Chlorinated Organics

MAXISTAB AA Stabilizer For NEU-TRI Solvent

MAXISTAB™ AA stabilizer is a specially blended formulation of stabilizers for use with NEU-TRI™ solvent. NEU-TRI solvent is a vapor degreasing grade of Trichloroethylene. During use, vapor degreasing solvents are subjected to numerous environmental stresses which can lead to solvent breakdown and acidic conditions. Stabilizers are added to vapor degreasing grades of chlorinated solvents to neutralize acidic conditions and allow the solvent to continue to function properly. In low emission degreasing systems, stabilizers are depleted faster than they are replenished by the addition of fresh solvent. MAXISTAB AA stabilizer for NEU-TRI solvent can be used to restabilize the solvent in these systems.

See the Safety Data Sheet for safety and handling information. 24-hour emergency phone number: 989-636-4400.

For additional technical assistance: 1-800-447-4369.

MAXISTAB AA stabilizer for NEU-TRI solvent is available in 55 gallon drums and 5 gallon pails. To order, call: 1-800-232-2436, ext. 1348 or 1352, or contact your Dow representative.

Acid Acceptance Adjustment for NEU-TRI Solvent

Using the information from the Acid Acceptance Test, and the volume of solvent in the degreaser system, find the appropriate amount of MAXISTAB AA stabilizer for NEU-TRI solvent to add to the system. (See Chart 1 below.)

MAXISTAB should be added to the solvent reservoir so that it is quickly mixed into the solvent and will be rapidly distributed throughout the system.

After making the addition, allow the solvent to mix throughout the system, then retest the acid acceptance levels.

Acid Acceptance Levels

The optimal operating range for acid acceptance values of NEU-TRI solvent should be between 0.10 and 0.30.

MAXISTAB AA stabilizer has been specially designed for acid acceptance adjustments of NEU-TRI solvent.

Acid Acceptance Test Result Action Required Test Frequency Recommended
Acceptable Greater than .08 acid acceptance value Continue normal operations Test 1 to 2 times per week
Marginal Reserve alkalinity values between .04 and .08 Add MAXISTAB for acid acceptance Test daily until corrected
Unacceptable Less than .04 acid acceptance value Add MAXISTAB for acid acceptance or change out solvent Test daily until corrected
 

Chart1. Acid Acceptance Adjustment

  • Determine the acid acceptance of the solvent using the Dow Acid Acceptance Test Kit.
  • Determine the volume of solvent in the degreaser system.
  • Using the volume from the graduated cylinder or the acid acceptance value, read the intersection of the line. Read the gallons conversion factor located on the right of the chart. The conversion factor times the volume of solvent in the degreaser determines how much MAXISTAB AA stabilizer for NEU-TRI solvent to add to the system.

  • For example, if you are operating a 125 gallon vapor degreaser and you obtain an acid acceptance test result of 9 ml (.05 acid acceptance value):

    (Gallons of solvent in the degreaser system) X (Conversion Factor)
    Volume reading of 9 ml or acid acceptance value of .05 =
    .08 gallon conversion factor (cf)
    0.08 (cf) X 125 gallons of solvent = 10 gallons of MAXISTAB AA stabilizer


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