Applications.
It is mainly used as food color.
Specification
| Specification | Value |
| Melting point | 3654-3997℃ |
| Boiling point | 4827℃ |
| Solubility g/L | Water insoluble |
| Density | 1.5-1.9g/cm3 |
| Loss on drying | ≦12w/% |
| Carbon content | ≧95w/% |
| Ash | ≦4w/% |
| Colorless in sodium hydroxide | Passed |
| Higher aromatic hydrocarbons | Passed |
| Total arsenic(As) | ≦3mg/kg |
| Lead(Pb) | ≦10mg/kg |
| Cadmium(Ge) | ≦1mg/kg |
| Mercury(Hg) | ≦1mg/kg |