Starch rate

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Starch nitrates are derivatives of starch that belong to the starch esters - more precisely to the nitric acid esters .

Manufacturing

Starch nitrates are produced by reacting starch with concentrated sulfuric acid (H 2 SO 4 ) and nitric acid (HNO 3 ) in a polymer-like reaction . Since not all hydroxyl groups react in this reaction , mixtures are formed with different degrees of substitution . The degree of substitution of the individual starch components within a polymer can also vary.

Starch nitrate V1.svg

application

They have similar properties to cellulose nitrates , but are of far less technical and economic importance.

Individual evidence

  1. a b Entry on starch rate. In: Römpp Online . Georg Thieme Verlag, accessed on March 18, 2016.