Titanium Dioxide 620 vs. Titanium Dioxide 630

Attribute	Titanium Dioxide 620	Titanium Dioxide 630
Chemical Formula	TiO2	TiO2
Particle Size	620 nm	630 nm
Color	White	White
Applications	Paints, coatings, plastics	Cosmetics, sunscreens

Introduction

Titanium dioxide is a widely used white pigment in various industries, including paints, coatings, plastics, and cosmetics. Two common types of titanium dioxide are Titanium Dioxide 620 and Titanium Dioxide 630. While both are used for similar applications, they have distinct attributes that make them suitable for different purposes.

Particle Size

One of the key differences between Titanium Dioxide 620 and Titanium Dioxide 630 is their particle size. Titanium Dioxide 620 typically has a smaller particle size compared to Titanium Dioxide 630. This difference in particle size can impact the opacity and brightness of the pigment when used in various applications. Titanium Dioxide 620 is often preferred for applications where a finer particle size is desired for better coverage and color intensity.

Opacity

Opacity is an important attribute of titanium dioxide pigments, as it determines the ability of the pigment to cover underlying surfaces. Titanium Dioxide 630 is known for its high opacity, making it a popular choice for applications where maximum coverage is required. On the other hand, Titanium Dioxide 620 may have slightly lower opacity due to its smaller particle size, but it can still provide excellent coverage when used in the right formulations.

Color Tone

Another factor to consider when comparing Titanium Dioxide 620 and Titanium Dioxide 630 is their color tone. Titanium Dioxide 630 tends to have a cooler, bluer undertone, which can be beneficial for achieving certain shades in paints and coatings. In contrast, Titanium Dioxide 620 may have a warmer, more neutral undertone, making it suitable for applications where a warmer color tone is desired.

Surface Treatment

Surface treatment is a process used to modify the surface properties of titanium dioxide pigments, such as improving dispersibility and enhancing compatibility with other ingredients. Titanium Dioxide 630 is often surface-treated to improve its performance in various applications, while Titanium Dioxide 620 may be used without surface treatment in some formulations. The choice of surface treatment can impact the overall performance of the pigment in a given application.

Application

When selecting between Titanium Dioxide 620 and Titanium Dioxide 630, it is important to consider the specific requirements of the application. Titanium Dioxide 630 is well-suited for applications where high opacity and a cooler color tone are desired, such as in architectural paints and coatings. On the other hand, Titanium Dioxide 620 may be preferred for applications where a finer particle size and warmer color tone are more suitable, such as in cosmetics and plastics.

Conclusion

In conclusion, Titanium Dioxide 620 and Titanium Dioxide 630 are both valuable white pigments with distinct attributes that make them suitable for different applications. While Titanium Dioxide 620 may offer a finer particle size and warmer color tone, Titanium Dioxide 630 is known for its high opacity and cooler undertone. By understanding the differences between these two pigments, manufacturers can make informed decisions when selecting the most appropriate titanium dioxide for their specific needs.