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Pure anhydrous caffeine is a bitter-tasting, white, odorless powder with a melting point of 235–238 °C. [7] [8] Caffeine is moderately soluble in water at room temperature (2 g/100 mL), but quickly soluble in boiling water (66 g/100 mL). [197] It is also moderately soluble in ethanol (1.5 g/100 mL). [197]
Caffeine Properties Chemical formula. C 8 H 10 N 4 O 2: Molar mass: 194.194 g·mol −1 Appearance Odorless, white needles or powder Density: 1.23 g/cm 3, solid [1 ...
A single teaspoon of pure caffeine powder is equal to around 28 cups of coffee, and "very small amounts may cause accidental overdose," according to the Food and Drug Administration.
The caffeine content of instant coffee is generally less than that of brewed coffee. One study comparing various home-prepared samples came to the result that regular instant coffee (not decaffeinated) has a median caffeine content of 66 mg per cup (range 29–117 mg per cup), with a median cup size of 225 ml (range 170–285 ml) and a caffeine ...
The FDA is specifically citing the use of pure. While caffeine in your coffee, tea or soda might help give you that little extra boost in the morning, the U.S. Food and Drug Administration is ...
Caffeine is a stimulant found naturally in a range of plants, ... who advises using caution with supplements and to avoid pure caffeine powders that are easy to over-consume without precise ...