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Label & SDS

EPA Label: link

Registration information

  • U.S. EPA Registration number: 5009-56
  • U.S. EPA Status: CANCELLED

Description

'Welchem Microbiocide 53w' is a microbicide/microbistat. Its Federal EPA registration number is: 5009-56. It was originally approved by EPA on 09 Aug 1984. Its registration got cancelled on 19 Jul 1995. It has a 'Danger' signal word. It has the following active ingredients: 2-Methyl-3(2H)-isothiazolone and 5-Chloro-2-methyl-3(2H)-isothiazolone. It's approved for 1 sites including secondary oil recovery injection water. It is also approved for 2 pests and pest groups including but not limited to slime-forming bacteria and sulfate-reducing bacteria.

Original registration date:

  • 09 Aug 1984

Cancellation date:

  • 19 Jul 1995

Alternative names:

  • WELCHEM MICROBIOCIDE 53WActive

Registrant:

  • PETROLITE CORPORATION
  • Address:
    12645 W. Airport Blvd.
    Sugar Land, TX 77478

Active ingredients:

  • 2-methyl-3(2h)-isothiazolone 0.35%
  • 5-chloro-2-methyl-3(2h)-isothiazolone 1.15%
  • Other ingredients 98.5%

Signal word:

  • Danger

Product type:

  • Microbicide/microbistat

Formulation:

  • Ready-to-Use Solution

Registered target pests:

  • Slime-forming bacteria
  • Sulfate-reducing bacteria

Registered target sites:

  • Secondary oil recovery injection water