3820972

Information

• Patent Grant
• 3820972

• References
• Source

• Patent Number

  3,820,972

• Date Filed

  Not available

• Date Issued

  Friday, June 28, 1974
  50 years ago

• CPC

  • C07D201/16 - Separation or purification
  • C05B11/06 - using nitric acid (nitrophosphates)

• US Classifications

  • 071 - Chemistry: fertilizers
  • 540 - Organic compounds