Haviland Products Co.

421 Ann St. N.W.

Grand Rapids, MI 49504-2075

(616) 361-6691 Fax (616) 361-9772

HP Tri-V Black 3000 Page 2 of 3

ANALYSIS:

  1. Pipette a 10 ml sample of the operating solution into a 250 ml Erlenmeyer flask and add approximately 100 mls of DI water.
  2. Adjust pH of the solution with dilute caustic soda to a pH of 10.0-11.0
  3. Add 2 mls of 35% Hydrogen Peroxide
  4. Boil the solution for approximately 15-30 minutes, until all of the peroxide is dissipated.
  5. Cool the solution to Room Temperature and add 25-50 mls of DI water.
  6. Add 10 mls of 50 % Sulfuric Acid
  7. Add 10 mls of 10% Potassium Iodide solution
  8. Titrate the brown solution to a straw yellow color with 0.1N Sodium Thiosulfate solution.
  9. Add 1-2 mls of freshly prepared 1% starch solution and continue titrating with the Thiosulfate until the blue color disappears
  1. Calculation:mls 0.1 NSodium Thiosulfate solution X 0.38 = % by/vol HP Tri-V Black 3000

Note: Additional analysis may be performed by atomic absorption spectroscopy.

Please see your Haviland Products Company Technical Representative for details.

OPERATING NOTES:

Routine additions via metering pump or regular “over the side” tank additions should be incorporated into the operating procedures. It is not wise to allow the solution to become almost depleted and “recharged” with large amounts of chemistry. Addition rate should be determined empirically through analysis of chromating bath with a correlation of the amount of work going through the line.

WASTE TREATMENT NOTES:

The addition of calcium chloride and an iron source such as Ferric Chloride or Ferrous Sulfate will help break the chromium complexes that exist in the product.

HP Tri-V Black 3000 Page 3 of 3

CAUTION:

HP TRI-V BLACK 3000 SOLUTIONS ARE ACIDIC. CARE SHOULD BE TAKEN WHEN HANDLING BOTH CONCENTRATED MATERIALS AND THEIR SOLUTIONS.

WEAR EYE PROTECTION AND RUBBER OR NEOPRENE GLOVES WHEN HANDLING.

CONSULT THE MATERIAL SAFETY DATA SHEET FOR FURTHER DETAILS AND PRECAUTIONS.

STORAGE:

HP TRI-V BLACK 3000 can freeze if exposed to below freezing temperatures for prolonged periods of time. Store above freezing.

If freezing should occur, the container should be warmed and mixed thoroughly before using. Samples should be sent to HAVILAND PRODUCTS COMPANY for analysis.

NON-WARRANTY:

The data contained in this bulletin is believed by HAVILAND PRODUCTS COMPANY to be accurate, true and complete. Since however, final methods of use of these products are in the hands of the customer and beyond our control, we cannot guarantee that the customer will obtain the results described in this bulletin, nor can we assume any responsibility for the use of this product by the customer in any process which may infringe the patents of third parties.