Significance and Use
Titanium dioxide is used in rubber compounding as a colorant to impart whiteness to any desired end product. It is used in sidewalls of automobile tires.
It is chemically inert and slightly basic with a pH of 7.0 to 8.0. The free-chalking, weathering properties of anatase titanium-dioxide provide a (self-cleaning) white appearance in outdoor applications.
1. Scope
1.1 This classification covers the compounding material known as titanium dioxide. It is generally used in rubber compounds to impart whiteness to selected products. Typical chemical and physical properties are included.
1.2 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) 
The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D185 Test Methods for Coarse Particles in Pigments
D280 Test Methods for Hygroscopic Moisture (and Other Matter Volatile Under the Test Conditions) in Pigments
D1208 Test Methods for Common Properties of Certain Pigments
D1394 Test Methods for Chemical Analysis of White Titanium Pigments
D3720 Test Method for Ratio of Anatase to Rutile in Titanium Dioxide Pigments by X-Ray Diffraction
Keywords
anatase; rutile; titanium dioxide; Anatase titanium dioxide; Classification (standards)--rubber; Rubber compounding materials; Titanium dioxide (TiO2); Whiteness index;
ICS Code
ICS Number Code 83.040.20 (Rubber compounding ingredients)
DOI: 10.1520/D4677-87R07
ASTM International is a member of CrossRef.
Citing ASTM Standards
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