Polyphosphoric acid

• Category :

  Catalyst and Auxiliary

• Synonyms :

  Polyphosphoric acids;Superphosphoric Acid;PolyphosphoricacidPOviscousliq;Tetraphosphoric acid;PPA;

• CAS NO :

  8017-16-1

• EC NO :

  232-417-0

• Molecular Formula :

  (H)_n+2·(P)n·(O)_3n+1

• Molecular Weight :

  337.93

• Main Specifications :

• Product description :

  1. Short name: PPA

  2. Molecular formula: H₆P₄O₁₃

  3. Molecular weight: 337.93

  4. Classification of hazardous materials: GB8.1-81505

  5.Uses:
  as cyclizing agent and acylating agent in organic synthesis; analytical reagent.

  6.Properties:
  Clear colorless viscous liquid, deliquescent, soluble in water with hydrolysis to phosphoric acid.

  7.Hazards Identification:
  Generally non-flammable, but may reacts vigorously with H foaming agent and cause fire. Low corrosive.

  8.Fire fighting measures: Wear acid proof protective gear. Extinguish fire with water.
  First aid measures:
  Eye: Flush eyes with plenty of water. Get medical aid.
  Skin: Flush skin with plenty of water. Get medical aid.
  Ingestion: Give water. Get medical aid.
  Packaging: Plastic barrel or glass bottle.
  Label: Corrosive

  9.Storage & Handling:
  Store in a cool, dry, well-ventilated area away from incompatible substances, Keep away from alkali, toxic or corrosive substances, Handle with care, Wear acid proof protective geat.

  10.Accidental Release Measures:
  Wear full protective gear. Neutralize the spills with sodium carbonate solution.

  11. Quantity index sign:

  Item	Index
  	Industrial grade	Food grade
  Assay	≥115%	≥116%
  Assay (P2O5)%	≥84%	≥84%
  Sulphate	0.01	0.002
  Glue degree	35000	35000
  Colour degree	50	20
  Heavy metals with (the Pb allounts)	≤0.01	≤0.003
  Fe	≤0.01	≤0.003
  As	≤0.01	≤0.005

  
  12.Packing and shipping:
  Domestic sale: 40kg, export sales:30kg, packed in plastic pail. It should be stored in cool, draughty place. It should be seperated from oxidant of inflammable material and should not be mixed with alkaline substance.

• Molecular Structure :