Chemical hydrides ammonia borane

Reviewed and evaluated more than 120 published papers, reports, patents and other archival records related to ammonia-based chemical hydrides, including amine borane complexes, as prospective chemical hydrogen storage compounds. 

A few chemicals have been reported to attack perfluoropolymers at or near their upper service temperature (260°C).t They react with 80% sodium or potassium hydroxide. They also react with some strong Lewis bases including metal hydrides such as boranes (B2Hg), aluminum chloride, ammonia, and some amines (R-NH2) and imines (R=NH). Slow oxidative attacks may take place in the presence of 70% nitric acid at 250°C under pressure. It is important to test the effect of these reagents on perfluoropolymers under the specific application temperature to determine the material limitations. 

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