1.00583

Tungstophosphoric acid hydrate

for analysis EMSURE^®

• Synonyme(s) : Tungstophosphoric acid hydrate, Phosphotungstic acid
• Formule linéaire : H₃[P(W₃O₁₀)₄] · x H₂O
• Numéro CAS: 12501-23-4
• Poids moléculaire : 2880.05 (anhydrous basis)
• UNSPSC Code: 12352301
• EC Index Number: 215-682-7
• NACRES: NA.21
• MDL number: MFCD00149915
• Form: solid

Propriétés

• Quality Segment: 300
• product line: EMSURE^®
• form: solid
• potency: 3300 mg/kg LD₅₀, oral (Rat)
• loss: ≤17% loss on ignition, 750 °C
• pH: 1.3 (20 °C, 20 g/L in H₂O)
• mp: 107 °C
• solubility: water: soluble at 20 °C
• bulk density: 960 kg/m³
• anion traces: chloride (Cl^-): ≤50 ppm, sulfate (SO₄^2-): ≤100 ppm
• cation traces: Cu: ≤10 ppm, Fe: ≤20 ppm, K: ≤200 ppm, Na: ≤200 ppm, Pb: ≤20 ppm
• storage temp.: 15-25°C
• SMILES string: [W](=O)(=O)=O.[W](=O)(=O)=O.[W](=O)(=O)=O.[W](=O)(=O)=O.[W](=O)(=O)=O.[W](=O)(=O)=O.[W](=O)(=O)=O.[W](=O)(=O)=O.[W](=O)(=O)=O.[W](=O)(=O)=O.[W](=O)(=O)=O.[W](=O)(=O)=O.[P](=O)(O)(O)O.O
• InChI: 1S/H3O4P.H2O.36O.12W/c1-5(2,3)4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/h(H3,1,2,3,4);1H2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
• InChI key: AVFBYUADVDVJQL-UHFFFAOYSA-N

Description

Application

• Calixarene based portable sensor for the direct assay of indiscriminate ephedrine content of weight loss herbal preparations.: Tungstophosphoric acid hydrate is utilized as a proton conductor in the development of a calixarene-based sensor, enabling precise detection of ephedrine in herbal products, showcasing its application in analytical chemistry for public health safety (Wahba et al., 2021).


• A New Solid-State Proton Conductor: The Salt Hydrate Based on Imidazolium and 12-Tungstophosphate.: This article presents tungstophosphoric acid hydrate as a key component in a novel solid-state proton conductor, offering significant advancements in materials science for fuel cells and other energy applications (Martinelli et al., 2021).


• Location, acid strength, and mobility of the acidic protons in Keggin 12-H3PW12O40: a combined solid-state NMR spectroscopy and DFT quantum chemical calculation study.: The research investigates the acidic properties and proton mobility of tungstophosphoric acid hydrate using advanced NMR and DFT techniques, providing valuable insights for catalysis and materials science (Yang et al., 2005).

Analysis Note

Chloride (Cl): ≤ 50 ppm
Sulfate (SO₄): ≤ 100 ppm
Cu (Copper): ≤ 10 ppm
Fe (Iron): ≤ 20 ppm
K (Potassium): ≤ 200 ppm
Na (Sodium): ≤ 200 ppm
Pb (Lead): ≤ 20 ppm
Loss on ignition (750 °C): ≤ 17 %

Other Notes

Replaces: PX1055; PX1055-4

Legal Information

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Informations sur la sécurité

• Pictogrammes: GHS05,GHS07,GHS09
• Mot-clé: Danger
• Codes de danger: H302,H314,H411
• Mentions de précaution: P260 - P273 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Skin Corr. 1C
• Classe de stockage: 8B - Non-combustible corrosive hazardous materials
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable