ASTM International - ASTM D4677-87(2013)
Standard Classification for Rubber Compounding Materials—Titanium Dioxide
| Organization: | ASTM International |
| Publication Date: | 1 November 2013 |
| Status: | inactive |
| Page Count: | 2 |
| ICS Code (Rubber compounding ingredients): | 83.040.20 |
significance And Use:
3.1 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.
3.2 It is chemically inert and... View More
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. Table 1
TABLE 1 Properties of Titanium Dioxide (By Type)
| Test Method | Type I (Anatase) | Type II (Rutile) | Type III (Rutile) | |
| TiO
2, min, % | D1394 | 95 | 92 | 85 |
| pH | D1208 | 7-8.0 | 7-8.0 | 7-8.0 |
| Coarse particles, max, % | D185 | 0.2 | 0.2 | 0.2 |
| Moisture, max,% | D280 | 0.7 | 0.7 | 1.5 |
| Rutile
A | D3720 | 1 % max | 99 % min | 99 % min |
| Tint Strength
B | ... | ... | ... | ... |
| Brightness
B | ... | ... | ... | ... |
A Percent rutile as a percent of total TiO 2 content.B Test methods to be developed and agreed upon by supplier and user. A basic white sidewall formula could be chosen to generate inherent color properties.
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