87261-30-1

Basic information

• Product Name: undecaphosphotungstate
• Synonyms: undecaphosphotungstate
• CAS NO: 87261-30-1
• Molecular Formula: H78Na7O39W11+7
• Molecular Weight: 2885.7605
• Mol File: 87261-30-1.mol
• Article Data: 1

Chemical Properties

• Boiling Point: 100°Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: g/cm³
• Vapor Pressure: 24.5mmHg at 25°C
• CAS DataBase Reference: undecaphosphotungstate(CAS DataBase Reference)
• NIST Chemistry Reference: undecaphosphotungstate(87261-30-1)
• EPA Substance Registry System: undecaphosphotungstate(87261-30-1)

Safety Data

• Hazardous Substances Data: 87261-30-1(Hazardous Substances Data)

Usage

InChI:InChI=1/7Na.39H2O.11W/h;;;;;;;39*1H2;;;;;;;;;;;/q7*+1;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

Upstream product

• 10213-10-2 sodium tungstate (VI) dihydrate 

Relevant articles and documents

TUNGSTEN-183 NMR: A COMPLETE AND UNEQUIVOCAL ASSIGNMENT OF THE TUNGSTEN-TUNGSTEN CONNECTIVITIES IN HETEROPOLYTUNGSTATES VIA TWO-DIMENSIONAL 183W NMR TECHNIQUES.

The importance of polytungstates as model compounds for homogeneous or homogeneous-heterogeneous catalysis is now well recognized, because of the triangular array of their tungsten bridging oxygens on their surfaces which resemble metal oxide surfaces. On the other hand, **1**8**3W nuclear magnetic resonance has proven to be a very good tool for determining the overall symmetry and structure of such polytungstates. Numerous efforts have been undertaken to predict a confident assignment of each tungsten line and to study the electronic changes induced on the polytungstate anion shell in the 1-11 series by the introduction of heteroelements such as transition metals. The authors show that only direct proofs of the tungsten-tungsten connectivities allow an unambiguous conclusion, in contradiction with all the actually proposed methods.