Butylated hydroxytoluene

Physicochemical properties
Density: 1.048
Boiling point: 265 ºC
Melting point: 69-71 ºC
Molecular formula: C15H24O
Molecular weight: 220.350
Flash point: 127 ºC
Accurate quality: 220.182709
PSA: 20.23000
LogP: 5.32
Appearance: white crystal or crystalline powder
Vapor density: 7.6 (vs air)
Vapor pressure: 0.0±0.6 mmHg at 25°C
Refractive index: 1.499
Storage conditions: Avoid direct sunlight, store in a cool, dry place, not for long-term storage.

Stability
1. For white or light yellow crystals, the color will turn yellow when exposed to light and gradually darken. Odorless, tasteless, low toxicity, flammable.
2. Solubility in the following solvents at room temperature: 25% methanol, 25% to 26% ethanol, 30% isopropanol, 30% mineral oil, 40% acetone, 50% petroleum ether, 40% benzene, lard (40%) ～50℃) 40%～50%, corn oil and soybean oil 40%～50%. It is insoluble in water, 10% sodium hydroxide solution, glycerin and propylene glycol.
3. It is quite stable to heat and has the sublimation characteristic of monophenol type. The principle of BHT's antioxidant effect is the same as that of BHA. Generally, it is used in combination with BHA, and citric acid or other organic acids are used as synergists.
4. Exist in flue-cured tobacco leaves, burley tobacco leaves, oriental tobacco leaves and smoke.

More
1. Properties: colorless crystal or white crystalline powder, odorless and tasteless. When exposed to light, the color turns yellow and gradually darkens.
2. Relative density (20/4℃): 0.8937
3. Refractive index (n75D): 1.4859
4. Melting point (℃): 71
5. Boiling point (ºC): 265
6. Flash point (℃): 127
7. Viscosity (80℃, mPa): 3.74
8. Solubility: Easily soluble in ethanol (25%, 25°C), acetone (40%), benzene (40%), soybean oil, cottonseed oil, lard, and insoluble in water, glycerin, and propylene glycol.
9. Normal temperature refractive index (n25): 1.489575
10. Relative density (25℃, 4℃): 0.89980