Assertion: arsine's flammability | /r/RelatedTo | ph
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Source sentences:
text: In 1844, Paul Thénard, son of the French chemist Louis Jacques Thénard, used a cold trap to separate diphosphine from phosphine that had been generated from calcium phosphide, thereby demonstrating that P 2 H 4 is responsible for spontaneous flammability associated with PH 3 , and also for the characteristic orange/brown color that can form on surfaces, which is a polymerisation product.