1.00582

Tungstophosphoric acid hydrate

cryst. EMPLURA^®

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

Properties

• Quality Segment: 200
• product line: EMPLURA^®
• 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^-): ≤0.01%, sulfate (SO₄^2-): ≤0.01%
• cation traces: Cu: ≤0.001%, Fe: ≤0.002%, Pb: ≤0.005%
• 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

Analysis Note

Chloride (Cl): ≤ 0.01 %
Sulfate (SO₄): ≤ 0.01 %
Cu (Copper): ≤ 0.001 %
Fe (Iron): ≤ 0.002 %
Pb (Lead): ≤ 0.005 %
Loss on ignition (750 °C): ≤ 17 %

Legal Information

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

Safety Information

• pictograms: GHS05,GHS07,GHS09
• signalword: Danger
• hcodes: H302 - H314 - H411
• pcodes: 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
• Storage Class: 8A - Combustible, corrosive hazardous materials
• wgk: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable