Property and Preparation of Nitroglycerine

4 Properly and Preparation of Trinitrate Esters 5.4.1 Property and Preparation of Nitroglycerine [1, 84-87] 

Nitroglycerine with code of NG, also called glycerine trinitrate or propanetriol trinitrate, is the most widely used liquid explosive with strong explosion strength. 

Nitroglycerine is a colorless transparent oily liquid. The industrial products are usually light yellow or light brown, based on the purity of raw materials and production conditions. A sweetish odor can be smelled when heated at 50 °C. It tastes bittersweet and hot. 

Nitroglycerine has two modifications with different freezing points and crystalline forms. For the crystalline structure, the molten phase at low temperature is not stable. It can be spontaneously converted to the stable phase with high melting point. The freezing points of nitroglycerine obtained in different references are summarized in Table 5.27. 

Crystal line speed of stable nitroglycerine phase formed at different temperamre is listed in Table 5.28. 

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