Welchem Microbiocide 53

Label & SDS

EPA Label: link

Registration information

• U.S. EPA Registration number: 5009-55
• U.S. EPA Status: CANCELLED

Description

'Welchem Microbiocide 53' is a microbicide/microbistat. Its Federal EPA registration number is: 5009-55. It was originally approved by EPA on 03 Aug 1984. Its registration got cancelled on 31 Aug 1994. 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 2 sites including cooling tower water and secondary oil recovery injection water. It is also approved for 4 pests and pest groups including but not limited to algae, slime-forming bacteria, slime-forming fungi, and sulfate-reducing bacteria.

Original registration date:

• 03 Aug 1984

Cancellation date:

• 31 Aug 1994

Alternative names:

• WELCHEM MICROBIOCIDE 53Active

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:

• Algae
• Slime-forming bacteria
• Slime-forming fungi (paper mills/water systems)
• Sulfate-reducing bacteria

Registered target sites:

• Cooling tower water
• Secondary oil recovery injection water