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Supelco

Tungstophosphoric acid hydrate

cryst. EMPLURA®

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

Quality Level

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 (SO42-): ≤0.01%

cation traces

Cu: ≤0.001%
Fe: ≤0.002%
Pb: ≤0.005%

storage temp.

15-25°C

InChI

1S/H3O4P.H2O.36O.12W/c1-5(2,3)4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/h(H3,1,2,3,4);1H2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

InChI key

AVFBYUADVDVJQL-UHFFFAOYSA-N

Related Categories

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

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Dam. 1 - Skin Corr. 1C

Storage Class

8A - Combustible, corrosive hazardous materials

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable


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