223328
Tungstic acid
99%
Synonym(s):
dihydroxy(dioxo)tungsten
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About This Item
Linear Formula:
H2WO4
CAS Number:
Molecular Weight:
249.85
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352300
EC Number:
231-975-2
MDL number:
Assay:
99%
Form:
powder
Quality Level
assay
99%
form
powder
density
5.5 g/mL at 25 °C (lit.)
SMILES string
O[W](O)(=O)=O
InChI
1S/2H2O.2O.W/h2*1H2;;;/q;;;;+2/p-2
InChI key
CMPGARWFYBADJI-UHFFFAOYSA-L
General description
Tungstic acid may be prepared by either digesting tungstate of lime or by treating tungsten with hydrochloric acid. 1
Application
Starting material for the synthesis of a novel dimeric heteropolyoxopeoxotungstate which has potential in further studies of grafted polyoxoperoxo species on silica.
Packaging
5 g packaged in glass bottles; 100 g, 500 g packaged in poly bottles
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signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
13 - Non Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Piquemal, J-Y. et al.
Chemical Communications (Cambridge, England), 473-473 (1997)
Renagul Abdurahman et al.
Analytica chimica acta, 658(1), 63-67 (2010-01-20)
In this study, a sensitive optical waveguide (OWG) sensor for the detection and identification of volatile organic compounds (VOCs) was reported. The sensing membrane is constructed by immobilization of peroxopolytungsten acid (PTA) thin film over a single-mode potassium ion (K(+))
Analysis of ethchlorvynol (Placidyl): evaluation of a comparison performed in a clinical laboratory.
R R Bridges et al.
Journal of analytical toxicology, 8(6), 263-268 (1984-11-01)
Common techniques for analyzing ethchlorvynol (Placidyl) by colorimetry and gas liquid chromatography are evaluated. Matrix effects are thoroughly examined to determine their contribution to the validity of results.
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 223328-100G | 04061838778321 |
| 223328-500G | 04061838138415 |