Butylated Hydroxyanisole (BHA) is an antioxidant consisting of a mixture of two isomeric organic compounds, 2-tert-butyl-4-hydroxyanisole and 3-tert-butyl-4-hydroxyanisole.
| Synonym | 3 Tertiary Butyl – 4 Hydroxy Anisole | Molecular Formula | C11H16O2 |
| CAS No | 25013-16-5 | Molecular Weight | 180.25 g/mol |
| Sr. No. | Particulars | Specification |
| 1 | Appearance | White to slight yellow waxy flakes/powder with characteristic odour |
| 2 | Melting Point | 48° C – 63° C |
| 3 | Assay by GC (C11H16O2) | 98.50% Min. |
| 4 | 3- Tert. Butyl-4- Hydroxy Anisole (3 – BHA)(By GC) | 90.00% Min. |
| 5 | Solubility | Freely soluble in alcohol, propylene glycol. Insoluble in water |
| 6 | Arsenic | 3 ppm Max. |
| 7 | Total Heavy Metals (as Pb) | 10 ppm Max. |
| 8 | Iron Content | 5 ppm Max. |
| 9 | Sulphated Ash | 0.01% Max. |