推薦產品
品質等級
化驗
≥98.0% (calcined substance, T)
形狀
powder
雜質
≤0.2% insoluble matter in NaOH
損耗
≤9.0% loss on ignition
密度
5.5 g/mL at 25 °C (lit.)
SMILES 字串
O[W](O)(=O)=O
InChI
1S/2H2O.2O.W/h2*1H2;;;/q;;;;+2/p-2
InChI 密鑰
CMPGARWFYBADJI-UHFFFAOYSA-L
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一般說明
Tungstic acid may be prepared by either digesting tungstate of lime or by treating tungsten with hydrochloric acid. 1
訊號詞
Warning
危險聲明
危險分類
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
標靶器官
Respiratory system
儲存類別代碼
13 - Non Combustible Solids
水污染物質分類（WGK）
WGK 3
閃點（°F）
Not applicable
閃點（°C）
Not applicable
個人防護裝備
Eyeshields, Gloves, type N95 (US)
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Analytical sciences : the international journal of the Japan Society for Analytical Chemistry, 19(7), 1055-1060 (2003-07-26)
In a weak acid medium, when an isopoly-tungstic acid reacts with berberine to form an ion-association complex, strong resonance Rayleigh scattering (RRS) appears and obvious frequency-doubling scattering (FDS) as well as second-order scattering (SOS) come into being. The scattering peaks
Laura Barrio et al.
The journal of physical chemistry. A, 111(11), 2166-2171 (2007-03-29)
The catalytic system formed by tungstic acid and its complexes with H2O2 and phenylphosphonic acid has been analyzed from the experimental and theoretical points of view. Previous structural studies by XRD proved the validity of the DFT proposed models and
Thierry Barré et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 61(4), 551-557 (2005-01-15)
This study is focused on the composition and the evolution of tungstate ions solutions as a function of pH and increasing concentrations. The Raman analysis showed that, during the titration of the tungstate solutions, WO4(2-), HWO4- ions and probably W2O7(2-)
Multiple reversible protonation of polyoxoanion surfaces: direct observation of dynamic structural effects from proton transfer.
Xikui Fang et al.
Angewandte Chemie (International ed. in English), 46(21), 3877-3880 (2007-04-20)
J W White et al.
Journal - Association of Official Analytical Chemists, 72(6), 907-911 (1989-11-01)
Using the difference in stable carbon isotope ratio between a honey and its protein fraction permits objective evaluation of possible adulteration of honey with small amounts (7-20%) as well as larger amounts of corn or cane sugar. The present uncertainty
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