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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 ...
The family of a caffeine powder overdose victim continues fight for the FDA to ban the deadly, but legal drug.
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 ...
Paraxanthine is believed to exhibit a lower toxicity than caffeine and the caffeine metabolite, theophylline. [ 22 ] [ 23 ] In a mouse model, intraperitoneal paraxanthine doses of 175 mg/kg/day did not result in animal death or overt signs of stress; [ 24 ] by comparison, the intraperitoneal LD50 for caffeine in mice is reported at 168 mg/kg ...
Made by steeping fresh or dried ginger in hot water, ginger tea is caffeine-free like other herbal teas. Health benefits: Few studies have examined the effects of ginger tea specifically, ...