Phosphotungstic Acid LR/AR

Phosphotungstic Acid LR/AR is a chemical compound which is most commonly utilized as a homogenous catalyst for various reactions. It has molecular formula H₃PW₁₂O₄₀ with the molar mass of 2880.2 g/mol in anhydrous form. This compound is also used for precipitation of various dyes under controlled conditions. It is known as the universal precipitant for polar proteins hence is used in certain analytical procedures in this sector. Phosphotungstic Acid LR/AR appears as white to yellowish green crystalline powder with a melting point of about 89 degrees Celsius.

Key Features:

• Used as a uniform catalyst for reactions
• Utilized for dyes precipitation
• Employed in varied analytical processes
• Can be availed in yellowish green to white colored powder

Product Details:

• Product Name : Phosphotungstic Acid LR/AR
• Other names : Tungstophosphoric acid (TPA), Phosphotungstic acid (PTA, PWA) 12-Phosphotungstic acid, 12-Tungstophosphoric acid, Dodecatungstophosphoric acid
• CAS Number : 12501-23-4
• Chemical formula : H₃PW₁₂O₄₀
• Molar mass : 2880.2 g/mol (anhydrous)
• Melting point : 89 C (192 F; 362 K) (hydrate)
• Appearance (Colour) : colorless-grayish or slightly yellow-green crystals
• Appearance (Form) : Crystalline powder
• Loss on ignition : max. 16%
• Chloride (CI) : max. 0.001%
• Sulphate (SO₄) : max. 0.005%