ANNEX I
E 320 BUTYLATED HYDROXYANISOLE (BHA)
Synonyms | BHA |
Definition | |
Chemical names | 3-Tertiary-butyl-4-hydroxyanisole |
A mixture of 2-tertiary-butyl-4-hydroxyanisole and 3-tertiary-butyl-4-hydroxyanisole | |
Einecs | 246-563-8 |
Chemical formula | C11H16O2 |
Formula weight | 180,25 |
Assay | Content not less than 98,5 % of C11H16O2 and not less than 85 % of 3-tertiary-butyl-4-hydroxyanisole isomer |
Description | White or slightly yellow crystals or waxy solid with a slight aromatic smell |
Identification | |
| Insoluble in water, freely soluble in ethanol |
| Between 48 °C and 63 °C |
| Passes test for phenol groups |
Purity | |
Sulphated ash | Not more than 0,05 % after calcination at 800 ± 25 °C |
Phenolic impurities | Not more than 0,5 % |
Specific absorption | (290 nm) not less than 190 and not more than 210 |
Specific absorption | (228 nm) not less than 326 and not more than 345 |
Arsenic | Not more than 3 mg/kg |
Lead | Not more than 5 mg/kg |
Mercury | Not more than 1 mg/kg |