 2 W 2 O 7 . 1 2 H 2 O cry