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Paratene M390

Paratene® M390 Inhibited Organic Acid

Acids are the most commonly used chemicals for the removal of scales and deposits from industrial systems. Paratene M390 is a strong inhibited organic acid that combines the best properties of inorganic acids with the benefits of the weaker organic acids. It is safe to use stainless steel and aluminum replacing the use of hydrochloric or sulphuric acid for cleaning and dip tank applications.  

Paratene M390 can be used in cleaning process equipment, acid pickling, oilwell stimulation or other forms of equipment clean out.

Paratene M390 is a one-step organic acid, as the inhibitor has already been blended into the solution. The inhibitor is stable in the acid blend and does not “oil out” or precipitate out of solution.

Any acid used in cleaning must meet several criteria:

- Utility: The acid must dissolve the scale or deposit in question
- Efficiency: The acid must dissolve the scale by using the minimum of chemical at a rapid rate
- Compatibility: The acid must not damage the equipment or process
- Safety: The acid must be easy to handle, and simple to dispose of


Physical Properties Comparison

The following table shows the molecular weights and Ka values for several common acids. The hydrogen ion activity of an acid solution is related to the Ka value and the acid concentration.

Acid Ka Value Molecular Weight (g/mole)
Paratene M390 8.30E+01 96.11
Hydrochloric 1.00E+03 36.5
Sulphuric 1.00E+03 98
Phosphoric 7.30E-03 97
Sulphamic 1.02E-01 97
Formic 1.77E-04 46
Acetic 1.75E-05 60
Citric 7.50E-04 210.14

As can been seen above, the strong acids - hydrochloric, sulphuric, and M390 have substantially higher Ka values than the other acids.


Features and Advantages

- Low Toxicity
- Contains No Chlorides: Safe on stainless steel
- Inhibitor stabilized acid blend
- High solubility limits for cations
- High performance 
- Highly concentrated
- Biodegradable 
- Versatile


More information can be found on this product's Brochure, Technical Data Sheet (TDS) and Material Safety Data Sheet (MSDS), which are available upon request.

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