If it has not been adequately purified during manufacture it can degrade over time to even more unstable forms. This makes nitroglycerin highly dangerous to transport or use. In its undiluted form, it is one of the worlds most powerful explosives, comparable to the more recently developed RDX and PETN. Early in its history,  liquid nitroglycerin was found to be  "desensitized" by freezing it at a temperature below 45 to 55 °F (7 to 13 °C) depending on its purity. Its sensitivity to shock while frozen is somewhat unpredictable: "It is more insensitive to the shock from a fulminate cap or a rifle ball when in that condition but on the other hand it appears to be more liable to explode on breaking, crushing, tamping, etc." Frozen nitroglycerine is much less energetic than liquid, and so must be thawed before use. Thawing it out can be extremely sensitizing, especially if impurities are present or the warming is too rapid. Ethylene glycol dinitrate or another polynitrate may be added to lower the melting point and thereby avoid the necessity of thawing frozen explosive.Chemically "desensitizing" nitroglycerin is possible to a point where it can be considered about as "safe" as modern high explosives, such as by the addition of ethanol, acetone, or dinitrotoluene. The nitroglycerin may have to be extracted from the desensitizer chemical to restore its effectiveness before use, for example by adding water to draw off ethanol used as a desensitizer. Detonation
Nitroglycerin and any diluents can deflagrate (burn).
The incubation period for the bacteria generally lasts from three-ten days. As the disease progresses. almost half the patients experience migratory polyarthralgias. Mechanism
Although the specific form of pathogenesis is still a subject of ongoing research, the bacteria has been observed to result in morphological symptoms that are atypical of bacterial infection. Autopsy of the victims vividly exhibit erythrophagocytosis, hepatosplenomegaly, interstitial pneumonia, and lymph node sinus hyperplasia. In addition, Myocarditis and Endocarditis have also been demonstrated in such patients. Synovial and serosal surfaces may be more suited for the growth of the bacteria within the body. Furthermore, leukocytoclastic vasculitis has been observed in the skin lesions. Diagnosis
The microaerophilic conditions needed for the bacteria to grow, makes its detection incredibly difficult. Trypticase soy agar or broth enriched with 20% blood, serum, or ascitic fluid is necessary for the optimal growth of the bacteria under laboratory conditions. The organism may take up to seven days to grow and the colonies generally have a circular, grayish and shiny appearance on agar. Once the microbe has grown, primary identification can be carried out via biochemical and carbohydrate fermentation analysis. Biochemical tests such as oxidase, catalase, indole, and nitrate can be used to detect the bacteria. However, S. moniliformis can be biochemically differentiated from similar bacteria by their negative production of indole, catalase, and oxidase, while reduction of nitrate to nitrite. PCR assay specific for Streptobacillus moniliformis can also be used to detect the bacteria in a patient sample with high accuracy.