NALTIC Industrials, LLC

Pyrene 1207-SD

Replaces Oakite Q9, Q10 and 77
A Product of BASF Chemetall US In.
Heavy-Duty Alkaline Cleaner for Ferrous Substrates Pyrene 1207-SD is a liquid, heavy duty, low-foaming, alkaline detergent. It’s specially formulated for fast and thorough spray or immersion cleaning of steel, cast iron and stainless steel. It is particularly effective in cleaning gasoline and diesel engine parts prior to overhaul.

Designed to remove burnt-on oil, grease, carbon, light rust and some paints, Pyrene 1207-SD features strong surfactant penetrating action and soil-dispersing ability for thorough cleaning and rinsing, as well as long solution life for material savings. The special surfactant package in Pyrene 1207-SD is designed to release removed oils, allowing them to float to the surface for easy skimming and disposal.

Pyrene 1207-SD is free of silicates, nonylphenol ethoxylate (NPE) surfactants and solvents and is biodegradable.




Chemical composition alkali, sequestrants, phosphates
Physical form liquid
Odor sweet
Specific gravity 1.27 g/mL
Bulk density 10.58 lb/gal
Viscosity less than 10 cps
Flash point none
Foaming tendency low to moderate depending on operating temperature
behavior in hard water sequesters
Rinsability excellent
Biodegradable surfactants yes
Phosphorous-free no
NPE surfactant-free yes
Normal working temperature 49 – 82 °C (120 – 180 °F)
Normal working concentrations 5 to 10% by volume
Normal concentrations in spray washer 5 to 10% by volume
pH at working concentrations 12.5 -13.5


Pyrene 1207-SD is normally used in spray washers at between 5 and 10% by volume, 120 – 180 ºF (49 – 82 ºC), 10 – 30 psi (0.7 – 2.0 bar) for 60 – 90 seconds.

Pyrene 1207-SD is normally used in immersion tanks at between 5 and 15% by volume, 120 – 180 ºF (49 – 82 ºC) for 5 – 10 minutes. Agitation speeds soil removal.

Exact parameters depend on soils, extent of soil build-up in solution and conveyor line speed.

Pyrene 1207-SD should not be used on aluminum, zinc, copper or brass due to chemical attack.

SOLUTION CONTROL: (Gardotest Procedure 92 or Test Kit OKT9697-90)

1. Pipet a 10 mL sample of the Pyrene 1207-SD solution into an Erlenmeyer flask.
2. Add about 50 mL of deionized water.
3. Add about 3-5 drops of Gardotest Indicator 2 (phenolphthalein) to the sample.
4. Titrate with Gardotest Solution 57 (1 N acid) until the color changes from pink to colorless. Record the number of milliliters used as Free Alkalinity.
5. The solution can be controlled directly by Free Alkalinity, or it can be converted to percent by volume by multiplying the Free Alkalinity by 2.6. Free Alkalinity in ml x 2.6 = Percent by Volume
6. To increase the Free Alkalinity by 1.0 mL, add 2.6 gal of Pyrene 1207-SD per 100 gal (26 liters per 1000 liters).
Bath Life: Please refer to Chemetall Oakite Procedure 123 for free and total alkalinity titrations.

The Chemetall Oakite Electrodeless Conductivity/Concentration Control System and Chemical Metering Pump can be used to monitor and automatically maintain the concentration of this product using conductivity. Oil removal equipment can also be used to extend bath life. Please contact the Chemetall Oakite Process Equipment and Engineering Department for specific recommendations.

Tanks and heating surfaces may be constructed of black iron, steel, stainless steel or other appropriate chemically-resistant material.

Prior to handling and use of any of the materials referenced in this document, the Material Safety Data Sheets should be read and understood by all personnel in contact with these materials.


Dry indoor storage at temperatures between 40 ºF and 100 ºF (4.4 ºC and 37.8 ºC) is recommended, away from any incompatible materials referenced in the Material Safety Data Sheets. All containers should be tightly closed when not in use.


Any disposal of the materials referenced in this document should be in accordance with all applicable federal, state, and local regulations. The process solution can contain components other than those present in the materials as supplied. Analysis of process solutions may be required prior to disposal.