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Thermal cracking. In thermal cracking, high temperatures (typically in the range of 450Â°C to 750Â°C) and pressures (up to about 70 atmospheres) are used to break the large hydrocarbons into smaller ones. Thermal cracking gives mixtures of products containing high proportions of hydrocarbons with double bonds - alkenes.
Shimodaira [10] observed the SCC of a-brass (70/30) in Mattsson's soluÂ­. tions at pH=7.4, but not at pH=2.0 or 10.0. They suggested that the. cracking observed by Mattsson at pH=10.0 was due to mechanical failure.