Solvent Red 26
 | |
| Names | |
|---|---|
| Other names
Benzidine Yellow 10G, Sanyo Pigment Yellow 8105 | |
| Identifiers | |
| 4477-79-6 | |
| 3D model (Jmol) | Interactive image |
| ECHA InfoCard | 100.022.508 |
| |
| Properties | |
| C25H22N4O | |
| Molar mass | 394.48 g·mol−1 |
| Appearance | Red solid |
| Low | |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Solvent Red 26, also known as C.I. 26120, is a purplish red synthetic azo dye. It is soluble in oils and insoluble in water.
Its main use is as a standard fuel dye in the US mandated by the US IRS to distinguish low-taxed or tax exempt heating oil from automotive diesel fuel, and by the EPA to mark fuels with higher sulfur content; it is however increasingly replaced with Solvent Red 164, a similar dye with longer alkyl chains, which is better soluble in hydrocarbons. [1] The concentration required by IRS is a spectral equivalent of 3.9 pounds per 1000 barrels, or 11.13 mg/l, of Solvent Red 26 in solid form; the concentrations required by EPA are roughly 5 times lower.
See also
References
- ↑ http://www.chevron.com/products/prodserv/fuels/bulletin/diesel/L2_3_9_rf.htm Archived May 10, 2005, at the Wayback Machine.
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