1.00583
Tungstophosphoric acid hydrate
for analysis EMSURE®
Synonym(s):
Tungstophosphoric acid hydrate, Phosphotungstic acid
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
100 g | Estimated to ship onOctober 21, 2026 | $208.00 |
250 g | Estimated to ship onOctober 21, 2026 | $985.00 |
About This Item
Quality Segment
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 (SO42-): ≤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
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
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
Legal Information
1 of 1
This Item | |||
|---|---|---|---|
| description for analysis EMSURE® | description cryst. EMPLURA® | description suitable for microscopy | description 99.995% trace metals basis (Purity excludes up to 300 ppm Si) |
| Quality Level 300 | Quality Level 200 | Quality Level 200 | Quality Level 100 |
| form solid | form solid | form powder or crystals | form powder or crystals |
| solubility water: soluble at 20 °C | solubility water: soluble at 20 °C | solubility water: 0.5 g/10 mL, clear, colorless | solubility - |
| storage temp. 15-25°C | storage temp. 15-25°C | storage temp. room temp | storage temp. - |
| pH 1.3 (20 °C, 20 g/L in H2O) | pH 1.3 (20 °C, 20 g/L in H2O) | pH 2 (20 °C) | pH - |
| cation traces Cu: ≤10 ppm, K: ≤200 ppm, Pb: ≤20 ppm, Fe: ≤20 ppm, Na: ≤200 ppm | cation traces Cu: ≤0.001%, Fe: ≤0.002%, Pb: ≤0.005% | cation traces Ca: ≤20 mg/kg, Cu: ≤5 mg/kg, Fe: ≤20 mg/kg, K: ≤50 mg/kg, Na: ≤50 mg/kg, Pb: ≤20 mg/kg, Zn: ≤5 mg/kg | cation traces - |
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Skin Corr. 1C
Storage Class
8B - Non-combustible corrosive hazardous materials
flash_point_f
Not applicable
flash_point_c
Not applicable
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