来自MSN2 个月
Illegal amount of potentially explosive barium nitrate was stored at farm by pyrotechnic ...Mr Masson said the criminal activities of the specialist chemical supplier from Crowle ... there was a lock up at Kirton Lindsey with barium nitrate. He said he had bought it in bulk from a ...
Two dry solids --- barium hydroxide and ammonium nitrate --- are mixed to produce an endothermic reaction. The temperature of the mixture drops approximately 45oC and is cold enough to freeze the ...
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