| Parameters | Specification |
| Description | White crystalline powder. Having characteristic odour |
| Solubility | Soluble in alcohol & ether, insoluble in water |
| Melting Range | 126.5°°C to 128.5°C |
| Assay | Min 99% |
| Hydroquinone Content | 0.1% Max |
| Heavy Metals (as Pb) | Max 10 ppm |
| T-Butyl-P-Benzoquinone | Max 0.2% |
| Arsenic (as As) | Max 3 ppm |
| Toluene | Max 0.0025% |
| Moisture | Max 0.5% |
Shelf Life: 2 years
Storage: Store in well-closed, light resistant nonmetallic containers
Usage and application of Tertiary Butyl HydroQuinone (TBHQ):
Tertiary Butyl Hydroquinone (TBHQ) is a synthetic anti-oxidant food additive with E number E319 used to stabilize foods, fats and vegetable oils against oxidative deterioration and thus extending their storage life. TBHQ is largely used in edible oils & fats & related food products. The underlying role of TBHQ is to retard the oxidative deterioration of these products, effectively extending their "shelf life". TBHQ finds use in a variety of products such as Edible oils, essential oils, natural colours, confectionery, peanut butter, powdered dairy products, bakery products, instant noodles, cosmetics, hair oils and many more. TBHQ is particularly effective in stabilising unsaturated fats and oils, especially polyunsaturated frying oils. In frying oils TBHQ not only increases the number of fries possible per batch of oil, it also "carries through" to the fried food, effectively increasing the fried food's shelf life. TBHQ is also used as polymerisation inhibitor for resins & unsaturated polyesters, as an anti-skinning agent in paints and inks.