Butylated Hydroxytoluene (BHT)
ELRASATM – BHT
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Butylated hydroxytoluene, commonly known as BHT, is a synthetic antioxidant that is widely used as a food additive. It is also employed in various industries, including cosmetics, pharmaceuticals, and…
CAS Number
128-37-0
HS Code
2907.19.90
INCI Name
Butylated Hydroxy Toluene (BHT)
Molecular Formula
C₁₅H₂₄O
Butylated Hydroxytoluene (BHT)
ELRASATM – BHT
Butylated hydroxytoluene, commonly known as BHT, is a synthetic antioxidant that is widely used as a food additive. It is also employed in various industries, including cosmetics, pharmaceuticals, and the rubber and petroleum industries. BHT is added to products to prevent or…
CAS Number
128-37-0
INCI Name
Butylated Hydroxy Toluene (BHT)
HS Code
2907.19.90
Molecular Formula
C₁₅H₂₄O
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Product Specification
Physical Properties
| Property | Specification |
|---|---|
| Appearance | White crystalline solid |
| Odor | Very faint, musty, occasional cresylic-type odor |
| Molecular Weight (G/Mol) | 220.35 |
| Density Or Specific Gravity | 1.048 g/cm³ at 68 °F |
| Viscosity | 3.47 centistokes at 0 °C |
| Refractive Index | 1.4859 at 75 °C/D |
Chemical Properties
| Property | Specification |
|---|---|
| Water Solubility | less than 1 mg/mL at 68 °F |
Thermal Properties
| Property | Specification |
|---|---|
| Melting Point | 156 to 160 °F |
| Boiling Point | 509 °F at 760 mmHg |
| Flash Point | 260 °F |
Processing Methods & Reference Formulations
A. Cosmetic cream
Add Butylated Hydroxy Toluene (BHT) during the oil phase of cream production, as it is oil-soluble. Incorporate it at low concentrations (typically 0.01–0.1%), and ensure even dispersion by mixing thoroughly before emulsification to enhance antioxidant protection and product stability.
| Key Ingredients | Indicative Dosage (% w/w) |
|---|---|
| Sunflower Oil | 25% |
| Beeswax | 15% |
| Candelilla Wax | 5% |
| Shea Butter | 10% |
| Coconut Oil | 15% |
| Jojoba Oil | 5% |
| Zinc Oxide | 20% |
| Butylated Hydroxy Toluene (BHT) | 0.05% |
| Vitamin E Acetate | 1% |
| Tocopherol | 0.5% |
| Deionized Water | 2.95% |
| Fragrance (optional) | 0.5% |
B. Hair Shampoo
Add Butylated Hydroxy Toluene (BHT) to the oil or surfactant phase of the shampoo formulation, as it is lipid-soluble. Use at low levels (0.01–0.1%), ensuring uniform distribution to prevent oxidation of oils, fragrances, and other sensitive ingredients.
| Key Ingredients | Indicative Dosage (% w/w) |
|---|---|
| Primary Surfactants | 8-12% |
| Secondary Surfactants | 2-5% |
| Foaming Agents | 2-8% |
| Butylated Hydroxy Toluene | 0.01-0.1% |
| Water | 70-80% |
| Emollients, Humectants, Preservatives, Thickeners, pH Adjusters, etc. |
C. Makeup foundation
In makeup foundation formulation, add Butylated Hydroxy Toluene (BHT) to the oil phase during heating to ensure it fully dissolves and effectively protects oils from oxidation.
| Key Ingredients | Indicative Dosage (% w/w) |
|---|---|
| Water (Aqua) | 50% |
| Cyclopentasiloxane | 10% |
| Dimethicone | 5% |
| Glycerin | 3% |
| Butylated Hydroxy Toluene (BHT) | 0.1% |
| Butylene Glycol | 2% |
| Sodium Chloride | 0.5% |
| Titanium Dioxide | 5% |
| Iron Oxides | 5% |
| Phenoxyethanol | 0.8% |
| Ethylhexylglycerin | 0.2% |
| Fragrance |
D. Lip balm
In lip balm production, add Butylated Hydroxy Toluene (BHT) to the melted oil and wax phase to ensure complete dissolution and antioxidant protection.
| Key Ingredients | Indicative Dosage (% w/w) |
|---|---|
| Petrolatum | 40-50% |
| Paraffin Wax | 20% |
| Cera Alba (Beeswax) | 10% |
| Castor Oil | 10% |
| Butylated HydroxyToluene (BHT) | 0.1% |
| Tocopheryl Acetate (Vitamin E) | 0.5% |
| Aloe Vera Extract | 1% |
| Fragrance | 0.5% |
Dosing Guidelines
A. Dosing by Application
| Products | Authorized dosage % |
|---|---|
| Sunscreen Lotions, Creams | Upto 0.8% |
| Cosmetics Skin Care Creams, Lotions | Upto 0.8% |
| Hair Shampoo | 0.01-0.1% |
About Butylated Hydroxytoluene (BHT)
About Butylated Hydroxytoluene (BHT)
Regulatory Compliance
| Region | Max Allowed Level | Notes | Certification Body |
|---|---|---|---|
| United States | - | The FDA allows BHT as an antioxidant in cosmetics and personal care products but does not specify maximum concentrations. | FDA |
| European Union | - | Considered safe when used at a maximum concentration in Toothpaste: 0.1%, Mouthwash: 0.001%, Other leave-on and rinse-off products: 0.8% | - |
| Japan | - | BHT is permitted as an antioxidant in cosmetics, but no official maximum concentration is set. | MHLW – Ministry of Health, Labour and Welfare |
| United Kingdom | - | BHT is now considered a restricted substance in the UK. | - |
| India | - | No explicit national regulation for BHT in cosmetics | - |
| China | - | Not listed as prohibited/restricted | NMPA - National Medical Products Administration |
| Korea, Republic of | - | No explicit maximum | MFDS - Ministry of Food and Drug Safety |
| ASEAN | - | No explicit maximum | - |
FAQs - Butylated Hydroxytoluene (BHT)
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