Intel have specified and trademarked Ultrabook as a brand for a class of high-end subnotebook computers featuring reduced bulk without compromising battery life. Ultrabooks use low-power Intel Core processors, solid-state drives, and a unibody chassis to help meet these criteria.
It is an odorless, colorless, syrupy, sweet-tasting liquid. Ethylene glycol is moderately toxic, with children having been particularly at risk because of its sweet taste, until it became common to add bitter flavoring to consumer antifreezes containing it.
In contrast to ethylene glycol, propylene glycol rarely causes toxic effects. A. Absorption of propylene glycol from the gastrointestinal tract is slow. B. Propylene glycol is metabolized to more toxic compounds. C. Ethylene glycol is metabolized in the liver to less toxic metabolites.