Starch
Food
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Starch or amylum is a polymeric carbohydrate consisting of numerous glucose units joined by glycosidic bonds. This polysaccharide is produced by most green plants for energy storage. Wikipedia
IUPAC ID: (2R,3S,4S,5R,6R)-2-(hydroxymethyl)-6-[(2R,3S,4R,5R,6S)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-oxane-3,4,5-triol
Appearance: White powder
Autoignition temperature: 410 °C (770 °F; 683 K)
Melting point: decomposes
Molar mass: Variable
Solubility in water: insoluble (see starch gelatinization)
Std enthalpy of combustion (ΔcH⦵298): 4.1788 kilocalories per gram (17.484 kJ/g) (Higher heating value)