indehiscent. (botany). Remaining closed at maturity, as certain fruits. Not splitting along regular lines. 1  Facebook. 2  Twitter.
Pyrolysis is a thermochemical decomposition of organic material at elevated temperatures in the absence of oxygen. Pyrolysis typically occurs under pressure and at operating temperatures about 430 Â°C (800 Â°F). Pyrolysis is a special case of thermolysis, and is most commonly used for organic materials, being, therefore, one of the processes involved in charring. In general, pyrolysis of organic substances produces gas and liquid products and leaves a solid residue richer in carbon content. Extreme pyrolysis, which leaves mostly carbon as the residue, is called carbonization.
A polyol is an alcohol containing multiple hydroxyl groups. In two technological disciplines the term polyol has a special meaning: food science and polymer chemistry.n polymer chemistry, polyols are compounds with multiple hydroxyl functional groups available for organic reactions. A molecule with two hydroxyl groups is a diol, one with three is a triol, one with four is a tetrol and so on.