Bayville Chemical Supply Company Inc 70-G East Jefryn Boulevard Deer Park, New York, 11729 USA Telephone: 631-586-4309 Fax: 631-254-5591 E-Mail: info@bayvillechemical.net
Bayville Chemical Supply Company Inc70-G East Jefryn BoulevardDeer Park, New York, 11729  USA           Telephone: 631-586-4309      Fax: 631-254-5591      E-Mail: info@bayvillechemical.net 

DARVAN® Dispersing Agents Comparison (Darvan C-N and Darvan 821A)

DARVAN® products are highly effective dispersing agents used to lower the viscosity of particulate slurries and to inhibit the settling of particle solids.  When finely divided solids are dispersed in water, there is a tendency for particles to form agglomerates or flocs.  The addition of DARVAN® dispersant increases the strength of the atomic charge on the particles causing them to repel one another and remain dispersed.  The resulting dispersion has more fluidity, stability and smoothness.  For example, pigment suspensions develop greater color strength, additive concentrates remain stable and fluid, pesticide sprays maintain maximum activity, impact grinding achieves maximum efficiency, and ceramic bodies attain optimal rheology. 

 

Typical property comparison for DARVAN C-N and DARVAN 821A

 

 

Form

Solids

MW

ph*

Moisture

Foaming

Ash

Sodium

DARVAN C-N

liquid

25%

15,000

7.5-9.0

-

None

<0.04%

<70 ppm

DARVAN 821A

liquid

40%

3,500

7.0-8.0

-

none

<0.01%

<50 ppm

* 1% solution

 

APPLICATIONS

DARVAN C-N and DARVAN 821A are both used for Specialty Ceramics requiring low sodium and in Spay Dried Slurries.

 

DARVAN C-N is recommended for use in the preparation of casting slips from high oxide electronic bodies where minimum sodium content is desired.

DARVAN C-N is also used to make slurries of ferrites.

 

The amount of DARVAN® Dispersing agent required for dispersant and stabilization applications will vary with the composition of the product.  Simple experimentation will determine the proper amount for each specific use.  Usually, the concentration required is between 0.25% and 5.0%, based on the weight of the ingredient being dispersed.  The optimal amount of dispersant can be determined by the dispersant demand curve method.  A copy of this method is available upon request.

 

DARVAN is a registered trademark of R.T. Vanderbilt Company, Inc.

Where to Find Us:

Bayville Chemical
70 East Jefryn Boulevard
Suite G
Deer Park, NY 11729

e-mail: info@bayvillechemical.net
Phone: 631 586-4309

What's New

New larger location

As of August 2014, we have moved to this new, larger, modern facility to better service your needs.

 



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