Product Overview
Tertiary Butylhydroquinone (TBHQ) is a phenolic antioxidant synthesized from hydroquinone and tert-butyl alcohol. It is a white crystalline powder that is highly effective in inhibiting oxidative deterioration of fats, oils, and fat-containing products. TBHQ is commonly used in the food industry to stabilize cooking oils, snack foods, and baked goods, ensuring prolonged freshness.
Chemical and Physical Properties
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Chemical Formula: C10H14O2
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Molecular Weight: 166.22 g/mol
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Appearance: White crystalline powder
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Melting Point: 123 – 127°C
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Solubility: Slightly soluble in water, soluble in organic solvents such as alcohol and ether
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Odor and Taste: Odorless with a faint phenolic taste
Applications and Functional Benefits
TBHQ is used for:
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Preventing oxidation and rancidity in edible oils, fats, and fat-containing foods
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Extending shelf life of processed snacks, fried foods, and baked products
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Preserving cosmetics and pharmaceuticals sensitive to oxidation
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Enhancing product stability during storage and transport
Due to its high potency, only small quantities are needed to achieve effective antioxidant protection.
Quality Specifications
| Parameter | Specification | Typical Result |
|---|---|---|
| Appearance | White crystalline powder | Complies |
| Purity (Assay) | ≥ 99.0% | 99.2% |
| Melting Point | 123 – 127°C | 125°C |
| Moisture Content | ≤ 0.5% | 0.3% |
| Heavy Metals (Lead) | ≤ 10 ppm | < 5 ppm |
| Residual Solvents | Complies with standards | Complies |
Sensory Profile
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Appearance: White crystalline powder
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Odor: Odorless
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Taste: Faint phenolic
Packaging and Storage
TBHQ is typically packaged in moisture-proof, airtight containers such as 25 kg drums or bags. It should be stored in a cool, dry place away from direct sunlight, heat, and moisture to maintain stability and extend shelf life, generally up to 2 years.
Regulatory Status
TBHQ is approved by FDA, EFSA, JECFA, and other regulatory authorities worldwide within specified usage limits. It is Generally Recognized As Safe (GRAS) when used according to guidelines but must be used within recommended concentrations due to its synthetic nature.
Conclusion
Tertiary Butylhydroquinone (TBHQ) is a potent synthetic antioxidant essential for preserving fats and oils in food and other products. Its efficacy at low concentrations makes it a valuable ingredient for extending shelf life and maintaining product quality.
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