Titanium dioxide solution in oil

  • Thread starter Thread starter SaketIndra
  • Start date Start date
  • Tags Tags
    Chemistry
Click For Summary
SUMMARY

The discussion centers on the preparation of a Titanium Dioxide (TiO2) suspension in oil, specifically using Tronox CR828 as the TiO2 source, ISOPAR M as the solvent, and Sorbitan trioleate as the surfactant. The mixture, comprising 20% TiO2, 75% ISOPAR M, and 5% Sorbitan trioleate, faces stability issues, resulting in clumping and settling after homogenization. Participants emphasize the importance of particle size and the potential need for a suitable dispersant or anti-settling agent to achieve a stable colloidal suspension.

PREREQUISITES
  • Understanding of colloidal chemistry and suspension stability
  • Familiarity with Titanium Dioxide (TiO2) and its applications
  • Knowledge of surfactants, specifically Sorbitan trioleate
  • Experience with oil-based solvents, particularly Isoparaffin (ISOPAR M)
NEXT STEPS
  • Research suitable dispersants for TiO2 suspensions
  • Explore methods for microencapsulation of nanoparticles
  • Investigate the effects of viscosity on suspension stability
  • Learn about magnetophoretic display technologies and their requirements
USEFUL FOR

Chemists, materials scientists, and engineers involved in formulating colloidal suspensions, particularly those working with Titanium Dioxide and nanoparticle applications.

SaketIndra
Messages
2
Reaction score
1
Hello everyone,

I am seeking assistance in preparing a Titanium dioxide solution in oil. Below are the chemical compositions of the solution:

  1. Titanium Dioxide (TiO2): 20% by weight, with the product name Tronox CR828.
  2. Solvent/Oil: Isoparaffin, constituting 75% by weight, with the product name ISOPAR M.
  3. Surfactant: Sorbitan trioleate, comprising 5% by weight.
However, I am encountering an issue where the solution clumps together and settles down in the beaker after homogenization. I'm unsure of what I might be doing wrong.
 
Reply
  • Like
Likes   Reactions: AlexB23
Chemistry news on Phys.org
Technically it is not a solution, but a suspension (or a colloid). Whether it is stable or not depends (between other factors) on the suspended particles size.

Are you 100% sure the recipe guarantees a stable mixture and calls for exactly these brands of components? Such things tend to be highly erratic.
 
Borek said:
Technically it is not a solution, but a suspension (or a colloid). Whether it is stable or not depends (between other factors) on the suspended particles size.

Are you 100% sure the recipe guarantees a stable mixture and calls for exactly these brands of components? Such things tend to be highly erratic.
Hello, you're absolutely correct. This refers to a colloidal solution where TiO2 is intended to be suspended. After conducting some research, I have focused on formulating a microencapsulated suspension of TiO2 and Fe3O4 nanoparticles for use in magnetophoretic displays.
1688104579868.png

While I understand the necessity of using a suitable dispersant and anti-settling agent, I'm facing difficulties in identifying the most appropriate options. If you happen to know any interested individuals or experts, I would be grateful if you could provide their information. I am willing to create a freelancing job request on their preferred platform, and they can assist me in this matter. Please inform me if you have any leads.
 
Isopar M is a fairly low viscosity fluid. Have you tried using something thicker?

Have you tried adding the Fe3O4 to the mixture that you have created and encapsulating it? It may have different properties in that physical configuration.

BoB
 

Similar threads

Exploring End-Use Applications for recycled HDPE from used oil containers
  • · Replies 2 ·
Replies
2
Views
2K
  • Sticky
Physics Forums Global Guidelines
  • · Replies 2 ·
Replies
2
Views
503K