Tungstophosphoric acid hydrate


Catalogue Number100583
ReplacesPX1055; PX1055-4
SynonymsPhosphotungstic acid
DescriptionTungstophosphoric acid hydrate

Product Information

CAS number12501-23-4
EC number215-682-7
Hill FormulaH₃O₄₀PW₁₂ * x H₂O
Chemical formulaH₃[P(W₃O₁₀)₄] * x H₂O
Molar Mass2880.05 g/mol (anhydrous)
HS Code2811 19 80
Quality LevelMQ300


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 %

Safety Information

Hazard Pictogram(s)Hazard Pictogram(s)
Hazard Pictogram(s)
Hazard Pictogram(s)
Hazard Statement(s)H302: Harmful if swallowed.
H314: Causes severe skin burns and eye damage.
H411: Toxic to aquatic life with long lasting effects.
Precautionary Statement(s)P260: Do not breathe dust or mist.
P273: Avoid release to the environment.
P280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection.
P301 + P312: IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell.
P303 + P361 + P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Signal WordDanger
Storage class8B Non-combustible, corrosive hazardous materials
WGKWGK 2 obviously hazardous to water
Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535).