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12501-23-4 - 12-Tungstophosphate hydrate, Reagent Grade - 12-Phosphotungstic acid hydrate - 11827 - Alfa Aesar

11827 12-Tungstophosphate hydrate, Reagent Grade

CAS-Nummer
12501-23-4
Synonyme
12-Phosphotungstic acid hydrate

Größe Preis ($) Menge Verfügbarkeit
50g 80,37
250g 251,70
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12-Tungstophosphate hydrate, Reagent Grade

MDL
MFCD00011342

Chemische Eigenschaften

Formel
H3PO4•12WO3•xH2O
Molmasse
2880.20(anhy)
Form
Powder
Schmelzpunkt
95°
Sensitivität
Moisture & Light Sensitive
Löslichkeit
Soluble in water, dichloromethane, acetonitrile, acetic acid and ionic liquids.

Anwendungen

12-Tungstophosphate hydrate is used in histology as a component for staining of cell specimens. It binds to fibrin, collagen and fibers of connective tissues. It is also used to replace the anions of dyes from these materials. In solution, it acts as a homogeneous catalyst and involved in the hydrolysis of propene to give 2-propanol. It is supported with alumina and silica and act as a heterogeneous catalyst involved in the dehydration of 2-propanol to propene and methanol to hydrocarbons. In analytical chemistry, it is used to precipitate proteins and termed as "universal" precipitant for polar proteins.

Bemerkungen

Hygroscopic. Store in a cool place. Incompatible with strong oxidizing agents and strong bases.

Literaturverweise

Chang, Q.; Li, J.; Gu, D.; Yin, P.; Jiang, H.; Shen, L. Preparation, Characterization, and Conductivity of Polyaniline Doped with 12-Tungstoboric Acid. J. Macromol. Sci. Part B 2015, 54 (4), 381-392.

Zhang, D.; Zhang, Y.; Ma, H.; Yan, H.; Song, Y. Fabrication of a 12-tungstophosphate and cadmium oxide composite film and its properties. Mater. Chem. Phys. 2014, 144 (3), 369-376.

GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H314-H318

Causes severe skin burns and eye damage. Causes serious eye damage.

Sicherheitshinweise: P260-P280-P303+P361+P353-P305+P351+P338-P301+P330+P331-P304+P340-P310-P363-P405-P501a

Do not breathe dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Immediately call a POISON CENTER or doctor/physician. Wash contaminated clothing before reuse. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Weitere Referenzen

Gefahrenklasse
8
Verpackungsgruppe
III
Harmonized Tariff Code
2811.19
TSCA
Yes

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