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Technical Data Sheet
Eastman™ Choline Chloride 70


Chemical Synonym
  • (2-Hydroxyethyl) Trimethylammonium Chloride; Choline Chloride
Applications
  • Upstream O&G-stimulation
Key Attributes
  • Fully compatible with typical drilling muds and hydraulic fracturing fluids
  • High performing clay stabilizer for water-based fluids – 3 times more effective than KCl
  • Safe chemical with excellent environmental profile

Product Description

Choline Chloride 70 can be used as a clay stabilizer, whose function it is to prevent clay swelling in the shale rocks and minimize the migration of clay fines and can replace materials such as quaternary ammonium salts and KCl.

Eastman produces Choline Chloride as an aqueous solution: a clear, to light amber and nearly odorless liquid. The material comes in a variety of concentrations, the most common ones being 70% and 75%.

Choline Chloride can be used as one of the chemical additives in fracturing fluids.



Typical Properties

PropertyTypical Value, Units
General
Molecular FormulaC5H14CINO
Molecular Weight139.6 g/mol
Crystallization Pointa-30 °C
Density 
     @ 20°C1.09 g/cm3
ViscositybVery temperature dependent

aThe crystallization point of liquid Choline Chloride depends on the concentration of the product.
bViscosity curve can be obtained at request.



Methods of Analysis
In order to determine the exact amounts of choline, we recommend to use a selective method of analysis, for example the Reinecke Salt Gravimetric Method or Ion Chromatography.

Ion Chromatography is a method utilizing the ionizing characteristics of choline. This method can measure the exact amount of Choline Chloride using ionic interactions between the positive ions and negative ions. Also it can detect non-reactive ingredients such as TMA and TMA.HCl and can be used as a test for quality of Choline Chloride products.

When analyzing Choline Chloride with a standard Volhardt method (= chloride method), this common salt will be calculated as Choline Chloride, even though the content of choline is significantly lower than stated.



Packaging
  • Bulk: roadtanker
  • IBC containers ((1110 kg net)


Storage

Because Choline Chloride has a corroding effect on blank steel, storage in appropriate materials such as special stainless steel, polyethylene or glass fiber reinforced containers is necessary.

Handle in accordance with good industrial hygienic and safety procedures.

Breathing, eye and skin protection shall be used during handling.

Shelf-life is 24 months (2 years) from production date when stored in closed drums or containers at room temperature.




Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.